]>
git.proxmox.com Git - 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)
382 #define MEMSUFFIX _user
385 #define MEMSUFFIX _kernel
388 /* used for bit operations */
390 void OPPROTO
op_add_bitw_A0_T1(void)
392 A0
+= ((int32_t)T1
>> 4) << 1;
395 void OPPROTO
op_add_bitl_A0_T1(void)
397 A0
+= ((int32_t)T1
>> 5) << 2;
402 void OPPROTO
op_jmp_T0(void)
407 void OPPROTO
op_jmp_im(void)
412 void OPPROTO
op_hlt(void)
414 env
->exception_index
= EXCP_HLT
;
418 void OPPROTO
op_debug(void)
420 env
->exception_index
= EXCP_DEBUG
;
424 void OPPROTO
op_raise_interrupt(void)
427 unsigned int next_eip
;
430 raise_interrupt(intno
, 1, 0, next_eip
);
433 void OPPROTO
op_raise_exception(void)
436 exception_index
= PARAM1
;
437 raise_exception(exception_index
);
440 void OPPROTO
op_into(void)
443 eflags
= cc_table
[CC_OP
].compute_all();
445 raise_interrupt(EXCP04_INTO
, 1, 0, PARAM1
);
450 void OPPROTO
op_cli(void)
452 env
->eflags
&= ~IF_MASK
;
455 void OPPROTO
op_sti(void)
457 env
->eflags
|= IF_MASK
;
460 void OPPROTO
op_set_inhibit_irq(void)
462 env
->hflags
|= HF_INHIBIT_IRQ_MASK
;
465 void OPPROTO
op_reset_inhibit_irq(void)
467 env
->hflags
&= ~HF_INHIBIT_IRQ_MASK
;
471 /* vm86plus instructions */
472 void OPPROTO
op_cli_vm(void)
474 env
->eflags
&= ~VIF_MASK
;
477 void OPPROTO
op_sti_vm(void)
479 env
->eflags
|= VIF_MASK
;
480 if (env
->eflags
& VIP_MASK
) {
482 raise_exception(EXCP0D_GPF
);
488 void OPPROTO
op_boundw(void)
491 low
= ldsw((uint8_t *)A0
);
492 high
= ldsw((uint8_t *)A0
+ 2);
494 if (v
< low
|| v
> high
) {
496 raise_exception(EXCP05_BOUND
);
501 void OPPROTO
op_boundl(void)
504 low
= ldl((uint8_t *)A0
);
505 high
= ldl((uint8_t *)A0
+ 4);
507 if (v
< low
|| v
> high
) {
509 raise_exception(EXCP05_BOUND
);
514 void OPPROTO
op_cmpxchg8b(void)
519 void OPPROTO
op_jmp(void)
521 JUMP_TB(op_jmp
, PARAM1
, 0, PARAM2
);
524 void OPPROTO
op_movl_T0_0(void)
529 void OPPROTO
op_exit_tb(void)
534 /* multiple size ops */
539 #include "ops_template.h"
543 #include "ops_template.h"
547 #include "ops_template.h"
552 void OPPROTO
op_movsbl_T0_T0(void)
557 void OPPROTO
op_movzbl_T0_T0(void)
562 void OPPROTO
op_movswl_T0_T0(void)
567 void OPPROTO
op_movzwl_T0_T0(void)
572 void OPPROTO
op_movswl_EAX_AX(void)
577 void OPPROTO
op_movsbw_AX_AL(void)
579 EAX
= (EAX
& 0xffff0000) | ((int8_t)EAX
& 0xffff);
582 void OPPROTO
op_movslq_EDX_EAX(void)
584 EDX
= (int32_t)EAX
>> 31;
587 void OPPROTO
op_movswl_DX_AX(void)
589 EDX
= (EDX
& 0xffff0000) | (((int16_t)EAX
>> 15) & 0xffff);
592 /* string ops helpers */
594 void OPPROTO
op_addl_ESI_T0(void)
599 void OPPROTO
op_addw_ESI_T0(void)
601 ESI
= (ESI
& ~0xffff) | ((ESI
+ T0
) & 0xffff);
604 void OPPROTO
op_addl_EDI_T0(void)
609 void OPPROTO
op_addw_EDI_T0(void)
611 EDI
= (EDI
& ~0xffff) | ((EDI
+ T0
) & 0xffff);
614 void OPPROTO
op_decl_ECX(void)
619 void OPPROTO
op_decw_ECX(void)
621 ECX
= (ECX
& ~0xffff) | ((ECX
- 1) & 0xffff);
626 void op_pushl_T0(void)
630 stl((void *)offset
, T0
);
631 /* modify ESP after to handle exceptions correctly */
635 void op_pushw_T0(void)
639 stw((void *)offset
, T0
);
640 /* modify ESP after to handle exceptions correctly */
