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git.proxmox.com Git - mirror_qemu.git/blob - target-i386/op.c
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 */
172 void OPPROTO
op_mulb_AL_T0(void)
175 res
= (uint8_t)EAX
* (uint8_t)T0
;
176 EAX
= (EAX
& 0xffff0000) | res
;
177 CC_SRC
= (res
& 0xff00);
180 void OPPROTO
op_imulb_AL_T0(void)
183 res
= (int8_t)EAX
* (int8_t)T0
;
184 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
185 CC_SRC
= (res
!= (int8_t)res
);
188 void OPPROTO
op_mulw_AX_T0(void)
191 res
= (uint16_t)EAX
* (uint16_t)T0
;
192 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
193 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
197 void OPPROTO
op_imulw_AX_T0(void)
200 res
= (int16_t)EAX
* (int16_t)T0
;
201 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
202 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
203 CC_SRC
= (res
!= (int16_t)res
);
206 void OPPROTO
op_mull_EAX_T0(void)
209 res
= (uint64_t)((uint32_t)EAX
) * (uint64_t)((uint32_t)T0
);
215 void OPPROTO
op_imull_EAX_T0(void)
218 res
= (int64_t)((int32_t)EAX
) * (int64_t)((int32_t)T0
);
221 CC_SRC
= (res
!= (int32_t)res
);
224 void OPPROTO
op_imulw_T0_T1(void)
227 res
= (int16_t)T0
* (int16_t)T1
;
229 CC_SRC
= (res
!= (int16_t)res
);
232 void OPPROTO
op_imull_T0_T1(void)
235 res
= (int64_t)((int32_t)T0
) * (int64_t)((int32_t)T1
);
237 CC_SRC
= (res
!= (int32_t)res
);
240 /* division, flags are undefined */
241 /* XXX: add exceptions for overflow */
243 void OPPROTO
op_divb_AL_T0(void)
245 unsigned int num
, den
, q
, r
;
247 num
= (EAX
& 0xffff);
251 raise_exception(EXCP00_DIVZ
);
253 q
= (num
/ den
) & 0xff;
254 r
= (num
% den
) & 0xff;
255 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
258 void OPPROTO
op_idivb_AL_T0(void)
266 raise_exception(EXCP00_DIVZ
);
268 q
= (num
/ den
) & 0xff;
269 r
= (num
% den
) & 0xff;
270 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
273 void OPPROTO
op_divw_AX_T0(void)
275 unsigned int num
, den
, q
, r
;
277 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
281 raise_exception(EXCP00_DIVZ
);
283 q
= (num
/ den
) & 0xffff;
284 r
= (num
% den
) & 0xffff;
285 EAX
= (EAX
& 0xffff0000) | q
;
286 EDX
= (EDX
& 0xffff0000) | r
;
289 void OPPROTO
op_idivw_AX_T0(void)
293 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
297 raise_exception(EXCP00_DIVZ
);
299 q
= (num
/ den
) & 0xffff;
300 r
= (num
% den
) & 0xffff;
301 EAX
= (EAX
& 0xffff0000) | q
;
302 EDX
= (EDX
& 0xffff0000) | r
;
305 void OPPROTO
op_divl_EAX_T0(void)
307 helper_divl_EAX_T0(PARAM1
);
310 void OPPROTO
op_idivl_EAX_T0(void)
312 helper_idivl_EAX_T0(PARAM1
);
315 /* constant load & misc op */
317 void OPPROTO
op_movl_T0_im(void)
322 void OPPROTO
op_addl_T0_im(void)
327 void OPPROTO
op_andl_T0_ffff(void)
332 void OPPROTO
op_andl_T0_im(void)
337 void OPPROTO
op_movl_T0_T1(void)
342 void OPPROTO
op_movl_T1_im(void)
347 void OPPROTO
op_addl_T1_im(void)
352 void OPPROTO
op_movl_T1_A0(void)
357 void OPPROTO
op_movl_A0_im(void)
362 void OPPROTO
op_addl_A0_im(void)
367 void OPPROTO
op_addl_A0_AL(void)
372 void OPPROTO
op_andl_A0_ffff(void)
379 #define MEMSUFFIX _raw
382 #if !defined(CONFIG_USER_ONLY)
383 #define MEMSUFFIX _user
386 #define MEMSUFFIX _kernel
390 /* used for bit operations */
392 void OPPROTO
op_add_bitw_A0_T1(void)
394 A0
+= ((int32_t)T1
>> 4) << 1;
397 void OPPROTO
op_add_bitl_A0_T1(void)
399 A0
+= ((int32_t)T1
>> 5) << 2;
404 void OPPROTO
op_jmp_T0(void)
409 void OPPROTO
op_jmp_im(void)
414 void OPPROTO
op_hlt(void)
416 env
->exception_index
= EXCP_HLT
;
