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
20 #include "exec-i386.h"
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 void OPPROTO op_addl_T0_T1_cc(void)
90 void OPPROTO op_orl_T0_T1_cc(void)
96 void OPPROTO op_andl_T0_T1_cc(void)
102 void OPPROTO op_subl_T0_T1_cc(void)
109 void OPPROTO op_xorl_T0_T1_cc(void)
115 void OPPROTO op_cmpl_T0_T1_cc(void)
121 void OPPROTO op_negl_T0_cc(void)
128 void OPPROTO op_incl_T0_cc(void)
130 CC_SRC = cc_table[CC_OP].compute_c();
135 void OPPROTO op_decl_T0_cc(void)
137 CC_SRC = cc_table[CC_OP].compute_c();
142 void OPPROTO op_testl_T0_T1_cc(void)
147 /* operations without flags */
149 void OPPROTO op_addl_T0_T1(void)
154 void OPPROTO op_orl_T0_T1(void)
159 void OPPROTO op_andl_T0_T1(void)
164 void OPPROTO op_subl_T0_T1(void)
169 void OPPROTO op_xorl_T0_T1(void)
174 void OPPROTO op_negl_T0(void)
179 void OPPROTO op_incl_T0(void)
184 void OPPROTO op_decl_T0(void)
189 void OPPROTO op_notl_T0(void)
194 void OPPROTO op_bswapl_T0(void)
199 /* multiply/divide */
200 void OPPROTO op_mulb_AL_T0(void)
203 res = (uint8_t)EAX * (uint8_t)T0;
204 EAX = (EAX & 0xffff0000) | res;
205 CC_SRC = (res & 0xff00);
208 void OPPROTO op_imulb_AL_T0(void)
211 res = (int8_t)EAX * (int8_t)T0;
212 EAX = (EAX & 0xffff0000) | (res & 0xffff);
213 CC_SRC = (res != (int8_t)res);
216 void OPPROTO op_mulw_AX_T0(void)
219 res = (uint16_t)EAX * (uint16_t)T0;
220 EAX = (EAX & 0xffff0000) | (res & 0xffff);
221 EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
225 void OPPROTO op_imulw_AX_T0(void)
228 res = (int16_t)EAX * (int16_t)T0;
229 EAX = (EAX & 0xffff0000) | (res & 0xffff);
230 EDX = (EDX & 0xffff0000) | ((res >> 16) & 0xffff);
231 CC_SRC = (res != (int16_t)res);
234 void OPPROTO op_mull_EAX_T0(void)
237 res = (uint64_t)((uint32_t)EAX) * (uint64_t)((uint32_t)T0);
243 void OPPROTO op_imull_EAX_T0(void)
246 res = (int64_t)((int32_t)EAX) * (int64_t)((int32_t)T0);
249 CC_SRC = (res != (int32_t)res);
252 void OPPROTO op_imulw_T0_T1(void)
255 res = (int16_t)T0 * (int16_t)T1;
257 CC_SRC = (res != (int16_t)res);
260 void OPPROTO op_imull_T0_T1(void)
263 res = (int64_t)((int32_t)T0) * (int64_t)((int32_t)T1);
265 CC_SRC = (res != (int32_t)res);
268 /* division, flags are undefined */
269 /* XXX: add exceptions for overflow */
271 void OPPROTO op_divb_AL_T0(void)
273 unsigned int num, den, q, r;
275 num = (EAX & 0xffff);
279 raise_exception(EXCP00_DIVZ);
281 q = (num / den) & 0xff;
282 r = (num % den) & 0xff;
283 EAX = (EAX & 0xffff0000) | (r << 8) | q;
286 void OPPROTO op_idivb_AL_T0(void)
294 raise_exception(EXCP00_DIVZ);
296 q = (num / den) & 0xff;
297 r = (num % den) & 0xff;
298 EAX = (EAX & 0xffff0000) | (r << 8) | q;
301 void OPPROTO op_divw_AX_T0(void)
303 unsigned int num, den, q, r;
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_idivw_AX_T0(void)
321 num = (EAX & 0xffff) | ((EDX & 0xffff) << 16);
325 raise_exception(EXCP00_DIVZ);
327 q = (num / den) & 0xffff;
328 r = (num % den) & 0xffff;
329 EAX = (EAX & 0xffff0000) | q;
330 EDX = (EDX & 0xffff0000) | r;
333 void OPPROTO op_divl_EAX_T0(void)
335 helper_divl_EAX_T0(PARAM1);
338 void OPPROTO op_idivl_EAX_T0(void)
340 helper_idivl_EAX_T0(PARAM1);
343 /* constant load & misc op */
