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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
21 /* XXX: must use this define because the soft mmu macros have huge
22 register constraints so they cannot be used in any C code. gcc 3.3
23 does not seem to be able to handle some constraints in rol
24 operations, so we disable it. */
25 #if !(__GNUC__ == 3 && __GNUC_MINOR__ == 3)
30 /* n must be a constant to be efficient */
31 static inline int lshift(int x
, int n
)
39 /* we define the various pieces of code used by the JIT */
43 #include "opreg_template.h"
49 #include "opreg_template.h"
55 #include "opreg_template.h"
61 #include "opreg_template.h"
67 #include "opreg_template.h"
73 #include "opreg_template.h"
79 #include "opreg_template.h"
85 #include "opreg_template.h"
89 /* operations with flags */
91 /* update flags with T0 and T1 (add/sub case) */
92 void OPPROTO
op_update2_cc(void)
98 /* update flags with T0 (logic operation case) */
99 void OPPROTO
op_update1_cc(void)
104 void OPPROTO
op_update_neg_cc(void)
110 void OPPROTO
op_cmpl_T0_T1_cc(void)
116 void OPPROTO
op_update_inc_cc(void)
118 CC_SRC
= cc_table
[CC_OP
].compute_c();
122 void OPPROTO
op_testl_T0_T1_cc(void)
127 /* operations without flags */
129 void OPPROTO
op_addl_T0_T1(void)
134 void OPPROTO
op_orl_T0_T1(void)
139 void OPPROTO
op_andl_T0_T1(void)
144 void OPPROTO
op_subl_T0_T1(void)
149 void OPPROTO
op_xorl_T0_T1(void)
154 void OPPROTO
op_negl_T0(void)
159 void OPPROTO
op_incl_T0(void)
164 void OPPROTO
op_decl_T0(void)
169 void OPPROTO
op_notl_T0(void)
174 void OPPROTO
op_bswapl_T0(void)
179 /* multiply/divide */
181 /* XXX: add eflags optimizations */
182 /* XXX: add non P4 style flags */
184 void OPPROTO
op_mulb_AL_T0(void)
187 res
= (uint8_t)EAX
* (uint8_t)T0
;
188 EAX
= (EAX
& 0xffff0000) | res
;
190 CC_SRC
= (res
& 0xff00);
193 void OPPROTO
op_imulb_AL_T0(void)
196 res
= (int8_t)EAX
* (int8_t)T0
;
197 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
199 CC_SRC
= (res
!= (int8_t)res
);
202 void OPPROTO
op_mulw_AX_T0(void)
205 res
= (uint16_t)EAX
* (uint16_t)T0
;
206 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
207 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
212 void OPPROTO
op_imulw_AX_T0(void)
215 res
= (int16_t)EAX
* (int16_t)T0
;
216 EAX
= (EAX
& 0xffff0000) | (res
& 0xffff);
217 EDX
= (EDX
& 0xffff0000) | ((res
>> 16) & 0xffff);
219 CC_SRC
= (res
!= (int16_t)res
);
222 void OPPROTO
op_mull_EAX_T0(void)
225 res
= (uint64_t)((uint32_t)EAX
) * (uint64_t)((uint32_t)T0
);
232 void OPPROTO
op_imull_EAX_T0(void)
235 res
= (int64_t)((int32_t)EAX
) * (int64_t)((int32_t)T0
);
239 CC_SRC
= (res
!= (int32_t)res
);
242 void OPPROTO
op_imulw_T0_T1(void)
245 res
= (int16_t)T0
* (int16_t)T1
;
248 CC_SRC
= (res
!= (int16_t)res
);
251 void OPPROTO
op_imull_T0_T1(void)
254 res
= (int64_t)((int32_t)T0
) * (int64_t)((int32_t)T1
);
257 CC_SRC
= (res
!= (int32_t)res
);
260 /* division, flags are undefined */
261 /* XXX: add exceptions for overflow */
263 void OPPROTO
op_divb_AL_T0(void)
265 unsigned int num
, den
, q
, r
;
267 num
= (EAX
& 0xffff);
271 raise_exception(EXCP00_DIVZ
);
273 q
= (num
/ den
) & 0xff;
274 r
= (num
% den
) & 0xff;
275 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
278 void OPPROTO
op_idivb_AL_T0(void)
286 raise_exception(EXCP00_DIVZ
);
288 q
= (num
/ den
) & 0xff;
289 r
= (num
% den
) & 0xff;
290 EAX
= (EAX
& 0xffff0000) | (r
<< 8) | q
;
293 void OPPROTO
op_divw_AX_T0(void)
295 unsigned int num
, den
, q
, r
;
297 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
301 raise_exception(EXCP00_DIVZ
);
303 q
= (num
/ den
) & 0xffff;