420 void OPPROTO
op_debug(void)
422 env
->exception_index
= EXCP_DEBUG
;
426 void OPPROTO
op_raise_interrupt(void)
429 unsigned int next_eip
;
432 raise_interrupt(intno
, 1, 0, next_eip
);
435 void OPPROTO
op_raise_exception(void)
438 exception_index
= PARAM1
;
439 raise_exception(exception_index
);
442 void OPPROTO
op_into(void)
445 eflags
= cc_table
[CC_OP
].compute_all();
447 raise_interrupt(EXCP04_INTO
, 1, 0, PARAM1
);
452 void OPPROTO
op_cli(void)
454 env
->eflags
&= ~IF_MASK
;
457 void OPPROTO
op_sti(void)
459 env
->eflags
|= IF_MASK
;
462 void OPPROTO
op_set_inhibit_irq(void)
464 env
->hflags
|= HF_INHIBIT_IRQ_MASK
;
467 void OPPROTO
op_reset_inhibit_irq(void)
469 env
->hflags
&= ~HF_INHIBIT_IRQ_MASK
;
473 /* vm86plus instructions */
474 void OPPROTO
op_cli_vm(void)
476 env
->eflags
&= ~VIF_MASK
;
479 void OPPROTO
op_sti_vm(void)
481 env
->eflags
|= VIF_MASK
;
482 if (env
->eflags
& VIP_MASK
) {
484 raise_exception(EXCP0D_GPF
);
490 void OPPROTO
op_boundw(void)
493 low
= ldsw((uint8_t *)A0
);
494 high
= ldsw((uint8_t *)A0
+ 2);
496 if (v
< low
|| v
> high
) {
498 raise_exception(EXCP05_BOUND
);
503 void OPPROTO
op_boundl(void)
506 low
= ldl((uint8_t *)A0
);
507 high
= ldl((uint8_t *)A0
+ 4);
509 if (v
< low
|| v
> high
) {
511 raise_exception(EXCP05_BOUND
);
516 void OPPROTO
op_cmpxchg8b(void)
521 void OPPROTO
op_jmp(void)
523 JUMP_TB(op_jmp
, PARAM1
, 0, PARAM2
);
526 void OPPROTO
op_movl_T0_0(void)
531 void OPPROTO
op_exit_tb(void)
536 /* multiple size ops */
541 #include "ops_template.h"
545 #include "ops_template.h"
549 #include "ops_template.h"
554 void OPPROTO
op_movsbl_T0_T0(void)
559 void OPPROTO
op_movzbl_T0_T0(void)
564 void OPPROTO
op_movswl_T0_T0(void)
569 void OPPROTO
op_movzwl_T0_T0(void)
574 void OPPROTO
op_movswl_EAX_AX(void)
579 void OPPROTO
op_movsbw_AX_AL(void)
581 EAX
= (EAX
& 0xffff0000) | ((int8_t)EAX
& 0xffff);
584 void OPPROTO
op_movslq_EDX_EAX(void)
586 EDX
= (int32_t)EAX
>> 31;
589 void OPPROTO
op_movswl_DX_AX(void)
591 EDX
= (EDX
& 0xffff0000) | (((int16_t)EAX
>> 15) & 0xffff);
594 /* string ops helpers */
596 void OPPROTO
op_addl_ESI_T0(void)
601 void OPPROTO
op_addw_ESI_T0(void)
603 ESI
= (ESI
& ~0xffff) | ((ESI
+ T0
) & 0xffff);
606 void OPPROTO
op_addl_EDI_T0(void)
611 void OPPROTO
op_addw_EDI_T0(void)
613 EDI
= (EDI
& ~0xffff) | ((EDI
+ T0
) & 0xffff);
616 void OPPROTO
op_decl_ECX(void)
621 void OPPROTO
op_decw_ECX(void)
623 ECX
= (ECX
& ~0xffff) | ((ECX
- 1) & 0xffff);
628 void op_pushl_T0(void)
632 stl((void *)offset
, T0
);
633 /* modify ESP after to handle exceptions correctly */
637 void op_pushw_T0(void)
641 stw((void *)offset
, T0
);
642 /* modify ESP after to handle exceptions correctly */
646 void op_pushl_ss32_T0(void)
650 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
651 /* modify ESP after to handle exceptions correctly */
655 void op_pushw_ss32_T0(void)
659 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
660 /* modify ESP after to handle exceptions correctly */
664 void op_pushl_ss16_T0(void)
667 offset
= (ESP
- 4) & 0xffff;
668 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
669 /* modify ESP after to handle exceptions correctly */
670 ESP
= (ESP
& ~0xffff) | offset
;
673 void op_pushw_ss16_T0(void)
676 offset
= (ESP
- 2) & 0xffff;
677 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
678 /* modify ESP after to handle exceptions correctly */
679 ESP
= (ESP
& ~0xffff) | offset
;
682 /* NOTE: ESP update is done after */
683 void op_popl_T0(void)
685 T0
= ldl((void *)ESP
);
688 void op_popw_T0(void)
690 T0
= lduw((void *)ESP
);