345 void OPPROTO op_movl_T0_im(void)
350 void OPPROTO op_addl_T0_im(void)
355 void OPPROTO op_andl_T0_ffff(void)
360 void OPPROTO op_andl_T0_im(void)
365 void OPPROTO op_movl_T0_T1(void)
370 void OPPROTO op_movl_T1_im(void)
375 void OPPROTO op_addl_T1_im(void)
380 void OPPROTO op_movl_T1_A0(void)
385 void OPPROTO op_movl_A0_im(void)
390 void OPPROTO op_addl_A0_im(void)
395 void OPPROTO op_addl_A0_AL(void)
400 void OPPROTO op_andl_A0_ffff(void)
407 void OPPROTO op_ldub_T0_A0(void)
409 T0 = ldub((uint8_t *)A0);
412 void OPPROTO op_ldsb_T0_A0(void)
414 T0 = ldsb((int8_t *)A0);
417 void OPPROTO op_lduw_T0_A0(void)
419 T0 = lduw((uint8_t *)A0);
422 void OPPROTO op_ldsw_T0_A0(void)
424 T0 = ldsw((int8_t *)A0);
427 void OPPROTO op_ldl_T0_A0(void)
429 T0 = ldl((uint8_t *)A0);
432 void OPPROTO op_ldub_T1_A0(void)
434 T1 = ldub((uint8_t *)A0);
437 void OPPROTO op_ldsb_T1_A0(void)
439 T1 = ldsb((int8_t *)A0);
442 void OPPROTO op_lduw_T1_A0(void)
444 T1 = lduw((uint8_t *)A0);
447 void OPPROTO op_ldsw_T1_A0(void)
449 T1 = ldsw((int8_t *)A0);
452 void OPPROTO op_ldl_T1_A0(void)
454 T1 = ldl((uint8_t *)A0);
457 void OPPROTO op_stb_T0_A0(void)
459 stb((uint8_t *)A0, T0);
462 void OPPROTO op_stw_T0_A0(void)
464 stw((uint8_t *)A0, T0);
467 void OPPROTO op_stl_T0_A0(void)
469 stl((uint8_t *)A0, T0);
472 /* used for bit operations */
474 void OPPROTO op_add_bitw_A0_T1(void)
476 A0 += ((int32_t)T1 >> 4) << 1;
479 void OPPROTO op_add_bitl_A0_T1(void)
481 A0 += ((int32_t)T1 >> 5) << 2;
486 void OPPROTO op_jmp_T0(void)
491 void OPPROTO op_jmp_im(void)
496 void OPPROTO op_raise_interrupt(void)
499 unsigned int next_eip;
502 raise_interrupt(intno, 1, 0, next_eip);
505 void OPPROTO op_raise_exception(void)
508 exception_index = PARAM1;
509 raise_exception(exception_index);
512 void OPPROTO op_into(void)
515 eflags = cc_table[CC_OP].compute_all();
517 raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
522 void OPPROTO op_cli(void)
524 env->eflags &= ~IF_MASK;
527 void OPPROTO op_sti(void)
529 env->eflags |= IF_MASK;
533 /* vm86plus instructions */
534 void OPPROTO op_cli_vm(void)
536 env->eflags &= ~VIF_MASK;
539 void OPPROTO op_sti_vm(void)
541 env->eflags |= VIF_MASK;
542 if (env->eflags & VIP_MASK) {
544 raise_exception(EXCP0D_GPF);
550 void OPPROTO op_boundw(void)
553 low = ldsw((uint8_t *)A0);
554 high = ldsw((uint8_t *)A0 + 2);
556 if (v < low || v > high) {
558 raise_exception(EXCP05_BOUND);
563 void OPPROTO op_boundl(void)
566 low = ldl((uint8_t *)A0);
567 high = ldl((uint8_t *)A0 + 4);
569 if (v < low || v > high) {
571 raise_exception(EXCP05_BOUND);
576 void OPPROTO op_cmpxchg8b(void)
581 void OPPROTO op_jmp_tb_next(void)
583 JUMP_TB(PARAM1, 0, PARAM2);
586 void OPPROTO op_movl_T0_0(void)
591 /* multiple size ops */
596 #include "ops_template.h"
600 #include "ops_template.h"
604 #include "ops_template.h"
609 void OPPROTO op_movsbl_T0_T0(void)
614 void OPPROTO op_movzbl_T0_T0(void)
619 void OPPROTO op_movswl_T0_T0(void)
624 void OPPROTO op_movzwl_T0_T0(void)
629 void OPPROTO op_movswl_EAX_AX(void)
634 void OPPROTO op_movsbw_AX_AL(void)
636 EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
639 void OPPROTO op_movslq_EDX_EAX(void)
641 EDX = (int32_t)EAX >> 31;
644 void OPPROTO op_movswl_DX_AX(void)