644 void op_pushl_ss32_T0(void)
648 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
649 /* modify ESP after to handle exceptions correctly */
653 void op_pushw_ss32_T0(void)
657 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
658 /* modify ESP after to handle exceptions correctly */
662 void op_pushl_ss16_T0(void)
665 offset
= (ESP
- 4) & 0xffff;
666 stl(env
->segs
[R_SS
].base
+ offset
, T0
);
667 /* modify ESP after to handle exceptions correctly */
668 ESP
= (ESP
& ~0xffff) | offset
;
671 void op_pushw_ss16_T0(void)
674 offset
= (ESP
- 2) & 0xffff;
675 stw(env
->segs
[R_SS
].base
+ offset
, T0
);
676 /* modify ESP after to handle exceptions correctly */
677 ESP
= (ESP
& ~0xffff) | offset
;
680 /* NOTE: ESP update is done after */
681 void op_popl_T0(void)
683 T0
= ldl((void *)ESP
);
686 void op_popw_T0(void)
688 T0
= lduw((void *)ESP
);
691 void op_popl_ss32_T0(void)
693 T0
= ldl(env
->segs
[R_SS
].base
+ ESP
);
696 void op_popw_ss32_T0(void)
698 T0
= lduw(env
->segs
[R_SS
].base
+ ESP
);
701 void op_popl_ss16_T0(void)
703 T0
= ldl(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
706 void op_popw_ss16_T0(void)
708 T0
= lduw(env
->segs
[R_SS
].base
+ (ESP
& 0xffff));
711 void op_addl_ESP_4(void)
716 void op_addl_ESP_2(void)
721 void op_addw_ESP_4(void)
723 ESP
= (ESP
& ~0xffff) | ((ESP
+ 4) & 0xffff);
726 void op_addw_ESP_2(void)
728 ESP
= (ESP
& ~0xffff) | ((ESP
+ 2) & 0xffff);
731 void op_addl_ESP_im(void)
736 void op_addw_ESP_im(void)
738 ESP
= (ESP
& ~0xffff) | ((ESP
+ PARAM1
) & 0xffff);
741 void OPPROTO
op_rdtsc(void)
746 void OPPROTO
op_cpuid(void)
751 void OPPROTO
op_rdmsr(void)
756 void OPPROTO
op_wrmsr(void)
764 void OPPROTO
op_aam(void)
771 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
775 void OPPROTO
op_aad(void)
780 ah
= (EAX
>> 8) & 0xff;
781 al
= ((ah
* base
) + al
) & 0xff;
782 EAX
= (EAX
& ~0xffff) | al
;
786 void OPPROTO
op_aaa(void)
792 eflags
= cc_table
[CC_OP
].compute_all();
795 ah
= (EAX
>> 8) & 0xff;
797 icarry
= (al
> 0xf9);
798 if (((al
& 0x0f) > 9 ) || af
) {
799 al
= (al
+ 6) & 0x0f;
800 ah
= (ah
+ 1 + icarry
) & 0xff;
801 eflags
|= CC_C
| CC_A
;
803 eflags
&= ~(CC_C
| CC_A
);
806 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
810 void OPPROTO
op_aas(void)
816 eflags
= cc_table
[CC_OP
].compute_all();
819 ah
= (EAX
>> 8) & 0xff;
822 if (((al
& 0x0f) > 9 ) || af
) {
823 al
= (al
- 6) & 0x0f;
824 ah
= (ah
- 1 - icarry
) & 0xff;
825 eflags
|= CC_C
| CC_A
;
827 eflags
&= ~(CC_C
| CC_A
);
830 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
834 void OPPROTO
op_daa(void)
839 eflags
= cc_table
[CC_OP
].compute_all();
845 if (((al
& 0x0f) > 9 ) || af
) {
846 al
= (al
+ 6) & 0xff;
849 if ((al
> 0x9f) || cf
) {
850 al
= (al
+ 0x60) & 0xff;
853 EAX
= (EAX
& ~0xff) | al
;
854 /* well, speed is not an issue here, so we compute the flags by hand */
855 eflags
|= (al
== 0) << 6; /* zf */
856 eflags
|= parity_table
[al
]; /* pf */
857 eflags
|= (al
& 0x80); /* sf */
861 void OPPROTO
op_das(void)
866 eflags
= cc_table
[CC_OP
].compute_all();
873 if (((al
& 0x0f) > 9 ) || af
) {
877 al
= (al
- 6) & 0xff;
879 if ((al1
> 0x99) || cf
) {
880 al
= (al