304 r
= (num
% den
) & 0xffff;
305 EAX
= (EAX
& 0xffff0000) | q
;
306 EDX
= (EDX
& 0xffff0000) | r
;
309 void OPPROTO
op_idivw_AX_T0(void)
313 num
= (EAX
& 0xffff) | ((EDX
& 0xffff) << 16);
317 raise_exception(EXCP00_DIVZ
);
319 q
= (num
/ den
) & 0xffff;
320 r
= (num
% den
) & 0xffff;
321 EAX
= (EAX
& 0xffff0000) | q
;
322 EDX
= (EDX
& 0xffff0000) | r
;
325 void OPPROTO
op_divl_EAX_T0(void)
327 helper_divl_EAX_T0(PARAM1
);
330 void OPPROTO
op_idivl_EAX_T0(void)
332 helper_idivl_EAX_T0(PARAM1
);
335 /* constant load & misc op */
337 void OPPROTO
op_movl_T0_im(void)
342 void OPPROTO
op_addl_T0_im(void)
347 void OPPROTO
op_andl_T0_ffff(void)
352 void OPPROTO
op_andl_T0_im(void)
357 void OPPROTO
op_movl_T0_T1(void)
362 void OPPROTO
op_movl_T1_im(void)
367 void OPPROTO
op_addl_T1_im(void)
372 void OPPROTO
op_movl_T1_A0(void)
377 void OPPROTO
op_movl_A0_im(void)
382 void OPPROTO
op_addl_A0_im(void)
387 void OPPROTO
op_addl_A0_AL(void)
392 void OPPROTO
op_andl_A0_ffff(void)
399 #define MEMSUFFIX _raw
402 #if !defined(CONFIG_USER_ONLY)
403 #define MEMSUFFIX _kernel
406 #define MEMSUFFIX _user
410 /* used for bit operations */
412 void OPPROTO
op_add_bitw_A0_T1(void)
414 A0
+= ((int16_t)T1
>> 4) << 1;
417 void OPPROTO
op_add_bitl_A0_T1(void)
419 A0
+= ((int32_t)T1
>> 5) << 2;
424 void OPPROTO
op_jmp_T0(void)
429 void OPPROTO
op_jmp_im(void)
434 void OPPROTO
op_hlt(void)
436 env
->exception_index
= EXCP_HLT
;
440 void OPPROTO
op_debug(void)
442 env
->exception_index
= EXCP_DEBUG
;
446 void OPPROTO
op_raise_interrupt(void)
449 unsigned int next_eip
;
452 raise_interrupt(intno
, 1, 0, next_eip
);
455 void OPPROTO
op_raise_exception(void)
458 exception_index
= PARAM1
;
459 raise_exception(exception_index
);
462 void OPPROTO
op_into(void)
465 eflags
= cc_table
[CC_OP
].compute_all();
467 raise_interrupt(EXCP04_INTO
, 1, 0, PARAM1
);
472 void OPPROTO
op_cli(void)
474 env
->eflags
&= ~IF_MASK
;
477 void OPPROTO
op_sti(void)
479 env
->eflags
|= IF_MASK
;
482 void OPPROTO
op_set_inhibit_irq(void)
484 env
->hflags
|= HF_INHIBIT_IRQ_MASK
;
487 void OPPROTO
op_reset_inhibit_irq(void)
489 env
->hflags
&= ~HF_INHIBIT_IRQ_MASK
;
493 /* vm86plus instructions */
494 void OPPROTO
op_cli_vm(void)
496 env
->eflags
&= ~VIF_MASK
;
499 void OPPROTO
op_sti_vm(void)
501 env
->eflags
|= VIF_MASK
;
502 if (env
->eflags
& VIP_MASK
) {
504 raise_exception(EXCP0D_GPF
);
510 void OPPROTO
op_boundw(void)
513 low
= ldsw((uint8_t *)A0
);
514 high
= ldsw((uint8_t *)A0
+ 2);
516 if (v
< low
|| v
> high
) {
518 raise_exception(EXCP05_BOUND
);
523 void OPPROTO
op_boundl(void)
526 low
= ldl((uint8_t *)A0
);
527 high
= ldl((uint8_t *)A0
+ 4);
529 if (v
< low
|| v
> high
) {
531 raise_exception(EXCP05_BOUND
);
536 void OPPROTO
op_cmpxchg8b(void)
541 void OPPROTO
op_jmp(void)
543 JUMP_TB(op_jmp
, PARAM1
, 0, PARAM2
);
546 void OPPROTO
op_movl_T0_0(void)
551 void OPPROTO
op_exit_tb(void)
556 /* multiple size ops */
561 #include "ops_template.h"
565 #include "ops_template.h"
569 #include "ops_template.h"
574 void OPPROTO
op_movsbl_T0_T0(void)
579 void OPPROTO
op_movzbl_T0_T0(void)
584 void OPPROTO
op_movswl_T0_T0(void)
589 void OPPROTO
op_movzwl_T0_T0(void)
594 void OPPROTO
op_movswl_EAX_AX(void)
599 void OPPROTO
op_movsbw_AX_AL(void)
601 EAX
= (EAX
& 0xffff0000) | ((int8_t)EAX
& 0xffff);
604 void OPPROTO
op_movslq_EDX_EAX(void)
606 EDX
= (int32_t)EAX
>> 31;
609 void OPPROTO
op_movswl_DX_AX(void)
611 EDX
= (EDX
& 0xffff0000) | (((int16_t)EAX
>> 15) & 0xffff);
614 /* string ops helpers */
616 void OPPROTO
op_addl_ESI_T0(void)
621 void OPPROTO
op_addw_ESI_T0(void)
623 ESI
= (ESI
& ~0xffff) | ((ESI
+ T0