646 EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
651 void op_pushl_T0(void)
655 stl((void *)offset, T0);
656 /* modify ESP after to handle exceptions correctly */
660 void op_pushw_T0(void)
664 stw((void *)offset, T0);
665 /* modify ESP after to handle exceptions correctly */
669 void op_pushl_ss32_T0(void)
673 stl(env->segs[R_SS].base + offset, T0);
674 /* modify ESP after to handle exceptions correctly */
678 void op_pushw_ss32_T0(void)
682 stw(env->segs[R_SS].base + offset, T0);
683 /* modify ESP after to handle exceptions correctly */
687 void op_pushl_ss16_T0(void)
690 offset = (ESP - 4) & 0xffff;
691 stl(env->segs[R_SS].base + offset, T0);
692 /* modify ESP after to handle exceptions correctly */
693 ESP = (ESP & ~0xffff) | offset;
696 void op_pushw_ss16_T0(void)
699 offset = (ESP - 2) & 0xffff;
700 stw(env->segs[R_SS].base + offset, T0);
701 /* modify ESP after to handle exceptions correctly */
702 ESP = (ESP & ~0xffff) | offset;
705 /* NOTE: ESP update is done after */
706 void op_popl_T0(void)
708 T0 = ldl((void *)ESP);
711 void op_popw_T0(void)
713 T0 = lduw((void *)ESP);
716 void op_popl_ss32_T0(void)
718 T0 = ldl(env->segs[R_SS].base + ESP);
721 void op_popw_ss32_T0(void)
723 T0 = lduw(env->segs[R_SS].base + ESP);
726 void op_popl_ss16_T0(void)
728 T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
731 void op_popw_ss16_T0(void)
733 T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
736 void op_addl_ESP_4(void)
741 void op_addl_ESP_2(void)
746 void op_addw_ESP_4(void)
748 ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
751 void op_addw_ESP_2(void)
753 ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
756 void op_addl_ESP_im(void)
761 void op_addw_ESP_im(void)
763 ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
766 void OPPROTO op_rdtsc(void)
771 void OPPROTO op_cpuid(void)
779 void OPPROTO op_aam(void)
786 EAX = (EAX & ~0xffff) | al | (ah << 8);
790 void OPPROTO op_aad(void)
795 ah = (EAX >> 8) & 0xff;
796 al = ((ah * base) + al) & 0xff;
797 EAX = (EAX & ~0xffff) | al;
801 void OPPROTO op_aaa(void)
807 eflags = cc_table[CC_OP].compute_all();
810 ah = (EAX >> 8) & 0xff;
812 icarry = (al > 0xf9);
813 if (((al & 0x0f) > 9 ) || af) {
814 al = (al + 6) & 0x0f;
815 ah = (ah + 1 + icarry) & 0xff;
816 eflags |= CC_C | CC_A;
818 eflags &= ~(CC_C | CC_A);
821 EAX = (EAX & ~0xffff) | al | (ah << 8);
825 void OPPROTO op_aas(void)
831 eflags = cc_table[CC_OP].compute_all();
834 ah = (EAX >> 8) & 0xff;
837 if (((al & 0x0f) > 9 ) || af) {
838 al = (al - 6) & 0x0f;
839 ah = (ah - 1 - icarry) & 0xff;
840 eflags |= CC_C | CC_A;
842 eflags &= ~(CC_C | CC_A);
845 EAX = (EAX & ~0xffff) | al | (ah << 8);
849 void OPPROTO op_daa(void)
854 eflags = cc_table[CC_OP].compute_all();
860 if (((al & 0x0f) > 9 ) || af) {
861 al = (al + 6) & 0xff;
864 if ((al > 0x9f) || cf) {
865 al = (al + 0x60) & 0xff;
868 EAX = (EAX & ~0xff) | al;
869 /* well, speed is not an issue here, so we compute the flags by hand */
870 eflags |= (al == 0) << 6; /* zf */
871 eflags |= parity_table[al]; /* pf */
872 eflags |= (al & 0x80); /* sf */
876 void OPPROTO op_das(void)
881 eflags = cc_table[CC_OP].compute_all();
888 if (((al & 0x0f) > 9 ) || af) {