- 0x60) & 0xff;
883 EAX
= (EAX
& ~0xff) | al
;
884 /* well, speed is not an issue here, so we compute the flags by hand */
885 eflags
|= (al
== 0) << 6; /* zf */
886 eflags
|= parity_table
[al
]; /* pf */
887 eflags
|= (al
& 0x80); /* sf */
891 /* segment handling */
893 /* never use it with R_CS */
894 void OPPROTO
op_movl_seg_T0(void)
896 load_seg(PARAM1
, T0
& 0xffff, PARAM2
);
899 /* faster VM86 version */
900 void OPPROTO
op_movl_seg_T0_vm(void)
905 selector
= T0
& 0xffff;
906 /* env->segs[] access */
907 sc
= (SegmentCache
*)((char *)env
+ PARAM1
);
908 sc
->selector
= selector
;
909 sc
->base
= (void *)(selector
<< 4);
912 void OPPROTO
op_movl_T0_seg(void)
914 T0
= env
->segs
[PARAM1
].selector
;
917 void OPPROTO
op_movl_A0_seg(void)
919 A0
= *(unsigned long *)((char *)env
+ PARAM1
);
922 void OPPROTO
op_addl_A0_seg(void)
924 A0
+= *(unsigned long *)((char *)env
+ PARAM1
);
927 void OPPROTO
op_lsl(void)
932 void OPPROTO
op_lar(void)
937 /* T0: segment, T1:eip */
938 void OPPROTO
op_ljmp_protected_T0_T1(void)
940 helper_ljmp_protected_T0_T1();
943 void OPPROTO
op_lcall_real_T0_T1(void)
945 helper_lcall_real_T0_T1(PARAM1
, PARAM2
);
948 void OPPROTO
op_lcall_protected_T0_T1(void)
950 helper_lcall_protected_T0_T1(PARAM1
, PARAM2
);
953 void OPPROTO
op_iret_real(void)
955 helper_iret_real(PARAM1
);
958 void OPPROTO
op_iret_protected(void)
960 helper_iret_protected(PARAM1
);
963 void OPPROTO
op_lret_protected(void)
965 helper_lret_protected(PARAM1
, PARAM2
);
968 void OPPROTO
op_lldt_T0(void)
973 void OPPROTO
op_ltr_T0(void)
978 /* CR registers access */
979 void OPPROTO
op_movl_crN_T0(void)
981 helper_movl_crN_T0(PARAM1
);
984 /* DR registers access */
985 void OPPROTO
op_movl_drN_T0(void)
987 helper_movl_drN_T0(PARAM1
);
990 void OPPROTO
op_lmsw_T0(void)
992 /* only 4 lower bits of CR0 are modified */
993 T0
= (env
->cr
[0] & ~0xf) | (T0
& 0xf);
994 helper_movl_crN_T0(0);
997 void OPPROTO
op_invlpg_A0(void)
1002 void OPPROTO
op_movl_T0_env(void)
1004 T0
= *(uint32_t *)((char *)env
+ PARAM1
);
1007 void OPPROTO
op_movl_env_T0(void)
1009 *(uint32_t *)((char *)env
+ PARAM1
) = T0
;
1012 void OPPROTO
op_movl_env_T1(void)
1014 *(uint32_t *)((char *)env
+ PARAM1
) = T1
;
1017 void OPPROTO
op_clts(void)
1019 env
->cr
[0] &= ~CR0_TS_MASK
;
1022 /* flags handling */
1024 /* slow jumps cases : in order to avoid calling a function with a
1025 pointer (which can generate a stack frame on PowerPC), we use
1026 op_setcc to set T0 and then call op_jcc. */
1027 void OPPROTO
op_jcc(void)
1030 JUMP_TB(op_jcc
, PARAM1
, 0, PARAM2
);
1032 JUMP_TB(op_jcc
, PARAM1
, 1, PARAM3
);
1036 void OPPROTO
op_jcc_im(void)
1045 /* slow set cases (compute x86 flags) */
1046 void OPPROTO
op_seto_T0_cc(void)
1049 eflags
= cc_table
[CC_OP
].compute_all();
1050 T0
= (eflags
>> 11) & 1;
1053 void OPPROTO
op_setb_T0_cc(void)
1055 T0
= cc_table
[CC_OP
].compute_c();
1058 void OPPROTO
op_setz_T0_cc(void)
1061 eflags
= cc_table
[CC_OP
].compute_all();
1062 T0
= (eflags
>> 6) & 1;
1065 void OPPROTO
op_setbe_T0_cc(void)
1068 eflags
= cc_table
[CC_OP
].compute_all();
1069 T0
= (eflags
& (CC_Z
| CC_C
)) != 0;
1072 void OPPROTO
op_sets_T0_cc(void)