) & 0xffff);
626 void OPPROTO
op_addl_EDI_T0(void)
631 void OPPROTO
op_addw_EDI_T0(void)
633 EDI
= (EDI
& ~0xffff) | ((EDI
+ T0
) & 0xffff);
636 void OPPROTO
op_decl_ECX(void)
641 void OPPROTO
op_decw_ECX(void)
643 ECX
= (ECX
& ~0xffff) | ((ECX
- 1) & 0xffff);
648 void op_addl_A0_SS(void)
650 A0
+= (long)env
->segs
[R_SS
].base
;
653 void op_subl_A0_2(void)
658 void op_subl_A0_4(void)
663 void op_addl_ESP_4(void)
668 void op_addl_ESP_2(void)
673 void op_addw_ESP_4(void)
675 ESP
= (ESP
& ~0xffff) | ((ESP
+ 4) & 0xffff);
678 void op_addw_ESP_2(void)
680 ESP
= (ESP
& ~0xffff) | ((ESP
+ 2) & 0xffff);
683 void op_addl_ESP_im(void)
688 void op_addw_ESP_im(void)
690 ESP
= (ESP
& ~0xffff) | ((ESP
+ PARAM1
) & 0xffff);
693 void OPPROTO
op_rdtsc(void)
698 void OPPROTO
op_cpuid(void)
703 void OPPROTO
op_sysenter(void)
708 void OPPROTO
op_sysexit(void)
713 void OPPROTO
op_rdmsr(void)
718 void OPPROTO
op_wrmsr(void)
726 void OPPROTO
op_aam(void)
733 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
737 void OPPROTO
op_aad(void)
742 ah
= (EAX
>> 8) & 0xff;
743 al
= ((ah
* base
) + al
) & 0xff;
744 EAX
= (EAX
& ~0xffff) | al
;
748 void OPPROTO
op_aaa(void)
754 eflags
= cc_table
[CC_OP
].compute_all();
757 ah
= (EAX
>> 8) & 0xff;
759 icarry
= (al
> 0xf9);
760 if (((al
& 0x0f) > 9 ) || af
) {
761 al
= (al
+ 6) & 0x0f;
762 ah
= (ah
+ 1 + icarry
) & 0xff;
763 eflags
|= CC_C
| CC_A
;
765 eflags
&= ~(CC_C
| CC_A
);
768 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
772 void OPPROTO
op_aas(void)
778 eflags
= cc_table
[CC_OP
].compute_all();
781 ah
= (EAX
>> 8) & 0xff;
784 if (((al
& 0x0f) > 9 ) || af
) {
785 al
= (al
- 6) & 0x0f;
786 ah
= (ah
- 1 - icarry
) & 0xff;
787 eflags
|= CC_C
| CC_A
;
789 eflags
&= ~(CC_C
| CC_A
);
792 EAX
= (EAX
& ~0xffff) | al
| (ah
<< 8);
796 void OPPROTO
op_daa(void)
801 eflags
= cc_table
[CC_OP
].compute_all();
807 if (((al
& 0x0f) > 9 ) || af
) {
808 al
= (al
+ 6) & 0xff;
811 if ((al
> 0x9f) || cf
) {
812 al
= (al
+ 0x60) & 0xff;
815 EAX
= (EAX
& ~0xff) | al
;
816 /* well, speed is not an issue here, so we compute the flags by hand */
817 eflags
|= (al
== 0) << 6; /* zf */
818 eflags
|= parity_table
[al
]; /* pf */
819 eflags
|= (al
& 0x80); /* sf */
823 void OPPROTO
op_das(void)
828 eflags
= cc_table
[CC_OP
].compute_all();
835 if (((al
& 0x0f) > 9 ) || af
) {
839 al
= (al
- 6) & 0xff;
841 if ((al1
> 0x99) || cf
) {
842 al
= (al
- 0x60) & 0xff;
845 EAX
= (EAX
& ~0xff) | al
;
846 /* well, speed is not an issue here, so we compute the flags by hand */
847 eflags
|= (al
== 0) << 6; /* zf */
848 eflags
|= parity_table
[al
]; /* pf */
849 eflags
|= (al
& 0x80); /* sf */
853 /* segment handling */
855 /* never use it with R_CS */
856 void OPPROTO
op_movl_seg_T0(void)
858 load_seg(PARAM1
, T0
);
861 /* faster VM86 version */
862 void OPPROTO
op_movl_seg_T0_vm(void)
867 selector
= T0
& 0xffff;
868 /* env->segs[] access */
869 sc
= (SegmentCache
*)((char *)env
+ PARAM1
);
870 sc
->selector
= selector
;
871 sc
->base
= (void *)(selector
<< 4);
874 void OPPROTO
op_movl_T0_seg(void)
876 T0
= env
->segs
[PARAM1
].selector
;
879 void OPPROTO
op_movl_A0_seg(void)
881 A0
= *(unsigned long *)((char *)env
+ PARAM1
);
884 void OPPROTO
op_addl_A0_seg(void)
886 A0
+= *(unsigned long *)((char *)env
+ PARAM1
);
889 void OPPROTO
op_lsl(void)
894 void OPPROTO
op_lar(void)
899 void OPPROTO
op_verr(void)
904 void OPPROTO
op_verw(void)
909 void OPPROTO
op_arpl(void)
911 if ((T0
& 3) < (T1
& 3)) {
912 /* XXX: emulate bug or 0xff3f0000 oring as in bochs ? */
913 T0
= (T0
& ~3) | (T1
& 3);
921 void OPPROTO
op_arpl_update(void)
924 eflags
= cc_table
[CC_OP