892 al = (al - 6) & 0xff;
894 if ((al1 > 0x99) || cf) {
895 al = (al - 0x60) & 0xff;
898 EAX = (EAX & ~0xff) | al;
899 /* well, speed is not an issue here, so we compute the flags by hand */
900 eflags |= (al == 0) << 6; /* zf */
901 eflags |= parity_table[al]; /* pf */
902 eflags |= (al & 0x80); /* sf */
906 /* segment handling */
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 /* T0: segment, T1:eip */
952 void OPPROTO op_ljmp_T0_T1(void)
954 jmp_seg(T0 & 0xffff, T1);
957 void OPPROTO op_lldt_T0(void)
962 void OPPROTO op_ltr_T0(void)
967 /* CR registers access */
968 void OPPROTO op_movl_crN_T0(void)
970 helper_movl_crN_T0(PARAM1);
973 /* DR registers access */
974 void OPPROTO op_movl_drN_T0(void)
976 helper_movl_drN_T0(PARAM1);
979 void OPPROTO op_lmsw_T0(void)
981 /* only 4 lower bits of CR0 are modified */
982 T0 = (env->cr[0] & ~0xf) | (T0 & 0xf);
983 helper_movl_crN_T0(0);
986 void OPPROTO op_movl_T0_env(void)
988 T0 = *(uint32_t *)((char *)env + PARAM1);
991 void OPPROTO op_movl_env_T0(void)
993 *(uint32_t *)((char *)env + PARAM1) = T0;
996 void OPPROTO op_movl_env_T1(void)
998 *(uint32_t *)((char *)env + PARAM1) = T1;
1001 void OPPROTO op_clts(void)
1003 env->cr[0] &= ~CR0_TS_MASK;
1006 /* flags handling */
1008 /* slow jumps cases : in order to avoid calling a function with a
1009 pointer (which can generate a stack frame on PowerPC), we use
1010 op_setcc to set T0 and then call op_jcc. */
1011 void OPPROTO op_jcc(void)
1014 JUMP_TB(PARAM1, 0, PARAM2);
1016 JUMP_TB(PARAM1, 1, PARAM3);
1020 /* slow set cases (compute x86 flags) */
1021 void OPPROTO op_seto_T0_cc(void)
1024 eflags = cc_table[CC_OP].compute_all();
1025 T0 = (eflags >> 11) & 1;
1028 void OPPROTO op_setb_T0_cc(void)
1030 T0 = cc_table[CC_OP].compute_c();
1033 void OPPROTO op_setz_T0_cc(void)
1036 eflags = cc_table[CC_OP].compute_all();
1037 T0 = (eflags >> 6) & 1;
1040 void OPPROTO op_setbe_T0_cc(void)
1043 eflags = cc_table[CC_OP].compute_all();
1044 T0 = (eflags & (CC_Z | CC_C)) != 0;
1047 void OPPROTO op_sets_T0_cc(void)
1050 eflags = cc_table[CC_OP].compute_all();
1051 T0 = (eflags >> 7) & 1;
1054 void OPPROTO op_setp_T0_cc(void)
1057 eflags = cc_table[CC_OP].compute_all();
1058 T0 = (eflags >> 2) & 1;
1061 void OPPROTO op_setl_T0_cc(void)
1064 eflags = cc_table[CC_OP].compute_all();
1065 T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
1068 void OPPROTO op_setle_T0_cc(void)
1071 eflags = cc_table[CC_OP].compute_all();
1072 T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
1075 void OPPROTO op_xor_T0_1(void)
1080 void OPPROTO op_set_cc_op(void)
1085 #define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK)
1086 #define FL_UPDATE_MASK16 (TF_MASK)
1088 void OPPROTO op_movl_eflags_T0(void)
1092 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1093 DF = 1 - (2 * ((eflags >> 10) & 1));
1094 /* we also update some system flags as in user mode */
1095 env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | (eflags & FL_UPDATE_MASK32);
1098 void OPPROTO op_movw_eflags_T0(void)
1102 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1103 DF = 1 - (2 * ((eflags >> 10) & 1));
1104 /* we also update some system flags as in user mode */