1075 eflags
= cc_table
[CC_OP
].compute_all();
1076 T0
= (eflags
>> 7) & 1;
1079 void OPPROTO
op_setp_T0_cc(void)
1082 eflags
= cc_table
[CC_OP
].compute_all();
1083 T0
= (eflags
>> 2) & 1;
1086 void OPPROTO
op_setl_T0_cc(void)
1089 eflags
= cc_table
[CC_OP
].compute_all();
1090 T0
= ((eflags
^ (eflags
>> 4)) >> 7) & 1;
1093 void OPPROTO
op_setle_T0_cc(void)
1096 eflags
= cc_table
[CC_OP
].compute_all();
1097 T0
= (((eflags
^ (eflags
>> 4)) & 0x80) || (eflags
& CC_Z
)) != 0;
1100 void OPPROTO
op_xor_T0_1(void)
1105 void OPPROTO
op_set_cc_op(void)
1110 #define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
1112 void OPPROTO
op_movl_eflags_T0(void)
1116 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1117 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1118 /* we also update some system flags as in user mode */
1119 env
->eflags
= (env
->eflags
& ~FL_UPDATE_MASK32
) |
1120 (eflags
& FL_UPDATE_MASK32
);
1123 void OPPROTO
op_movw_eflags_T0(void)
1127 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1128 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1129 /* we also update some system flags as in user mode */
1130 env
->eflags
= (env
->eflags
& ~FL_UPDATE_MASK16
) |
1131 (eflags
& FL_UPDATE_MASK16
);
1134 void OPPROTO
op_movl_eflags_T0_cpl0(void)
1136 load_eflags(T0
, FL_UPDATE_CPL0_MASK
);
1139 void OPPROTO
op_movw_eflags_T0_cpl0(void)
1141 load_eflags(T0
, FL_UPDATE_CPL0_MASK
& 0xffff);
1145 /* vm86plus version */
1146 void OPPROTO
op_movw_eflags_T0_vm(void)
1150 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1151 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1152 /* we also update some system flags as in user mode */
1153 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK16
| VIF_MASK
)) |
1154 (eflags
& FL_UPDATE_MASK16
);
1155 if (eflags
& IF_MASK
) {
1156 env
->eflags
|= VIF_MASK
;
1157 if (env
->eflags
& VIP_MASK
) {
1159 raise_exception(EXCP0D_GPF
);
1165 void OPPROTO
op_movl_eflags_T0_vm(void)
1169 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1170 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1171 /* we also update some system flags as in user mode */
1172 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK32
| VIF_MASK
)) |
1173 (eflags
& FL_UPDATE_MASK32
);
1174 if (eflags
& IF_MASK
) {
1175 env
->eflags
|= VIF_MASK
;
1176 if (env
->eflags
& VIP_MASK
) {
1178 raise_exception(EXCP0D_GPF
);
1185 /* XXX: compute only O flag */
1186 void OPPROTO
op_movb_eflags_T0(void)
1189 of
= cc_table
[CC_OP
].compute_all() & CC_O
;
1190 CC_SRC
= (T0
& (CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
)) | of
;
1193 void OPPROTO
op_movl_T0_eflags(void)
1196 eflags
= cc_table
[CC_OP
].compute_all();
1197 eflags
|= (DF
& DF_MASK
);
1198 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
);
1202 /* vm86plus version */
1204 void OPPROTO
op_movl_T0_eflags_vm(void)
1207 eflags
= cc_table
[CC_OP
].compute_all();
1208 eflags
|= (DF
& DF_MASK
);
1209 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
| IF_MASK
);
1210 if (env
->eflags
& VIF_MASK
)
1216 void OPPROTO
op_cld(void)
1221 void OPPROTO
op_std(void)
1226 void OPPROTO
op_clc(void)