].compute_all();
925 CC_SRC
= (eflags
& ~CC_Z
) | T1
;
928 /* T0: segment, T1:eip */
929 void OPPROTO
op_ljmp_protected_T0_T1(void)
931 helper_ljmp_protected_T0_T1(PARAM1
);
934 void OPPROTO
op_lcall_real_T0_T1(void)
936 helper_lcall_real_T0_T1(PARAM1
, PARAM2
);
939 void OPPROTO
op_lcall_protected_T0_T1(void)
941 helper_lcall_protected_T0_T1(PARAM1
, PARAM2
);
944 void OPPROTO
op_iret_real(void)
946 helper_iret_real(PARAM1
);
949 void OPPROTO
op_iret_protected(void)
951 helper_iret_protected(PARAM1
, PARAM2
);
954 void OPPROTO
op_lret_protected(void)
956 helper_lret_protected(PARAM1
, PARAM2
);
959 void OPPROTO
op_lldt_T0(void)
964 void OPPROTO
op_ltr_T0(void)
969 /* CR registers access */
970 void OPPROTO
op_movl_crN_T0(void)
972 helper_movl_crN_T0(PARAM1
);
975 /* DR registers access */
976 void OPPROTO
op_movl_drN_T0(void)
978 helper_movl_drN_T0(PARAM1
);
981 void OPPROTO
op_lmsw_T0(void)
983 /* only 4 lower bits of CR0 are modified. PE cannot be set to zero
984 if already set to one. */
985 T0
= (env
->cr
[0] & ~0xe) | (T0
& 0xf);
986 helper_movl_crN_T0(0);
989 void OPPROTO
op_invlpg_A0(void)
994 void OPPROTO
op_movl_T0_env(void)
996 T0
= *(uint32_t *)((char *)env
+ PARAM1
);
999 void OPPROTO
op_movl_env_T0(void)
1001 *(uint32_t *)((char *)env
+ PARAM1
) = T0
;
1004 void OPPROTO
op_movl_env_T1(void)
1006 *(uint32_t *)((char *)env
+ PARAM1
) = T1
;
1009 void OPPROTO
op_clts(void)
1011 env
->cr
[0] &= ~CR0_TS_MASK
;
1012 env
->hflags
&= ~HF_TS_MASK
;
1015 /* flags handling */
1017 /* slow jumps cases : in order to avoid calling a function with a
1018 pointer (which can generate a stack frame on PowerPC), we use
1019 op_setcc to set T0 and then call op_jcc. */
1020 void OPPROTO
op_jcc(void)
1023 JUMP_TB(op_jcc
, PARAM1
, 0, PARAM2
);
1025 JUMP_TB(op_jcc
, PARAM1
, 1, PARAM3
);
1029 void OPPROTO
op_jcc_im(void)
1038 /* slow set cases (compute x86 flags) */
1039 void OPPROTO
op_seto_T0_cc(void)
1042 eflags
= cc_table
[CC_OP
].compute_all();
1043 T0
= (eflags
>> 11) & 1;
1046 void OPPROTO
op_setb_T0_cc(void)
1048 T0
= cc_table
[CC_OP
].compute_c();
1051 void OPPROTO
op_setz_T0_cc(void)
1054 eflags
= cc_table
[CC_OP
].compute_all();
1055 T0
= (eflags
>> 6) & 1;
1058 void OPPROTO
op_setbe_T0_cc(void)
1061 eflags
= cc_table
[CC_OP
].compute_all();
1062 T0
= (eflags
& (CC_Z
| CC_C
)) != 0;
1065 void OPPROTO
op_sets_T0_cc(void)
1068 eflags
= cc_table
[CC_OP
].compute_all();
1069 T0
= (eflags
>> 7) & 1;
1072 void OPPROTO
op_setp_T0_cc(void)
1075 eflags
= cc_table
[CC_OP
].compute_all();
1076 T0
= (eflags
>> 2) & 1;
1079 void OPPROTO
op_setl_T0_cc(void)
1082 eflags
= cc_table
[CC_OP
].compute_all();
1083 T0
= ((eflags
^ (eflags
>> 4)) >> 7) & 1;
1086 void OPPROTO
op_setle_T0_cc(void)
1089 eflags
= cc_table
[CC_OP
].compute_all();
1090 T0
= (((eflags
^ (eflags
>> 4)) & 0x80) || (eflags
& CC_Z
)) != 0;
1093 void OPPROTO
op_xor_T0_1(void)
1098 void OPPROTO
op_set_cc_op(void)
1103 /* XXX: clear VIF/VIP in all ops ? */
1105 void OPPROTO
op_movl_eflags_T0(void)
1107 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
));
1110 void OPPROTO
op_movw_eflags_T0(void)
1112 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
) & 0xffff);
1115 void OPPROTO
op_movl_eflags_T0_io(void)
1117 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
| IF_MASK
));
1120 void OPPROTO
op_movw_eflags_T0_io(void)
1122 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
| IF_MASK
) & 0xffff);
1125 void OPPROTO
op_movl_eflags_T0_cpl0(void)
1127 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
| IF_MASK
| IOPL_MASK
));
1130 void OPPROTO
op_movw_eflags_T0_cpl0(void)
1132 load_eflags(T0