693 void op_popl_ss32_T0(void)
695 T0
= ldl(env
->segs
[R_SS
].base
+ ESP
);
698 void op_popw_ss32_T0(void)
700 T0
= lduw(env
->segs
[R_SS
].base
+ ESP
);
703 void op_popl_ss16_T0(void)
705 T0
= ldl(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
708 void op_popw_ss16_T0(void)
710 T0
= lduw(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
713 void op_addl_ESP_4(void)
718 void op_addl_ESP_2(void)
723 void op_addw_ESP_4(void)
725 ESP
= (ESP
& ~0xffff) | ((ESP
+ 4) & 0xffff);
728 void op_addw_ESP_2(void)
730 ESP
= (ESP
& ~0xffff) | ((ESP
+ 2) & 0xffff);
733 void op_addl_ESP_im(void)
738 void op_addw_ESP_im(void)
740 ESP
= (ESP
& ~0xffff) | ((ESP
+ PARAM1
) & 0xffff);
743 void OPPROTO
op_rdtsc(void)
748 void OPPROTO
op_cpuid(void)
753 void OPPROTO
op_rdmsr(void)
758 void OPPROTO
op_wrmsr(void)
766 void OPPROTO
op_aam(void)
773 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
777 void OPPROTO
op_aad(void)
782 ah
= (EAX
>> 8) & 0xff;
783 al
= ((ah
* base
) + al
) & 0xff;
784 EAX
= (EAX
& ~0xffff) | al
;
788 void OPPROTO
op_aaa(void)
794 eflags
= cc_table
[CC_OP
].compute_all();
797 ah
= (EAX
>> 8) & 0xff;
799 icarry
= (al
> 0xf9);
800 if (((al
& 0x0f) > 9 ) || af
) {
801 al
= (al
+ 6) & 0x0f;
802 ah
= (ah
+ 1 + icarry
) & 0xff;
803 eflags
|= CC_C
| CC_A
;
805 eflags
&= ~(CC_C
| CC_A
);
808 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
812 void OPPROTO
op_aas(void)
818 eflags
= cc_table
[CC_OP
].compute_all();
821 ah
= (EAX
>> 8) & 0xff;
824 if (((al
& 0x0f) > 9 ) || af
) {
825 al
= (al
- 6) & 0x0f;
826 ah
= (ah
- 1 - icarry
) & 0xff;
827 eflags
|= CC_C
| CC_A
;
829 eflags
&= ~(CC_C
| CC_A
);
832 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
836 void OPPROTO
op_daa(void)
841 eflags
= cc_table
[CC_OP
].compute_all();
847 if (((al
& 0x0f) > 9 ) || af
) {
848 al
= (al
+ 6) & 0xff;
851 if ((al
> 0x9f) || cf
) {
852 al
= (al
+ 0x60) & 0xff;
855 EAX
= (EAX
& ~0xff) | al
;
856 /* well, speed is not an issue here, so we compute the flags by hand */
857 eflags
|= (al
== 0) << 6; /* zf */
858 eflags
|= parity_table
[al
]; /* pf */
859 eflags
|= (al
& 0x80); /* sf */
863 void OPPROTO
op_das(void)
868 eflags
= cc_table
[CC_OP
].compute_all();
875 if (((al
& 0x0f) > 9 ) || af
) {
879 al
= (al
- 6) & 0xff;
881 if ((al1
> 0x99) || cf
) {
882 al
= (al
- 0x60) & 0xff;
885 EAX
= (EAX
& ~0xff) | al
;
886 /* well, speed is not an issue here, so we compute the flags by hand */
887 eflags
|= (al
== 0) << 6; /* zf */
888 eflags
|= parity_table
[al
]; /* pf */
889 eflags
|= (al
& 0x80); /* sf */
893 /* segment handling */
895 /* never use it with R_CS */
896 void OPPROTO
op_movl_seg_T0(void)
898 load_seg(PARAM1
, T0
& 0xffff, PARAM2
);
901 /* faster VM86 version */
902 void OPPROTO
op_movl_seg_T0_vm(void)
907 selector
= T0
& 0xffff;
908 /* env->segs[] access */
909 sc
= (SegmentCache
*)((char *)env
+ PARAM1
);
910 sc
->selector
= selector
;
911 sc
->base
= (void *)(selector
<< 4);
914 void OPPROTO
op_movl_T0_seg(void)
916 T0
= env
->segs
[PARAM1
].selector
;
919 void OPPROTO
op_movl_A0_seg(void)
921 A0
= *(unsigned long *)((char *)env
+ PARAM1
);
924 void OPPROTO
op_addl_A0_seg(void)
926 A0
+= *(unsigned long *)((char *)env
+ PARAM1
);
929 void OPPROTO
op_lsl(void)
934 void OPPROTO
op_lar(void)
939 void OPPROTO
op_verr(void)
944 void OPPROTO
op_verw(void)
949 void OPPROTO
op_arpl(void)
951 if ((T0
& 3) < (T1
& 3)) {
952 /* XXX: emulate bug or 0xff3f0000 oring as in bochs ? */
953 T0
= (T0
& ~3) | (T1
& 3);
961 void OPPROTO
op_arpl_update(void)
964 eflags
= cc_table
[CC_OP
].compute_all();