1229 eflags
= cc_table
[CC_OP
].compute_all();
1234 void OPPROTO
op_stc(void)
1237 eflags
= cc_table
[CC_OP
].compute_all();
1242 void OPPROTO
op_cmc(void)
1245 eflags
= cc_table
[CC_OP
].compute_all();
1250 void OPPROTO
op_salc(void)
1253 cf
= cc_table
[CC_OP
].compute_c();
1254 EAX
= (EAX
& ~0xff) | ((-cf
) & 0xff);
1257 static int compute_all_eflags(void)
1262 static int compute_c_eflags(void)
1264 return CC_SRC
& CC_C
;
1267 static int compute_c_mul(void)
1274 static int compute_all_mul(void)
1276 int cf
, pf
, af
, zf
, sf
, of
;
1278 pf
= 0; /* undefined */
1279 af
= 0; /* undefined */
1280 zf
= 0; /* undefined */
1281 sf
= 0; /* undefined */
1283 return cf
| pf
| af
| zf
| sf
| of
;
1286 CCTable cc_table
[CC_OP_NB
] = {
1287 [CC_OP_DYNAMIC
] = { /* should never happen */ },
1289 [CC_OP_EFLAGS
] = { compute_all_eflags
, compute_c_eflags
},
1291 [CC_OP_MUL
] = { compute_all_mul
, compute_c_mul
},
1293 [CC_OP_ADDB
] = { compute_all_addb
, compute_c_addb
},
1294 [CC_OP_ADDW
] = { compute_all_addw
, compute_c_addw
},
1295 [CC_OP_ADDL
] = { compute_all_addl
, compute_c_addl
},
1297 [CC_OP_ADCB
] = { compute_all_adcb
, compute_c_adcb
},
1298 [CC_OP_ADCW
] = { compute_all_adcw
, compute_c_adcw
},
1299 [CC_OP_ADCL
] = { compute_all_adcl
, compute_c_adcl
},
1301 [CC_OP_SUBB
] = { compute_all_subb
, compute_c_subb
},
1302 [CC_OP_SUBW
] = { compute_all_subw
, compute_c_subw
},
1303 [CC_OP_SUBL
] = { compute_all_subl
, compute_c_subl
},
1305 [CC_OP_SBBB
] = { compute_all_sbbb
, compute_c_sbbb
},
1306 [CC_OP_SBBW
] = { compute_all_sbbw
, compute_c_sbbw
},
1307 [CC_OP_SBBL
] = { compute_all_sbbl
, compute_c_sbbl
},
1309 [CC_OP_LOGICB
] = { compute_all_logicb
, compute_c_logicb
},
1310 [CC_OP_LOGICW
] = { compute_all_logicw
, compute_c_logicw
},
1311 [CC_OP_LOGICL
] = { compute_all_logicl
, compute_c_logicl
},
1313 [CC_OP_INCB
] = { compute_all_incb
, compute_c_incl
},
1314 [CC_OP_INCW
] = { compute_all_incw
, compute_c_incl
},
1315 [CC_OP_INCL
] = { compute_all_incl
, compute_c_incl
},
1317 [CC_OP_DECB
] = { compute_all_decb
, compute_c_incl
},
1318 [CC_OP_DECW
] = { compute_all_decw
, compute_c_incl
},
1319 [CC_OP_DECL
] = { compute_all_decl
, compute_c_incl
},
1321 [CC_OP_SHLB
] = { compute_all_shlb
, compute_c_shlb
},
1322 [CC_OP_SHLW
] = { compute_all_shlw
, compute_c_shlw
},
1323 [CC_OP_SHLL
] = { compute_all_shll
, compute_c_shll
},
1325 [CC_OP_SARB
] = { compute_all_sarb
, compute_c_sarl
},
1326 [CC_OP_SARW
] = { compute_all_sarw
, compute_c_sarl
},
1327 [CC_OP_SARL
] = { compute_all_sarl
, compute_c_sarl
},
1330 /* floating point support. Some of the code for complicated x87
1331 functions comes from the LGPL'ed x86 emulator found in the Willows
1332 TWIN windows emulator. */
1334 #if defined(__powerpc__)
1335 extern CPU86_LDouble
copysign(CPU86_LDouble
, CPU86_LDouble
);
1337 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1338 double qemu_rint(double x
)
1340 double y
= 4503599627370496.0;
1351 #define rint qemu_rint
1356 void OPPROTO
op_flds_FT0_A0(void)
1358 #ifdef USE_FP_CONVERT
1359 FP_CONVERT
.i32
= ldl((void *)A0
);
1362 FT0
= ldfl((void *)A0
);
1366 void OPPROTO
op_fldl_FT0_A0(void)