, (TF_MASK
| AC_MASK
| ID_MASK
| NT_MASK
| IF_MASK
| IOPL_MASK
) & 0xffff);
1136 /* vm86plus version */
1137 void OPPROTO
op_movw_eflags_T0_vm(void)
1141 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1142 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1143 /* we also update some system flags as in user mode */
1144 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK16
| VIF_MASK
)) |
1145 (eflags
& FL_UPDATE_MASK16
);
1146 if (eflags
& IF_MASK
) {
1147 env
->eflags
|= VIF_MASK
;
1148 if (env
->eflags
& VIP_MASK
) {
1150 raise_exception(EXCP0D_GPF
);
1156 void OPPROTO
op_movl_eflags_T0_vm(void)
1160 CC_SRC
= eflags
& (CC_O
| CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
);
1161 DF
= 1 - (2 * ((eflags
>> 10) & 1));
1162 /* we also update some system flags as in user mode */
1163 env
->eflags
= (env
->eflags
& ~(FL_UPDATE_MASK32
| VIF_MASK
)) |
1164 (eflags
& FL_UPDATE_MASK32
);
1165 if (eflags
& IF_MASK
) {
1166 env
->eflags
|= VIF_MASK
;
1167 if (env
->eflags
& VIP_MASK
) {
1169 raise_exception(EXCP0D_GPF
);
1176 /* XXX: compute only O flag */
1177 void OPPROTO
op_movb_eflags_T0(void)
1180 of
= cc_table
[CC_OP
].compute_all() & CC_O
;
1181 CC_SRC
= (T0
& (CC_S
| CC_Z
| CC_A
| CC_P
| CC_C
)) | of
;
1184 void OPPROTO
op_movl_T0_eflags(void)
1187 eflags
= cc_table
[CC_OP
].compute_all();
1188 eflags
|= (DF
& DF_MASK
);
1189 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
);
1193 /* vm86plus version */
1195 void OPPROTO
op_movl_T0_eflags_vm(void)
1198 eflags
= cc_table
[CC_OP
].compute_all();
1199 eflags
|= (DF
& DF_MASK
);
1200 eflags
|= env
->eflags
& ~(VM_MASK
| RF_MASK
| IF_MASK
);
1201 if (env
->eflags
& VIF_MASK
)
1207 void OPPROTO
op_cld(void)
1212 void OPPROTO
op_std(void)
1217 void OPPROTO
op_clc(void)
1220 eflags
= cc_table
[CC_OP
].compute_all();
1225 void OPPROTO
op_stc(void)
1228 eflags
= cc_table
[CC_OP
].compute_all();
1233 void OPPROTO
op_cmc(void)
1236 eflags
= cc_table
[CC_OP
].compute_all();
1241 void OPPROTO
op_salc(void)
1244 cf
= cc_table
[CC_OP
].compute_c();
1245 EAX
= (EAX
& ~0xff) | ((-cf
) & 0xff);
1248 static int compute_all_eflags(void)
1253 static int compute_c_eflags(void)
1255 return CC_SRC
& CC_C
;
1258 CCTable cc_table
[CC_OP_NB
] = {
1259 [CC_OP_DYNAMIC
] = { /* should never happen */ },
1261 [CC_OP_EFLAGS
] = { compute_all_eflags
, compute_c_eflags
},
1263 [CC_OP_MULB
] = { compute_all_mulb
, compute_c_mull
},
1264 [CC_OP_MULW
] = { compute_all_mulw
, compute_c_mull
},
1265 [CC_OP_MULL
] = { compute_all_mull
, compute_c_mull
},
1267 [CC_OP_ADDB
] = { compute_all_addb
, compute_c_addb
},
1268 [CC_OP_ADDW
] = { compute_all_addw
, compute_c_addw
},
1269 [CC_OP_ADDL
] = { compute_all_addl
, compute_c_addl
},
1271 [CC_OP_ADCB
] = { compute_all_adcb
, compute_c_adcb
},
1272 [CC_OP_ADCW
] = { compute_all_adcw
, compute_c_adcw
},
1273 [CC_OP_ADCL
] = { compute_all_adcl
, compute_c_adcl
},
1275 [CC_OP_SUBB
] = { compute_all_subb
, compute_c_subb
},
1276 [CC_OP_SUBW
] = { compute_all_subw
, compute_c_subw
},
1277 [CC_OP_SUBL
] = { compute_all_subl
, compute_c_subl
},
1279 [CC_OP_SBBB
] = { compute_all_sbbb
, compute_c_sbbb
},
1280 [CC_OP_SBBW
] = { compute_all_sbbw
, compute_c_sbbw
},
1281 [CC_OP_SBBL
] = { compute_all_sbbl
, compute_c_sbbl
},
1283 [CC_OP_LOGICB
] = { compute_all_logicb
, compute_c_logicb
},
1284 [CC_OP_LOGICW
] = { compute_all_logicw
, compute_c_logicw
},
1285 [CC_OP_LOGICL
] = { compute_all_logicl
, compute_c_logicl
},
1287 [CC_OP_INCB
] = { compute_all_incb
, compute_c_incl
},
1288 [CC_OP_INCW
] = { compute_all_incw
, compute_c_incl
},
1289 [CC_OP_INCL
] = { compute_all_incl