1105 env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | (eflags & FL_UPDATE_MASK16);
1109 /* vm86plus version */
1110 void OPPROTO op_movw_eflags_T0_vm(void)
1114 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1115 DF = 1 - (2 * ((eflags >> 10) & 1));
1116 /* we also update some system flags as in user mode */
1117 env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
1118 (eflags & FL_UPDATE_MASK16);
1119 if (eflags & IF_MASK) {
1120 env->eflags |= VIF_MASK;
1121 if (env->eflags & VIP_MASK) {
1123 raise_exception(EXCP0D_GPF);
1129 void OPPROTO op_movl_eflags_T0_vm(void)
1133 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1134 DF = 1 - (2 * ((eflags >> 10) & 1));
1135 /* we also update some system flags as in user mode */
1136 env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
1137 (eflags & FL_UPDATE_MASK32);
1138 if (eflags & IF_MASK) {
1139 env->eflags |= VIF_MASK;
1140 if (env->eflags & VIP_MASK) {
1142 raise_exception(EXCP0D_GPF);
1149 /* XXX: compute only O flag */
1150 void OPPROTO op_movb_eflags_T0(void)
1153 of = cc_table[CC_OP].compute_all() & CC_O;
1154 CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
1157 void OPPROTO op_movl_T0_eflags(void)
1160 eflags = cc_table[CC_OP].compute_all();
1161 eflags |= (DF & DF_MASK);
1162 eflags |= env->eflags & ~(VM_MASK | RF_MASK);
1166 /* vm86plus version */
1168 void OPPROTO op_movl_T0_eflags_vm(void)
1171 eflags = cc_table[CC_OP].compute_all();
1172 eflags |= (DF & DF_MASK);
1173 eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
1174 if (env->eflags & VIF_MASK)
1180 void OPPROTO op_cld(void)
1185 void OPPROTO op_std(void)
1190 void OPPROTO op_clc(void)
1193 eflags = cc_table[CC_OP].compute_all();
1198 void OPPROTO op_stc(void)
1201 eflags = cc_table[CC_OP].compute_all();
1206 void OPPROTO op_cmc(void)
1209 eflags = cc_table[CC_OP].compute_all();
1214 void OPPROTO op_salc(void)
1217 cf = cc_table[CC_OP].compute_c();
1218 EAX = (EAX & ~0xff) | ((-cf) & 0xff);
1221 static int compute_all_eflags(void)
1226 static int compute_c_eflags(void)
1228 return CC_SRC & CC_C;
1231 static int compute_c_mul(void)
1238 static int compute_all_mul(void)
1240 int cf, pf, af, zf, sf, of;
1242 pf = 0; /* undefined */
1243 af = 0; /* undefined */
1244 zf = 0; /* undefined */
1245 sf = 0; /* undefined */
1247 return cf | pf | af | zf | sf | of;
1250 CCTable cc_table[CC_OP_NB] = {
1251 [CC_OP_DYNAMIC] = { /* should never happen */ },
1253 [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
1255 [CC_OP_MUL] = { compute_all_mul, compute_c_mul },
1257 [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
1258 [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
1259 [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
1261 [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
1262 [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
1263 [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
1265 [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
1266 [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
1267 [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
1269 [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
1270 [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
1271 [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