1368 #ifdef USE_FP_CONVERT
1369 FP_CONVERT
.i64
= ldq((void *)A0
);
1372 FT0
= ldfq((void *)A0
);
1376 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1377 #ifdef USE_INT_TO_FLOAT_HELPERS
1379 void helper_fild_FT0_A0(void)
1381 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1384 void helper_fildl_FT0_A0(void)
1386 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1389 void helper_fildll_FT0_A0(void)
1391 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1394 void OPPROTO
op_fild_FT0_A0(void)
1396 helper_fild_FT0_A0();
1399 void OPPROTO
op_fildl_FT0_A0(void)
1401 helper_fildl_FT0_A0();
1404 void OPPROTO
op_fildll_FT0_A0(void)
1406 helper_fildll_FT0_A0();
1411 void OPPROTO
op_fild_FT0_A0(void)
1413 #ifdef USE_FP_CONVERT
1414 FP_CONVERT
.i32
= ldsw((void *)A0
);
1415 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1417 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1421 void OPPROTO
op_fildl_FT0_A0(void)
1423 #ifdef USE_FP_CONVERT
1424 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1425 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1427 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1431 void OPPROTO
op_fildll_FT0_A0(void)
1433 #ifdef USE_FP_CONVERT
1434 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1435 FT0
= (CPU86_LDouble
)FP_CONVERT
.i64
;
1437 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1444 void OPPROTO
op_flds_ST0_A0(void)
1447 new_fpstt
= (env
->fpstt
- 1) & 7;
1448 #ifdef USE_FP_CONVERT
1449 FP_CONVERT
.i32
= ldl((void *)A0
);
1450 env
->fpregs
[new_fpstt
] = FP_CONVERT
.f
;
1452 env
->fpregs
[new_fpstt
] = ldfl((void *)A0
);
1454 env
->fpstt
= new_fpstt
;
1455 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1458 void OPPROTO
op_fldl_ST0_A0(void)
1461 new_fpstt
= (env
->fpstt
- 1) & 7;
1462 #ifdef USE_FP_CONVERT
1463 FP_CONVERT
.i64
= ldq((void *)A0
);
1464 env
->fpregs
[new_fpstt
] = FP_CONVERT
.d
;
1466 env
->fpregs
[new_fpstt
] = ldfq((void *)A0
);
1468 env
->fpstt
= new_fpstt
;
1469 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1472 #ifdef USE_X86LDOUBLE
1473 void OPPROTO
op_fldt_ST0_A0(void)
1476 new_fpstt
= (env
->fpstt
- 1) & 7;
1477 env
->fpregs
[new_fpstt
] = *(long double *)A0
;
1478 env
->fpstt
= new_fpstt
;
1479 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1482 void OPPROTO
op_fldt_ST0_A0(void)
1484 helper_fldt_ST0_A0();
1488 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1489 #ifdef USE_INT_TO_FLOAT_HELPERS
1491 void helper_fild_ST0_A0(void)
1494 new_fpstt
= (env
->fpstt
- 1) & 7;
1495 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1496 env
->fpstt
= new_fpstt
;
1497 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1500 void helper_fildl_ST0_A0(void)
1503 new_fpstt
= (env
->fpstt
- 1) & 7;
1504 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1505 env
->fpstt
= new_fpstt
;
1506 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1509 void helper_fildll_ST0_A0(void)
1512 new_fpstt
= (env
->fpstt
- 1) & 7;
1513 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1514 env
->fpstt
= new_fpstt
;
1515 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1518 void OPPROTO
op_fild_ST0_A0(void)