, compute_c_incl
},
1291 [CC_OP_DECB
] = { compute_all_decb
, compute_c_incl
},
1292 [CC_OP_DECW
] = { compute_all_decw
, compute_c_incl
},
1293 [CC_OP_DECL
] = { compute_all_decl
, compute_c_incl
},
1295 [CC_OP_SHLB
] = { compute_all_shlb
, compute_c_shlb
},
1296 [CC_OP_SHLW
] = { compute_all_shlw
, compute_c_shlw
},
1297 [CC_OP_SHLL
] = { compute_all_shll
, compute_c_shll
},
1299 [CC_OP_SARB
] = { compute_all_sarb
, compute_c_sarl
},
1300 [CC_OP_SARW
] = { compute_all_sarw
, compute_c_sarl
},
1301 [CC_OP_SARL
] = { compute_all_sarl
, compute_c_sarl
},
1304 /* floating point support. Some of the code for complicated x87
1305 functions comes from the LGPL'ed x86 emulator found in the Willows
1306 TWIN windows emulator. */
1308 #if defined(__powerpc__)
1309 extern CPU86_LDouble
copysign(CPU86_LDouble
, CPU86_LDouble
);
1311 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1312 double qemu_rint(double x
)
1314 double y
= 4503599627370496.0;
1325 #define rint qemu_rint
1330 void OPPROTO
op_flds_FT0_A0(void)
1332 #ifdef USE_FP_CONVERT
1333 FP_CONVERT
.i32
= ldl((void *)A0
);
1336 FT0
= ldfl((void *)A0
);
1340 void OPPROTO
op_fldl_FT0_A0(void)
1342 #ifdef USE_FP_CONVERT
1343 FP_CONVERT
.i64
= ldq((void *)A0
);
1346 FT0
= ldfq((void *)A0
);
1350 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1351 #ifdef USE_INT_TO_FLOAT_HELPERS
1353 void helper_fild_FT0_A0(void)
1355 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1358 void helper_fildl_FT0_A0(void)
1360 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1363 void helper_fildll_FT0_A0(void)
1365 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1368 void OPPROTO
op_fild_FT0_A0(void)
1370 helper_fild_FT0_A0();
1373 void OPPROTO
op_fildl_FT0_A0(void)
1375 helper_fildl_FT0_A0();
1378 void OPPROTO
op_fildll_FT0_A0(void)
1380 helper_fildll_FT0_A0();
1385 void OPPROTO
op_fild_FT0_A0(void)
1387 #ifdef USE_FP_CONVERT
1388 FP_CONVERT
.i32
= ldsw((void *)A0
);
1389 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1391 FT0
= (CPU86_LDouble
)ldsw((void *)A0
);
1395 void OPPROTO
op_fildl_FT0_A0(void)
1397 #ifdef USE_FP_CONVERT
1398 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1399 FT0
= (CPU86_LDouble
)FP_CONVERT
.i32
;
1401 FT0
= (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1405 void OPPROTO
op_fildll_FT0_A0(void)
1407 #ifdef USE_FP_CONVERT
1408 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1409 FT0
= (CPU86_LDouble
)FP_CONVERT
.i64
;
1411 FT0
= (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1418 void OPPROTO
op_flds_ST0_A0(void)
1421 new_fpstt
= (env
->fpstt
- 1) & 7;
1422 #ifdef USE_FP_CONVERT
1423 FP_CONVERT
.i32
= ldl((void *)A0
);
1424 env
->fpregs
[new_fpstt
] = FP_CONVERT
.f
;
1426 env
->fpregs
[new_fpstt
] = ldfl((void *)A0
);
1428 env
->fpstt
= new_fpstt
;
1429 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1432 void OPPROTO
op_fldl_ST0_A0(void)
1435 new_fpstt
= (env
->fpstt
- 1) & 7;
1436 #ifdef USE_FP_CONVERT
1437 FP_CONVERT
.i64
= ldq((void *)A0
);
1438 env
->fpregs
[new_fpstt
] = FP_CONVERT
.d
;
1440 env
->fpregs
[new_fpstt
] = ldfq((void *)A0
);
1442 env
->fpstt
= new_fpstt
;
1443 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1446 void OPPROTO
op_fldt_ST0_A0(void)
1448 helper_fldt_ST0_A0();
1451 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1452 #ifdef USE_INT_TO_FLOAT_HELPERS
1454 void helper_fild_ST0_A0(void)
1457 new_fpstt
= (env
->fpstt
- 1) & 7;
1458 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1459 env
->fpstt
= new_fpstt
;
1460 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1463 void helper_fildl_ST0_A0(void)
1466 new_fpstt