1273 [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
1274 [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
1275 [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
1277 [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
1278 [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
1279 [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
1281 [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
1282 [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
1283 [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
1285 [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
1286 [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
1287 [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
1289 [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
1290 [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
1291 [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
1294 /* floating point support. Some of the code for complicated x87
1295 functions comes from the LGPL'ed x86 emulator found in the Willows
1296 TWIN windows emulator. */
1298 #if defined(__powerpc__)
1299 extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
1301 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1302 double qemu_rint(double x)
1304 double y = 4503599627370496.0;
1315 #define rint qemu_rint
1320 void OPPROTO op_flds_FT0_A0(void)
1322 #ifdef USE_FP_CONVERT
1323 FP_CONVERT.i32 = ldl((void *)A0);
1326 FT0 = ldfl((void *)A0);
1330 void OPPROTO op_fldl_FT0_A0(void)
1332 #ifdef USE_FP_CONVERT
1333 FP_CONVERT.i64 = ldq((void *)A0);
1336 FT0 = ldfq((void *)A0);
1340 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1341 #ifdef USE_INT_TO_FLOAT_HELPERS
1343 void helper_fild_FT0_A0(void)
1345 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1348 void helper_fildl_FT0_A0(void)
1350 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1353 void helper_fildll_FT0_A0(void)
1355 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1358 void OPPROTO op_fild_FT0_A0(void)
1360 helper_fild_FT0_A0();
1363 void OPPROTO op_fildl_FT0_A0(void)
1365 helper_fildl_FT0_A0();
1368 void OPPROTO op_fildll_FT0_A0(void)
1370 helper_fildll_FT0_A0();
1375 void OPPROTO op_fild_FT0_A0(void)
1377 #ifdef USE_FP_CONVERT
1378 FP_CONVERT.i32 = ldsw((void *)A0);
1379 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1381 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1385 void OPPROTO op_fildl_FT0_A0(void)
1387 #ifdef USE_FP_CONVERT
1388 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1389 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1391 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1395 void OPPROTO op_fildll_FT0_A0(void)
1397 #ifdef USE_FP_CONVERT
1398 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1399 FT0 = (CPU86_LDouble)FP_CONVERT.i64;
1401 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1408 void OPPROTO op_flds_ST0_A0(void)
1410 #ifdef USE_FP_CONVERT
1411 FP_CONVERT.i32 = ldl((void *)A0);
1414 ST0 = ldfl((void *)A0);
1418 void OPPROTO op_fldl_ST0_A0(void)
1420 #ifdef USE_FP_CONVERT
1421 FP_CONVERT.i64 = ldq((void *)A0);
1424 ST0 = ldfq((void *)A0);
1428 #ifdef USE_X86LDOUBLE
1429 void OPPROTO op_fldt_ST0_A0(void)