1520 helper_fild_ST0_A0();
1523 void OPPROTO
op_fildl_ST0_A0(void)
1525 helper_fildl_ST0_A0();
1528 void OPPROTO
op_fildll_ST0_A0(void)
1530 helper_fildll_ST0_A0();
1535 void OPPROTO
op_fild_ST0_A0(void)
1538 new_fpstt
= (env
->fpstt
- 1) & 7;
1539 #ifdef USE_FP_CONVERT
1540 FP_CONVERT
.i32
= ldsw((void *)A0
);
1541 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1543 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1545 env
->fpstt
= new_fpstt
;
1546 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1549 void OPPROTO
op_fildl_ST0_A0(void)
1552 new_fpstt
= (env
->fpstt
- 1) & 7;
1553 #ifdef USE_FP_CONVERT
1554 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1555 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1557 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1559 env
->fpstt
= new_fpstt
;
1560 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1563 void OPPROTO
op_fildll_ST0_A0(void)
1566 new_fpstt
= (env
->fpstt
- 1) & 7;
1567 #ifdef USE_FP_CONVERT
1568 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1569 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i64
;
1571 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1573 env
->fpstt
= new_fpstt
;
1574 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1581 void OPPROTO
op_fsts_ST0_A0(void)
1583 #ifdef USE_FP_CONVERT
1584 FP_CONVERT
.f
= (float)ST0
;
1585 stfl((void *)A0
, FP_CONVERT
.f
);
1587 stfl((void *)A0
, (float)ST0
);
1591 void OPPROTO
op_fstl_ST0_A0(void)
1593 stfq((void *)A0
, (double)ST0
);
1596 #ifdef USE_X86LDOUBLE
1597 void OPPROTO
op_fstt_ST0_A0(void)
1599 *(long double *)A0
= ST0
;
1602 void OPPROTO
op_fstt_ST0_A0(void)
1604 helper_fstt_ST0_A0();
1608 void OPPROTO
op_fist_ST0_A0(void)
1610 #if defined(__sparc__) && !defined(__sparc_v9__)
1611 register CPU86_LDouble d
asm("o0");
1619 if (val
!= (int16_t)val
)
1621 stw((void *)A0
, val
);
1624 void OPPROTO
op_fistl_ST0_A0(void)
1626 #if defined(__sparc__) && !defined(__sparc_v9__)
1627 register CPU86_LDouble d
asm("o0");
1635 stl((void *)A0
, val
);
1638 void OPPROTO
op_fistll_ST0_A0(void)
1640 #if defined(__sparc__) && !defined(__sparc_v9__)
1641 register CPU86_LDouble d
asm("o0");
1649 stq((void *)A0
, val
);
1652 void OPPROTO
op_fbld_ST0_A0(void)
1654 helper_fbld_ST0_A0();
1657 void OPPROTO
op_fbst_ST0_A0(void)
1659 helper_fbst_ST0_A0();
1664 void OPPROTO
op_fpush(void)
1669 void OPPROTO
op_fpop(void)
1674 void OPPROTO
op_fdecstp(void)
1676 env
->fpstt
= (env
->fpstt
- 1) & 7;
1677 env
->fpus
&= (~0x4700);
1680 void OPPROTO
op_fincstp(void)
1682 env
->fpstt
= (env
->fpstt
+ 1) & 7;
1683 env
->fpus
&= (~0x4700);
1686 void OPPROTO
op_fmov_ST0_FT0(void)
1691 void OPPROTO
op_fmov_FT0_STN(void)
1696 void OPPROTO
op_fmov_ST0_STN(void)
1701 void OPPROTO
op_fmov_STN_ST0(void)
1706 void OPPROTO
op_fxchg_ST0_STN(void)
1714 /* FPU operations */
1716 /* XXX: handle nans */
1717 void OPPROTO
op_fcom_ST0_FT0(void)
1719 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1721 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1722 else if (ST0
== FT0
)
1723 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1727 /* XXX: handle nans */