= (env
->fpstt
- 1) & 7;
1467 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1468 env
->fpstt
= new_fpstt
;
1469 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1472 void helper_fildll_ST0_A0(void)
1475 new_fpstt
= (env
->fpstt
- 1) & 7;
1476 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1477 env
->fpstt
= new_fpstt
;
1478 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1481 void OPPROTO
op_fild_ST0_A0(void)
1483 helper_fild_ST0_A0();
1486 void OPPROTO
op_fildl_ST0_A0(void)
1488 helper_fildl_ST0_A0();
1491 void OPPROTO
op_fildll_ST0_A0(void)
1493 helper_fildll_ST0_A0();
1498 void OPPROTO
op_fild_ST0_A0(void)
1501 new_fpstt
= (env
->fpstt
- 1) & 7;
1502 #ifdef USE_FP_CONVERT
1503 FP_CONVERT
.i32
= ldsw((void *)A0
);
1504 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1506 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)ldsw((void *)A0
);
1508 env
->fpstt
= new_fpstt
;
1509 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1512 void OPPROTO
op_fildl_ST0_A0(void)
1515 new_fpstt
= (env
->fpstt
- 1) & 7;
1516 #ifdef USE_FP_CONVERT
1517 FP_CONVERT
.i32
= (int32_t) ldl((void *)A0
);
1518 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i32
;
1520 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int32_t)ldl((void *)A0
));
1522 env
->fpstt
= new_fpstt
;
1523 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1526 void OPPROTO
op_fildll_ST0_A0(void)
1529 new_fpstt
= (env
->fpstt
- 1) & 7;
1530 #ifdef USE_FP_CONVERT
1531 FP_CONVERT
.i64
= (int64_t) ldq((void *)A0
);
1532 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)FP_CONVERT
.i64
;
1534 env
->fpregs
[new_fpstt
] = (CPU86_LDouble
)((int64_t)ldq((void *)A0
));
1536 env
->fpstt
= new_fpstt
;
1537 env
->fptags
[new_fpstt
] = 0; /* validate stack entry */
1544 void OPPROTO
op_fsts_ST0_A0(void)
1546 #ifdef USE_FP_CONVERT
1547 FP_CONVERT
.f
= (float)ST0
;
1548 stfl((void *)A0
, FP_CONVERT
.f
);
1550 stfl((void *)A0
, (float)ST0
);
1554 void OPPROTO
op_fstl_ST0_A0(void)
1556 stfq((void *)A0
, (double)ST0
);
1559 void OPPROTO
op_fstt_ST0_A0(void)
1561 helper_fstt_ST0_A0();
1564 void OPPROTO
op_fist_ST0_A0(void)
1566 #if defined(__sparc__) && !defined(__sparc_v9__)
1567 register CPU86_LDouble d
asm("o0");
1575 if (val
!= (int16_t)val
)
1577 stw((void *)A0
, val
);
1580 void OPPROTO
op_fistl_ST0_A0(void)
1582 #if defined(__sparc__) && !defined(__sparc_v9__)
1583 register CPU86_LDouble d
asm("o0");
1591 stl((void *)A0
, val
);
1594 void OPPROTO
op_fistll_ST0_A0(void)
1596 #if defined(__sparc__) && !defined(__sparc_v9__)
1597 register CPU86_LDouble d
asm("o0");
1605 stq((void *)A0
, val
);
1608 void OPPROTO
op_fbld_ST0_A0(void)
1610 helper_fbld_ST0_A0();
1613 void OPPROTO
op_fbst_ST0_A0(void)
1615 helper_fbst_ST0_A0();
1620 void OPPROTO
op_fpush(void)
1625 void OPPROTO
op_fpop(void)
1630 void OPPROTO
op_fdecstp(void)
1632 env
->fpstt
= (env
->fpstt
- 1) & 7;
1633 env
->fpus
&= (~0x4700);
1636 void OPPROTO
op_fincstp(void)
1638 env
->fpstt
= (env
->fpstt
+ 1) & 7;
1639 env
->fpus
&= (~0x4700);
1642 void OPPROTO
op_fmov_ST0_FT0(void)
1647 void OPPROTO
op_fmov_FT0_STN(void)
1652 void OPPROTO
op_fmov_ST0_STN(void)
1657 void OPPROTO
op_fmov_STN_ST0(void)
1662 void OPPROTO
op_fxchg_ST0_STN(void)
1670 /* FPU operations */
1672 /* XXX: handle nans */
1673 void OPPROTO
op_fcom_ST0_FT0(void)
1675 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1677 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1678 else if (ST0
== FT0
)
1679 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1683 /* XXX: handle nans */
1684 void OPPROTO
op_fucom_ST0_FT0(void)
1686 env
->fpus