1431 ST0 = *(long double *)A0;
1434 void OPPROTO op_fldt_ST0_A0(void)
1436 helper_fldt_ST0_A0();
1440 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1441 #ifdef USE_INT_TO_FLOAT_HELPERS
1443 void helper_fild_ST0_A0(void)
1445 ST0 = (CPU86_LDouble)ldsw((void *)A0);
1448 void helper_fildl_ST0_A0(void)
1450 ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1453 void helper_fildll_ST0_A0(void)
1455 ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1458 void OPPROTO op_fild_ST0_A0(void)
1460 helper_fild_ST0_A0();
1463 void OPPROTO op_fildl_ST0_A0(void)
1465 helper_fildl_ST0_A0();
1468 void OPPROTO op_fildll_ST0_A0(void)
1470 helper_fildll_ST0_A0();
1475 void OPPROTO op_fild_ST0_A0(void)
1477 #ifdef USE_FP_CONVERT
1478 FP_CONVERT.i32 = ldsw((void *)A0);
1479 ST0 = (CPU86_LDouble)FP_CONVERT.i32;
1481 ST0 = (CPU86_LDouble)ldsw((void *)A0);
1485 void OPPROTO op_fildl_ST0_A0(void)
1487 #ifdef USE_FP_CONVERT
1488 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1489 ST0 = (CPU86_LDouble)FP_CONVERT.i32;
1491 ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1495 void OPPROTO op_fildll_ST0_A0(void)
1497 #ifdef USE_FP_CONVERT
1498 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1499 ST0 = (CPU86_LDouble)FP_CONVERT.i64;
1501 ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1509 void OPPROTO op_fsts_ST0_A0(void)
1511 #ifdef USE_FP_CONVERT
1512 FP_CONVERT.f = (float)ST0;
1513 stfl((void *)A0, FP_CONVERT.f);
1515 stfl((void *)A0, (float)ST0);
1519 void OPPROTO op_fstl_ST0_A0(void)
1521 stfq((void *)A0, (double)ST0);
1524 #ifdef USE_X86LDOUBLE
1525 void OPPROTO op_fstt_ST0_A0(void)
1527 *(long double *)A0 = ST0;
1530 void OPPROTO op_fstt_ST0_A0(void)
1532 helper_fstt_ST0_A0();
1536 void OPPROTO op_fist_ST0_A0(void)
1538 #if defined(__sparc__) && !defined(__sparc_v9__)
1539 register CPU86_LDouble d asm("o0");
1547 if (val != (int16_t)val)
1549 stw((void *)A0, val);
1552 void OPPROTO op_fistl_ST0_A0(void)
1554 #if defined(__sparc__) && !defined(__sparc_v9__)
1555 register CPU86_LDouble d asm("o0");
1563 stl((void *)A0, val);
1566 void OPPROTO op_fistll_ST0_A0(void)
1568 #if defined(__sparc__) && !defined(__sparc_v9__)
1569 register CPU86_LDouble d asm("o0");
1577 stq((void *)A0, val);
1580 void OPPROTO op_fbld_ST0_A0(void)
1582 helper_fbld_ST0_A0();
1585 void OPPROTO op_fbst_ST0_A0(void)
1587 helper_fbst_ST0_A0();
1592 void OPPROTO op_fpush(void)
1597 void OPPROTO op_fpop(void)
1602 void OPPROTO op_fdecstp(void)
1604 env->fpstt = (env->fpstt - 1) & 7;
1605 env->fpus &= (~0x4700);
1608 void OPPROTO op_fincstp(void)
1610 env->fpstt = (env->fpstt + 1) & 7;
1611 env->fpus &= (~0x4700);
1614 void OPPROTO op_fmov_ST0_FT0(void)
1619 void OPPROTO op_fmov_FT0_STN(void)
1624 void OPPROTO op_fmov_ST0_STN(void)
1629 void OPPROTO op_fmov_STN_ST0(void)
1634 void OPPROTO op_fxchg_ST0_STN(void)
1642 /* FPU operations */
1644 /* XXX: handle nans */
1645 void OPPROTO op_fcom_ST0_FT0(void)
1647 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1649 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1650 else if (ST0 == FT0)
1651 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1655 /* XXX: handle nans */
1656 void OPPROTO op_fucom_ST0_FT0(void)