1728 void OPPROTO
op_fucom_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_fcomi_ST0_FT0(void)
1742 eflags
= cc_table
[CC_OP
].compute_all();
1743 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1746 else if (ST0
== FT0
)
1752 /* XXX: handle nans */
1753 void OPPROTO
op_fucomi_ST0_FT0(void)
1756 eflags
= cc_table
[CC_OP
].compute_all();
1757 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1760 else if (ST0
== FT0
)
1766 void OPPROTO
op_fadd_ST0_FT0(void)
1771 void OPPROTO
op_fmul_ST0_FT0(void)
1776 void OPPROTO
op_fsub_ST0_FT0(void)
1781 void OPPROTO
op_fsubr_ST0_FT0(void)
1786 void OPPROTO
op_fdiv_ST0_FT0(void)
1791 void OPPROTO
op_fdivr_ST0_FT0(void)
1796 /* fp operations between STN and ST0 */
1798 void OPPROTO
op_fadd_STN_ST0(void)
1803 void OPPROTO
op_fmul_STN_ST0(void)
1808 void OPPROTO
op_fsub_STN_ST0(void)
1813 void OPPROTO
op_fsubr_STN_ST0(void)
1820 void OPPROTO
op_fdiv_STN_ST0(void)
1825 void OPPROTO
op_fdivr_STN_ST0(void)
1832 /* misc FPU operations */
1833 void OPPROTO
op_fchs_ST0(void)
1838 void OPPROTO
op_fabs_ST0(void)
1843 void OPPROTO
op_fxam_ST0(void)
1848 void OPPROTO
op_fld1_ST0(void)
1853 void OPPROTO
op_fldl2t_ST0(void)
1858 void OPPROTO
op_fldl2e_ST0(void)
1863 void OPPROTO
op_fldpi_ST0(void)
1868 void OPPROTO
op_fldlg2_ST0(void)
1873 void OPPROTO
op_fldln2_ST0(void)
1878 void OPPROTO
op_fldz_ST0(void)
1883 void OPPROTO
op_fldz_FT0(void)
1888 /* associated heplers to reduce generated code length and to simplify
1889 relocation (FP constants are usually stored in .rodata section) */
1891 void OPPROTO
op_f2xm1(void)
1896 void OPPROTO
op_fyl2x(void)
1901 void OPPROTO
op_fptan(void)
1906 void OPPROTO
op_fpatan(void)
1911 void OPPROTO
op_fxtract(void)
1916 void OPPROTO
op_fprem1(void)
1922 void OPPROTO
op_fprem(void)
1927 void OPPROTO
op_fyl2xp1(void)
1932 void OPPROTO
op_fsqrt(void)
1937 void OPPROTO
op_fsincos(void)
1942 void OPPROTO
op_frndint(void)
1947 void OPPROTO
op_fscale(void)
1952 void OPPROTO
op_fsin(void)
1957 void OPPROTO
op_fcos(void)
1962 void OPPROTO
op_fnstsw_A0(void)
1965 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1966 stw((void *)A0
, fpus
);
1969 void OPPROTO
op_fnstsw_EAX(void)
1972 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1973 EAX
= (EAX
& 0xffff0000) | fpus
;
1976 void OPPROTO
op_fnstcw_A0(void)
1978 stw((void *)A0
, env
->fpuc
);
1981 void OPPROTO
op_fldcw_A0(void)
1984 env
->fpuc
= lduw((void *)A0
);
1985 /* set rounding mode */
1986 switch(env
->fpuc
& RC_MASK
) {
1989 rnd_type
= FE_TONEAREST
;
1992 rnd_type
= FE_DOWNWARD
;
1995 rnd_type
= FE_UPWARD
;
1998 rnd_type
= FE_TOWARDZERO
;
2001 fesetround(rnd_type
);
2004 void OPPROTO
op_fclex(void)
2006 env
->fpus
&= 0x7f00;
2009 void OPPROTO
op_fninit(void)
2024 void OPPROTO
op_fnstenv_A0(void)
2026 helper_fstenv((uint8_t *)A0
, PARAM1
);
2029 void OPPROTO
op_fldenv_A0(void)
2031 helper_fldenv((uint8_t *)A0
, PARAM1
);
2034 void OPPROTO
op_fnsave_A0(void)
2036 helper_fsave((uint8_t *)A0
, PARAM1
);
2039 void OPPROTO
op_frstor_A0(void)
2041 helper_frstor((uint8_t *)A0
, PARAM1
);
2044 /* threading support */
2045 void OPPROTO
op_lock(void)
2050 void OPPROTO
op_unlock(void)