&= (~0x4500); /* (C3,C2,C0) <-- 000 */
1688 env
->fpus
|= 0x100; /* (C3,C2,C0) <-- 001 */
1689 else if (ST0
== FT0
)
1690 env
->fpus
|= 0x4000; /* (C3,C2,C0) <-- 100 */
1694 /* XXX: handle nans */
1695 void OPPROTO
op_fcomi_ST0_FT0(void)
1698 eflags
= cc_table
[CC_OP
].compute_all();
1699 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1702 else if (ST0
== FT0
)
1708 /* XXX: handle nans */
1709 void OPPROTO
op_fucomi_ST0_FT0(void)
1712 eflags
= cc_table
[CC_OP
].compute_all();
1713 eflags
&= ~(CC_Z
| CC_P
| CC_C
);
1716 else if (ST0
== FT0
)
1722 void OPPROTO
op_fcmov_ST0_STN_T0(void)
1730 void OPPROTO
op_fadd_ST0_FT0(void)
1735 void OPPROTO
op_fmul_ST0_FT0(void)
1740 void OPPROTO
op_fsub_ST0_FT0(void)
1745 void OPPROTO
op_fsubr_ST0_FT0(void)
1750 void OPPROTO
op_fdiv_ST0_FT0(void)
1752 ST0
= helper_fdiv(ST0
, FT0
);
1755 void OPPROTO
op_fdivr_ST0_FT0(void)
1757 ST0
= helper_fdiv(FT0
, ST0
);
1760 /* fp operations between STN and ST0 */
1762 void OPPROTO
op_fadd_STN_ST0(void)
1767 void OPPROTO
op_fmul_STN_ST0(void)
1772 void OPPROTO
op_fsub_STN_ST0(void)
1777 void OPPROTO
op_fsubr_STN_ST0(void)
1784 void OPPROTO
op_fdiv_STN_ST0(void)
1788 *p
= helper_fdiv(*p
, ST0
);
1791 void OPPROTO
op_fdivr_STN_ST0(void)
1795 *p
= helper_fdiv(ST0
, *p
);
1798 /* misc FPU operations */
1799 void OPPROTO
op_fchs_ST0(void)
1804 void OPPROTO
op_fabs_ST0(void)
1809 void OPPROTO
op_fxam_ST0(void)
1814 void OPPROTO
op_fld1_ST0(void)
1819 void OPPROTO
op_fldl2t_ST0(void)
1824 void OPPROTO
op_fldl2e_ST0(void)
1829 void OPPROTO
op_fldpi_ST0(void)
1834 void OPPROTO
op_fldlg2_ST0(void)
1839 void OPPROTO
op_fldln2_ST0(void)
1844 void OPPROTO
op_fldz_ST0(void)
1849 void OPPROTO
op_fldz_FT0(void)
1854 /* associated heplers to reduce generated code length and to simplify
1855 relocation (FP constants are usually stored in .rodata section) */
1857 void OPPROTO
op_f2xm1(void)
1862 void OPPROTO
op_fyl2x(void)
1867 void OPPROTO
op_fptan(void)
1872 void OPPROTO
op_fpatan(void)
1877 void OPPROTO
op_fxtract(void)
1882 void OPPROTO
op_fprem1(void)
1888 void OPPROTO
op_fprem(void)
1893 void OPPROTO
op_fyl2xp1(void)
1898 void OPPROTO
op_fsqrt(void)
1903 void OPPROTO
op_fsincos(void)
1908 void OPPROTO
op_frndint(void)
1913 void OPPROTO
op_fscale(void)
1918 void OPPROTO
op_fsin(void)
1923 void OPPROTO
op_fcos(void)
1928 void OPPROTO
op_fnstsw_A0(void)
1931 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1932 stw((void *)A0
, fpus
);
1935 void OPPROTO
op_fnstsw_EAX(void)
1938 fpus
= (env
->fpus
& ~0x3800) | (env
->fpstt
& 0x7) << 11;
1939 EAX
= (EAX
& 0xffff0000) | fpus
;
1942 void OPPROTO
op_fnstcw_A0(void)
1944 stw((void *)A0
, env
->fpuc
);
1947 void OPPROTO
op_fldcw_A0(void)
1950 env
->fpuc
= lduw((void *)A0
);
1951 /* set rounding mode */
1953 switch(env
->fpuc
& RC_MASK
) {
1968 fpsetround(rnd_type
);
1970 switch(env
->fpuc
& RC_MASK
) {
1973 rnd_type
= FE_TONEAREST
;
1976 rnd_type
= FE_DOWNWARD
;
1979 rnd_type
= FE_UPWARD
;
1982 rnd_type
= FE_TOWARDZERO
;
1985 fesetround(rnd_type
);
1989 void OPPROTO
op_fclex(void)
1991 env
->fpus
&= 0x7f00;
1994 void OPPROTO
op_fwait(void)
1996 if (env
->fpus
& FPUS_SE
)
1997 fpu_raise_exception();
2001 void OPPROTO
op_fninit(void)
2016 void OPPROTO
op_fnstenv_A0(void)
2018 helper_fstenv((uint8_t *)A0
, PARAM1
);
2021 void OPPROTO
op_fldenv_A0(void)
2023 helper_fldenv((uint8_t *)A0
, PARAM1
);
2026 void OPPROTO
op_fnsave_A0(void)
2028 helper_fsave((uint8_t *)A0
, PARAM1
);
2031 void OPPROTO
op_frstor_A0(void)
2033 helper_frstor((uint8_t *)A0
, PARAM1
);
2036 /* threading support */
2037 void OPPROTO
op_lock(void)
2042 void OPPROTO
op_unlock(void)