1658 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1660 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1661 else if (ST0 == FT0)
1662 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1666 /* XXX: handle nans */
1667 void OPPROTO op_fcomi_ST0_FT0(void)
1670 eflags = cc_table[CC_OP].compute_all();
1671 eflags &= ~(CC_Z | CC_P | CC_C);
1674 else if (ST0 == FT0)
1680 /* XXX: handle nans */
1681 void OPPROTO op_fucomi_ST0_FT0(void)
1684 eflags = cc_table[CC_OP].compute_all();
1685 eflags &= ~(CC_Z | CC_P | CC_C);
1688 else if (ST0 == FT0)
1694 void OPPROTO op_fadd_ST0_FT0(void)
1699 void OPPROTO op_fmul_ST0_FT0(void)
1704 void OPPROTO op_fsub_ST0_FT0(void)
1709 void OPPROTO op_fsubr_ST0_FT0(void)
1714 void OPPROTO op_fdiv_ST0_FT0(void)
1719 void OPPROTO op_fdivr_ST0_FT0(void)
1724 /* fp operations between STN and ST0 */
1726 void OPPROTO op_fadd_STN_ST0(void)
1731 void OPPROTO op_fmul_STN_ST0(void)
1736 void OPPROTO op_fsub_STN_ST0(void)
1741 void OPPROTO op_fsubr_STN_ST0(void)
1748 void OPPROTO op_fdiv_STN_ST0(void)
1753 void OPPROTO op_fdivr_STN_ST0(void)
1760 /* misc FPU operations */
1761 void OPPROTO op_fchs_ST0(void)
1766 void OPPROTO op_fabs_ST0(void)
1771 void OPPROTO op_fxam_ST0(void)
1776 void OPPROTO op_fld1_ST0(void)
1781 void OPPROTO op_fldl2t_ST0(void)
1786 void OPPROTO op_fldl2e_ST0(void)
1791 void OPPROTO op_fldpi_ST0(void)
1796 void OPPROTO op_fldlg2_ST0(void)
1801 void OPPROTO op_fldln2_ST0(void)
1806 void OPPROTO op_fldz_ST0(void)
1811 void OPPROTO op_fldz_FT0(void)
1816 /* associated heplers to reduce generated code length and to simplify
1817 relocation (FP constants are usually stored in .rodata section) */
1819 void OPPROTO op_f2xm1(void)
1824 void OPPROTO op_fyl2x(void)
1829 void OPPROTO op_fptan(void)
1834 void OPPROTO op_fpatan(void)
1839 void OPPROTO op_fxtract(void)
1844 void OPPROTO op_fprem1(void)
1850 void OPPROTO op_fprem(void)
1855 void OPPROTO op_fyl2xp1(void)
1860 void OPPROTO op_fsqrt(void)
1865 void OPPROTO op_fsincos(void)
1870 void OPPROTO op_frndint(void)
1875 void OPPROTO op_fscale(void)
1880 void OPPROTO op_fsin(void)
1885 void OPPROTO op_fcos(void)
1890 void OPPROTO op_fnstsw_A0(void)
1893 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1894 stw((void *)A0, fpus);
1897 void OPPROTO op_fnstsw_EAX(void)
1900 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1901 EAX = (EAX & 0xffff0000) | fpus;
1904 void OPPROTO op_fnstcw_A0(void)
1906 stw((void *)A0, env->fpuc);
1909 void OPPROTO op_fldcw_A0(void)
1912 env->fpuc = lduw((void *)A0);
1913 /* set rounding mode */
1914 switch(env->fpuc & RC_MASK) {
1917 rnd_type = FE_TONEAREST;
1920 rnd_type = FE_DOWNWARD;
1923 rnd_type = FE_UPWARD;
1926 rnd_type = FE_TOWARDZERO;
1929 fesetround(rnd_type);
1932 void OPPROTO op_fclex(void)
1934 env->fpus &= 0x7f00;
1937 void OPPROTO op_fninit(void)
1952 void OPPROTO op_fnstenv_A0(void)
1954 helper_fstenv((uint8_t *)A0, PARAM1);
1957 void OPPROTO op_fldenv_A0(void)
1959 helper_fldenv((uint8_t *)A0, PARAM1);
1962 void OPPROTO op_fnsave_A0(void)
1964 helper_fsave((uint8_t *)A0, PARAM1);
1967 void OPPROTO op_frstor_A0(void)
1969 helper_frstor((uint8_t *)A0, PARAM1);
1972 /* threading support */
1973 void OPPROTO op_lock(void)
1978 void OPPROTO op_unlock(void)