965 CC_SRC
= (eflags
& ~CC_Z
) | T1
;
968 /* T0: segment, T1:eip */
969 void OPPROTO
op_ljmp_protected_T0_T1(void)
971 helper_ljmp_protected_T0_T1();
974 void OPPROTO
op_lcall_real_T0_T1(void)
976 helper_lcall_real_T0_T1(PARAM1
, PARAM2
);
979 void OPPROTO
op_lcall_protected_T0_T1(void)
981 helper_lcall_protected_T0_T1(PARAM1
, PARAM2
);
984 void OPPROTO
op_iret_real(void)
986 helper_iret_real(PARAM1
);
989 void OPPROTO
op_iret_protected(void)
991 helper_iret_protected(PARAM1
);
994 void OPPROTO
op_lret_protected(void)
996 helper_lret_protected(PARAM1
, PARAM2
);
999 void OPPROTO
op_lldt_T0(void)
1004 void OPPROTO
op_ltr_T0(void)
1009 /* CR registers access */
1010 void OPPROTO
op_movl_crN_T0(void)
1012 helper_movl_crN_T0(PARAM1
);
1015 /* DR registers access */
1016 void OPPROTO
op_movl_drN_T0(void)
1018 helper_movl_drN_T0(PARAM1
);
1021 void OPPROTO
op_lmsw_T0(void)
1023 /* only 4 lower bits of CR0 are modified */
1024 T0
= (env
->cr
[0] & ~0xf) | (T0
& 0xf);
1025 helper_movl_crN_T0(0);
1028 void OPPROTO
op_invlpg_A0(void)
1033 void OPPROTO
op_movl_T0_env(void)
1035 T0
= *(uint32_t *)((char *)env
+ PARAM1
);
1038 void OPPROTO
op_movl_env_T0(void)
1040 *(uint32_t *)((char *)env
+ PARAM1
) = T0
;
1043 void OPPROTO
op_movl_env_T1(void)
1045 *(uint32_t *)((char *)env
+ PARAM1
) = T1
;
1048 void OPPROTO
op_clts(void)
1050 env
->cr
[0] &= ~CR0_TS_MASK
;
1053 /* flags handling */
1055 /* slow jumps cases : in order to avoid calling a function with a
1056 pointer (which can generate a stack frame on PowerPC), we use
1057 op_setcc to set T0 and then call op_jcc. */
1058 void OPPROTO
op_jcc(void)
1061 JUMP_TB(op_jcc
, PARAM1
, 0, PARAM2
);
1063 JUMP_TB(op_jcc
, PARAM1
, 1, PARAM3
);
1067 void OPPROTO
op_jcc_im(void)
1076 /* slow set cases (compute x86 flags) */
1077 void OPPROTO
op_seto_T0_cc(void)
1080 eflags
= cc_table
[CC_OP
].compute_all();
1081 T0
= (eflags
>> 11) & 1;
1084 void OPPROTO
op_setb_T0_cc(void)
1086 T0
= cc_table
[CC_OP
].compute_c();
1089 void OPPROTO
op_setz_T0_cc(void)
1092 eflags
= cc_table
[CC_OP
].compute_all();
1093 T0
= (eflags
>> 6) & 1;
1096 void OPPROTO
op_setbe_T0_cc(void)
1099 eflags
= cc_table
[CC_OP
].compute_all();
1100 T0
= (eflags
& (CC_Z
| CC_C
)) != 0;
1103 void OPPROTO
op_sets_T0_cc(void)
1106 eflags
= cc_table
[CC_OP
].compute_all();
1107 T0
= (eflags
>> 7) & 1;
1110 void OPPROTO
op_setp_T0_cc(void)
1113 eflags
= cc_table
[CC_OP
].compute_all();
1114 T0
= (eflags
>> 2) & 1;
1117 void OPPROTO
op_setl_T0_cc(void)
1120 eflags
= cc_table
[CC_OP
].compute_all();
1121 T0
= ((eflags
^ (eflags
>> 4)) >> 7) & 1;
1124 void OPPROTO
op_setle_T0_cc(void)
1127 eflags
= cc_table
[CC_OP
].compute_all();
1128 T0
= (((eflags
^ (eflags
>> 4)) & 0x80) || (eflags
& CC_Z
)) != 0;
1131 void OPPROTO
op_xor_T0_1(void)
1136 void OPPROTO
op_set_cc_op(void)
1141 /* XXX: clear VIF/VIP in all ops ? */
1143 void OPPROTO
op_movl_eflags_T0(void)
1145 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
));
1148 void OPPROTO
op_movw_eflags_T0(void)
1150 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
) & 0xffff);
1153 void OPPROTO
op_movl_eflags_T0_io(void)
1155 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
));
1158 void OPPROTO
op_movw_eflags_T0_io(void)
1160 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
) & 0xffff);
1163 void OPPROTO
op_movl_eflags_T0_cpl0(void)
1165 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
| IOPL_MASK
));
1168 void OPPROTO
op_movw_eflags_T0_cpl0(void)
1170 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| IF_MASK
| IOPL_MASK
) & 0xffff);
1174 /* vm86plus version */
1175 void OPPROTO
op_movw_eflags_T0_vm(void)
1179 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1180 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1181 /* we also update some system flags as in user mode */
1182 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK16
| VIF_MASK
)) |
1183 (eflags
& FL_UPDATE_MASK16
);
1184 if (eflags
& IF_MASK
) {
1185 env
->eflags
|= VIF_MASK
;
1186 if (env
->eflags
& VIP_MASK
) {
1188 raise_exception(EXCP0D_GPF
);
1194 void OPPROTO
op_movl_eflags_T0_vm(void)
1198 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1199 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1200 /* we also update some system flags as in user mode */
1201 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK32
| VIF_MASK
)) |
1202 (eflags
& FL_UPDATE_MASK32
);
1203 if (eflags
& IF_MASK
) {
1204 env
->eflags
|= VIF_MASK
;
1205 if (env
->eflags
& VIP_MASK
) {
1207 raise_exception(EXCP0D_GPF
);
1214 /* XXX: compute only O flag */
1215 void OPPROTO
op_movb_eflags_T0(void)
1218 of
= cc_table
[CC_OP
].compute_all() & CC_O
;
1219 CC_SRC
= (T0
& (CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
)) | of
;
1222 void OPPROTO
op_movl_T0_eflags(void)
1225 eflags
= cc_table
[CC_OP
].compute_all();
1226 eflags
|= (DF
& DF_MASK
);
1227 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
);
1231 /* vm86plus version */
1233 void OPPROTO
op_movl_T0_eflags_vm(void)
1236 eflags
= cc_table
[CC_OP
].compute_all();
1237 eflags
|= (DF
& DF_MASK
);
1238 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
| IF_MASK
);
1239 if (env
->eflags
& VIF_MASK
)
1245 void OPPROTO
op_cld(void)
1250 void OPPROTO
op_std(void)
1255 void OPPROTO
op_clc(void)
1258 eflags
= cc_table
[CC_OP
].compute_all();
1263 void OPPROTO
op_stc(void)
1266 eflags
= cc_table
[CC_OP
].compute_all();
1271 void OPPROTO
op_cmc(void)
1274 eflags
= cc_table
[CC_OP
].compute_all();
1279 void OPPROTO
op_salc(void)
1282 cf
= cc_table
[CC_OP
].compute_c();
1283 EAX
= (EAX
& ~0xff) | ((-cf
) & 0xff);
1286 static int compute_all_eflags(void)
1291 static int compute_c_eflags(void)
1293 return CC_SRC
& CC_C
;
1296 static int compute_c_mul(void)
1303 static int compute_all_mul(void)
1305 int cf
, pf
, af
, zf
, sf
, of
;
1307 pf
= 0; /* undefined */
1308 af
= 0; /* undefined */
1309 zf
= 0; /* undefined */
1310 sf
= 0; /* undefined */
1312 return cf
| pf
| af
| zf
| sf
| of
;
1315 CCTable cc_table
[CC_OP_NB
] = {
1316 [CC_OP_DYNAMIC
] = { /* should never happen */ },
1318 [CC_OP_EFLAGS
] = { compute_all_eflags
, compute_c_eflags
},
1320 [CC_OP_MUL
] = { compute_all_mul
, compute_c_mul
},
1322 [CC_OP_ADDB
] = { compute_all_addb
, compute_c_addb
},
1323 [CC_OP_ADDW
] = { compute_all_addw
, compute_c_addw
},
1324 [CC_OP_ADDL
] = { compute_all_addl
, compute_c_addl
},
1326 [CC_OP_ADCB
] = { compute_all_adcb
, compute_c_adcb
},
1327 [CC_OP_ADCW
] = { compute_all_adcw
, compute_c_adcw
},
1328 [CC_OP_ADCL
] = { compute_all_adcl
, compute_c_adcl
},
1330 [CC_OP_SUBB
] = { compute_all_subb
, compute_c_subb
},
1331 [CC_OP_SUBW
] = { compute_all_subw
, compute_c_subw
},
1332 [CC_OP_SUBL
] = { compute_all_subl
, compute_c_subl
},
1334 [CC_OP_SBBB
] = { compute_all_sbbb
, compute_c_sbbb
},
1335 [CC_OP_SBBW
] = { compute_all_sbbw
, compute_c_sbbw
},
1336 [CC_OP_SBBL
] = { compute_all_sbbl
, compute_c_sbbl
},
1338 [CC_OP_LOGICB
] = { compute_all_logicb
, compute_c_logicb
},
1339 [CC_OP_LOGICW
] = { compute_all_logicw
, compute_c_logicw
},
1340 [CC_OP_LOGICL
] = { compute_all_logicl
, compute_c_logicl
},
1342 [CC_OP_INCB
] = { compute_all_incb
, compute_c_incl
},
1343 [CC_OP_INCW
] = { compute_all_incw
, compute_c_incl
},
1344 [CC_OP_INCL
] = { compute_all_incl
, compute_c_incl
},
1346 [CC_OP_DECB
] = { compute_all_decb
, compute_c_incl
},
1347 [CC_OP_DECW
] = { compute_all_decw
, compute_c_incl
},
1348 [CC_OP_DECL
] = { compute_all_decl
, compute_c_incl
},
1350 [CC_OP_SHLB
] = { compute_all_shlb
, compute_c_shlb
},
1351 [CC_OP_SHLW
] = { compute_all_shlw
, compute_c_shlw
},
1352 [CC_OP_SHLL
] = { compute_all_shll
, compute_c_shll
},
1354 [CC_OP_SARB
] = { compute_all_sarb
, compute_c_sarl
},
1355 [CC_OP_SARW
] = { compute_all_sarw
, compute_c_sarl
},
1356 [CC_OP_SARL
] = { compute_all_sarl
, compute_c_sarl
},
1359 /* floating point support. Some of the code for complicated x87
1360 functions comes from the LGPL'ed x86 emulator found in the Willows
1361 TWIN windows emulator. */
1363 #if defined(__powerpc__)
1364 extern CPU86_LDouble
copysign(CPU86_LDouble
, CPU86_LDouble
);
1366 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1367 double qemu_rint(double x
)
1369 double y
= 4503599627370496.0;
1380 #define rint qemu_rint
1385 void OPPROTO
op_flds_FT0_A0(void)
1387 #ifdef USE_FP_CONVERT
1388 FP_CONVERT
.i32
= ldl((void *)A0
);
1391 FT0
= ldfl((void *)A0
);
1395 void OPPROTO
op_fldl_FT0_A0(void)
1397 #ifdef USE_FP_CONVERT
1398 FP_CONVERT
.i64
= ldq((void *)A0
);
1401 FT0
= ldfq((void *)A0
);
1405 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1406 #ifdef USE_INT_TO_FLOAT_HELPERS
1408 void helper_fild_FT0_A0(void)
1410 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1413 void helper_fildl_FT0_A0(void)
1415 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1418 void helper_fildll_FT0_A0(void)
1420 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1423 void OPPROTO
op_fild_FT0_A0(void)
1425 helper_fild_FT0_A0();
1428 void OPPROTO
op_fildl_FT0_A0(void)
1430 helper_fildl_FT0_A0();
1433 void OPPROTO
op_fildll_FT0_A0(void)
1435 helper_fildll_FT0_A0();
1440 void OPPROTO
op_fild_FT0_A0(void)
1442 #ifdef USE_FP_CONVERT
1443 FP_CONVERT
.i32
= ldsw((void *)A0
);
1444 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1446 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1450 void OPPROTO
op_fildl_FT0_A0(void)
1452 #ifdef USE_FP_CONVERT
1453 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1454 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1456 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1460 void OPPROTO
op_fildll_FT0_A0(void)
1462 #ifdef USE_FP_CONVERT
1463 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1464 FT0
= (CPU86_LDouble
)FP_CONVERT
.i64
;
1466 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1473 void OPPROTO
op_flds_ST0_A0(void)
1476 new_fpstt
= (env
->fpstt
- 1) & 7;
1477 #ifdef USE_FP_CONVERT
1478 FP_CONVERT
.i32
= ldl((void *)A0
);
1479 env
->fpregs
[new_fpstt
] = FP_CONVERT
.f
;
1481 env
->fpregs
[new_fpstt
] = ldfl((void *)A0
);
1483 env
->fpstt
= new_fpstt
;
1484 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1487 void OPPROTO
op_fldl_ST0_A0(void)
1490 new_fpstt
= (env
->fpstt
- 1) & 7;
1491 #ifdef USE_FP_CONVERT
1492 FP_CONVERT
.i64
= ldq((void *)A0
);
1493 env
->fpregs
[new_fpstt
] = FP_CONVERT
.d
;
1495 env
->fpregs
[new_fpstt
] = ldfq((void *)A0
);
1497 env
->fpstt
= new_fpstt
;
1498 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1501 void OPPROTO
op_fldt_ST0_A0(void)
1503 helper_fldt_ST0_A0();
1506 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1507 #ifdef USE_INT_TO_FLOAT_HELPERS
1509 void helper_fild_ST0_A0(void)
1512 new_fpstt
= (env
->fpstt
- 1) & 7;
1513 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1514 env
->fpstt
= new_fpstt
;
1515 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1518 void helper_fildl_ST0_A0(void)
1521 new_fpstt
= (env
->fpstt
- 1) & 7;
1522 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1523 env
->fpstt
= new_fpstt
;
1524 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1527 void helper_fildll_ST0_A0(void)
1530 new_fpstt
= (env
->fpstt
- 1) & 7;
1531 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1532 env
->fpstt
= new_fpstt
;
1533 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1536 void OPPROTO
op_fild_ST0_A0(void)
1538 helper_fild_ST0_A0();
1541 void OPPROTO
op_fildl_ST0_A0(void)
1543 helper_fildl_ST0_A0();
1546 void OPPROTO
op_fildll_ST0_A0(void)
1548 helper_fildll_ST0_A0();
1553 void OPPROTO
op_fild_ST0_A0(void)
1556 new_fpstt
= (env
->fpstt
- 1) & 7;
1557 #ifdef USE_FP_CONVERT
1558 FP_CONVERT
.i32
= ldsw((void *)A0
);
1559 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1561 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1563 env
->fpstt
= new_fpstt
;
1564 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1567 void OPPROTO
op_fildl_ST0_A0(void)
1570 new_fpstt
= (env
->fpstt
- 1) & 7;
1571 #ifdef USE_FP_CONVERT
1572 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1573 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1575 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1577 env
->fpstt
= new_fpstt
;
1578 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1581 void OPPROTO
op_fildll_ST0_A0(void)
1584 new_fpstt
= (env
->fpstt
- 1) & 7;
1585 #ifdef USE_FP_CONVERT
1586 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1587 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i64
;
1589 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1591 env
->fpstt
= new_fpstt
;
1592 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1599 void OPPROTO
op_fsts_ST0_A0(void)
1601 #ifdef USE_FP_CONVERT
1602 FP_CONVERT
.f
= (float)ST0
;
1603 stfl((void *)A0
, FP_CONVERT
.f
);
1605 stfl((void *)A0
, (float)ST0
);
1609 void OPPROTO
op_fstl_ST0_A0(void)
1611 stfq((void *)A0
, (double)ST0
);
1614 void OPPROTO
op_fstt_ST0_A0(void)
1616 helper_fstt_ST0_A0();
1619 void OPPROTO
op_fist_ST0_A0(void)
1621 #if defined(__sparc__) && !defined(__sparc_v9__)
1622 register CPU86_LDouble d
asm("o0");
1630 if (val
!= (int16_t)val
)
1632 stw((void *)A0
, val
);
1635 void OPPROTO
op_fistl_ST0_A0(void)
1637 #if defined(__sparc__) && !defined(__sparc_v9__)
1638 register CPU86_LDouble d
asm("o0");
1646 stl((void *)A0
, val
);
1649 void OPPROTO
op_fistll_ST0_A0(void)
1651 #if defined(__sparc__) && !defined(__sparc_v9__)
1652 register CPU86_LDouble d
asm("o0");
1660 stq((void *)A0
, val
);
1663 void OPPROTO
op_fbld_ST0_A0(void)
1665 helper_fbld_ST0_A0();
1668 void OPPROTO
op_fbst_ST0_A0(void)
1670 helper_fbst_ST0_A0();
1675 void OPPROTO
op_fpush(void)
1680 void OPPROTO
op_fpop(void)
1685 void OPPROTO
op_fdecstp(void)
1687 env
->fpstt
= (env
->fpstt
- 1) & 7;
1688 env
->fpus
&= (~0x4700);
1691 void OPPROTO
op_fincstp(void)
1693 env
->fpstt
= (env
->fpstt
+ 1) & 7;
1694 env
->fpus
&= (~0x4700);
1697 void OPPROTO
op_fmov_ST0_FT0(void)
1702 void OPPROTO
op_fmov_FT0_STN(void)
1707 void OPPROTO
op_fmov_ST0_STN(void)
1712 void OPPROTO
op_fmov_STN_ST0(void)
1717 void OPPROTO
op_fxchg_ST0_STN(void)
1725 /* FPU operations */
1727 /* XXX: handle nans */
1728 void OPPROTO
op_fcom_ST0_FT0(void)
1730 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1732 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1733 else if (ST0
== FT0
)
1734 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1738 /* XXX: handle nans */
1739 void OPPROTO
op_fucom_ST0_FT0(void)
1741 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1743 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1744 else if (ST0
== FT0
)
1745 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1749 /* XXX: handle nans */
1750 void OPPROTO
op_fcomi_ST0_FT0(void)
1753 eflags
= cc_table
[CC_OP
].compute_all();
1754 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1757 else if (ST0
== FT0
)
1763 /* XXX: handle nans */
1764 void OPPROTO
op_fucomi_ST0_FT0(void)
1767 eflags
= cc_table
[CC_OP
].compute_all();
1768 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1771 else if (ST0
== FT0
)
1777 void OPPROTO
op_fcmov_ST0_STN_T0(void)
1785 void OPPROTO
op_fadd_ST0_FT0(void)
1790 void OPPROTO
op_fmul_ST0_FT0(void)
1795 void OPPROTO
op_fsub_ST0_FT0(void)
1800 void OPPROTO
op_fsubr_ST0_FT0(void)
1805 void OPPROTO
op_fdiv_ST0_FT0(void)
1810 void OPPROTO
op_fdivr_ST0_FT0(void)
1815 /* fp operations between STN and ST0 */
1817 void OPPROTO
op_fadd_STN_ST0(void)
1822 void OPPROTO
op_fmul_STN_ST0(void)
1827 void OPPROTO
op_fsub_STN_ST0(void)
1832 void OPPROTO
op_fsubr_STN_ST0(void)
1839 void OPPROTO
op_fdiv_STN_ST0(void)
1844 void OPPROTO
op_fdivr_STN_ST0(void)
1851 /* misc FPU operations */
1852 void OPPROTO
op_fchs_ST0(void)
1857 void OPPROTO
op_fabs_ST0(void)
1862 void OPPROTO
op_fxam_ST0(void)
1867 void OPPROTO
op_fld1_ST0(void)
1872 void OPPROTO
op_fldl2t_ST0(void)
1877 void OPPROTO
op_fldl2e_ST0(void)
1882 void OPPROTO
op_fldpi_ST0(void)
1887 void OPPROTO
op_fldlg2_ST0(void)
1892 void OPPROTO
op_fldln2_ST0(void)
1897 void OPPROTO
op_fldz_ST0(void)
1902 void OPPROTO
op_fldz_FT0(void)
1907 /* associated heplers to reduce generated code length and to simplify
1908 relocation (FP constants are usually stored in .rodata section) */
1910 void OPPROTO
op_f2xm1(void)
1915 void OPPROTO
op_fyl2x(void)
1920 void OPPROTO
op_fptan(void)
1925 void OPPROTO
op_fpatan(void)
1930 void OPPROTO
op_fxtract(void)
1935 void OPPROTO
op_fprem1(void)
1941 void OPPROTO
op_fprem(void)
1946 void OPPROTO
op_fyl2xp1(void)
1951 void OPPROTO
op_fsqrt(void)
1956 void OPPROTO
op_fsincos(void)
1961 void OPPROTO
op_frndint(void)
1966 void OPPROTO
op_fscale(void)
1971 void OPPROTO
op_fsin(void)
1976 void OPPROTO
op_fcos(void)
1981 void OPPROTO
op_fnstsw_A0(void)
1984 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1985 stw((void *)A0
, fpus
);
1988 void OPPROTO
op_fnstsw_EAX(void)
1991 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1992 EAX
= (EAX
& 0xffff0000) | fpus
;
1995 void OPPROTO
op_fnstcw_A0(void)
1997 stw((void *)A0
, env
->fpuc
);
2000 void OPPROTO
op_fldcw_A0(void)
2003 env
->fpuc
= lduw((void *)A0
);
2004 /* set rounding mode */
2005 switch(env
->fpuc
& RC_MASK
) {
2008 rnd_type
= FE_TONEAREST
;
2011 rnd_type
= FE_DOWNWARD
;
2014 rnd_type
= FE_UPWARD
;
2017 rnd_type
= FE_TOWARDZERO
;
2020 fesetround(rnd_type
);
2023 void OPPROTO
op_fclex(void)
2025 env
->fpus
&= 0x7f00;
2028 void OPPROTO
op_fninit(void)
2043 void OPPROTO
op_fnstenv_A0(void)
2045 helper_fstenv((uint8_t *)A0
, PARAM1
);
2048 void OPPROTO
op_fldenv_A0(void)
2050 helper_fldenv((uint8_t *)A0
, PARAM1
);
2053 void OPPROTO
op_fnsave_A0(void)
2055 helper_fsave((uint8_t *)A0
, PARAM1
);
2058 void OPPROTO
op_frstor_A0(void)
2060 helper_frstor((uint8_t *)A0
, PARAM1
);
2063 /* threading support */
2064 void OPPROTO
op_lock(void)
2069 void OPPROTO
op_unlock(void)