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 /* 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;
461 /* vm86plus instructions */
462 void OPPROTO op_cli_vm(void)
464 env->eflags &= ~VIF_MASK;
467 void OPPROTO op_sti_vm(void)
469 env->eflags |= VIF_MASK;
470 if (env->eflags & VIP_MASK) {
472 raise_exception(EXCP0D_GPF);
478 void OPPROTO op_boundw(void)
481 low = ldsw((uint8_t *)A0);
482 high = ldsw((uint8_t *)A0 + 2);
484 if (v < low || v > high) {
486 raise_exception(EXCP05_BOUND);
491 void OPPROTO op_boundl(void)
494 low = ldl((uint8_t *)A0);
495 high = ldl((uint8_t *)A0 + 4);
497 if (v < low || v > high) {
499 raise_exception(EXCP05_BOUND);
504 void OPPROTO op_cmpxchg8b(void)
509 void OPPROTO op_jmp_tb_next(void)
511 JUMP_TB(PARAM1, 0, PARAM2);
514 void OPPROTO op_movl_T0_0(void)
519 void OPPROTO op_exit_tb(void)
524 /* multiple size ops */
529 #include "ops_template.h"
533 #include "ops_template.h"
537 #include "ops_template.h"
542 void OPPROTO op_movsbl_T0_T0(void)
547 void OPPROTO op_movzbl_T0_T0(void)
552 void OPPROTO op_movswl_T0_T0(void)
557 void OPPROTO op_movzwl_T0_T0(void)
562 void OPPROTO op_movswl_EAX_AX(void)
567 void OPPROTO op_movsbw_AX_AL(void)
569 EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
572 void OPPROTO op_movslq_EDX_EAX(void)
574 EDX = (int32_t)EAX >> 31;
577 void OPPROTO op_movswl_DX_AX(void)
579 EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
582 /* string ops helpers */
584 void OPPROTO op_addl_ESI_T0(void)
589 void OPPROTO op_addw_ESI_T0(void)
591 ESI = (ESI & ~0xffff) | ((ESI + T0) & 0xffff);
594 void OPPROTO op_addl_EDI_T0(void)
599 void OPPROTO op_addw_EDI_T0(void)
601 EDI = (EDI & ~0xffff) | ((EDI + T0) & 0xffff);
604 void OPPROTO op_decl_ECX(void)
609 void OPPROTO op_decw_ECX(void)
611 ECX = (ECX & ~0xffff) | ((ECX - 1) & 0xffff);
616 void op_pushl_T0(void)
620 stl((void *)offset, T0);
621 /* modify ESP after to handle exceptions correctly */
625 void op_pushw_T0(void)
629 stw((void *)offset, T0);
630 /* modify ESP after to handle exceptions correctly */
634 void op_pushl_ss32_T0(void)
638 stl(env->segs[R_SS].base + offset, T0);
639 /* modify ESP after to handle exceptions correctly */
643 void op_pushw_ss32_T0(void)
647 stw(env->segs[R_SS].base + offset, T0);
648 /* modify ESP after to handle exceptions correctly */
652 void op_pushl_ss16_T0(void)
655 offset = (ESP - 4) & 0xffff;
656 stl(env->segs[R_SS].base + offset, T0);
657 /* modify ESP after to handle exceptions correctly */
658 ESP = (ESP & ~0xffff) | offset;
661 void op_pushw_ss16_T0(void)
664 offset = (ESP - 2) & 0xffff;
665 stw(env->segs[R_SS].base + offset, T0);
666 /* modify ESP after to handle exceptions correctly */
667 ESP = (ESP & ~0xffff) | offset;
670 /* NOTE: ESP update is done after */
671 void op_popl_T0(void)
673 T0 = ldl((void *)ESP);
676 void op_popw_T0(void)
678 T0 = lduw((void *)ESP);
681 void op_popl_ss32_T0(void)
683 T0 = ldl(env->segs[R_SS].base + ESP);
686 void op_popw_ss32_T0(void)
688 T0 = lduw(env->segs[R_SS].base + ESP);
691 void op_popl_ss16_T0(void)
693 T0 = ldl(env->segs[R_SS].base + (ESP & 0xffff));
696 void op_popw_ss16_T0(void)
698 T0 = lduw(env->segs[R_SS].base + (ESP & 0xffff));
701 void op_addl_ESP_4(void)
706 void op_addl_ESP_2(void)
711 void op_addw_ESP_4(void)
713 ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
716 void op_addw_ESP_2(void)
718 ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
721 void op_addl_ESP_im(void)
726 void op_addw_ESP_im(void)
728 ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
731 void OPPROTO op_rdtsc(void)
736 void OPPROTO op_cpuid(void)
741 void OPPROTO op_rdmsr(void)
746 void OPPROTO op_wrmsr(void)
754 void OPPROTO op_aam(void)
761 EAX = (EAX & ~0xffff) | al | (ah << 8);
765 void OPPROTO op_aad(void)
770 ah = (EAX >> 8) & 0xff;
771 al = ((ah * base) + al) & 0xff;
772 EAX = (EAX & ~0xffff) | al;
776 void OPPROTO op_aaa(void)
782 eflags = cc_table[CC_OP].compute_all();
785 ah = (EAX >> 8) & 0xff;
787 icarry = (al > 0xf9);
788 if (((al & 0x0f) > 9 ) || af) {
789 al = (al + 6) & 0x0f;
790 ah = (ah + 1 + icarry) & 0xff;
791 eflags |= CC_C | CC_A;
793 eflags &= ~(CC_C | CC_A);
796 EAX = (EAX & ~0xffff) | al | (ah << 8);
800 void OPPROTO op_aas(void)
806 eflags = cc_table[CC_OP].compute_all();
809 ah = (EAX >> 8) & 0xff;
812 if (((al & 0x0f) > 9 ) || af) {
813 al = (al - 6) & 0x0f;
814 ah = (ah - 1 - icarry) & 0xff;
815 eflags |= CC_C | CC_A;
817 eflags &= ~(CC_C | CC_A);
820 EAX = (EAX & ~0xffff) | al | (ah << 8);
824 void OPPROTO op_daa(void)
829 eflags = cc_table[CC_OP].compute_all();
835 if (((al & 0x0f) > 9 ) || af) {
836 al = (al + 6) & 0xff;
839 if ((al > 0x9f) || cf) {
840 al = (al + 0x60) & 0xff;
843 EAX = (EAX & ~0xff) | al;
844 /* well, speed is not an issue here, so we compute the flags by hand */
845 eflags |= (al == 0) << 6; /* zf */
846 eflags |= parity_table[al]; /* pf */
847 eflags |= (al & 0x80); /* sf */
851 void OPPROTO op_das(void)
856 eflags = cc_table[CC_OP].compute_all();
863 if (((al & 0x0f) > 9 ) || af) {
867 al = (al - 6) & 0xff;
869 if ((al1 > 0x99) || cf) {
870 al = (al - 0x60) & 0xff;
873 EAX = (EAX & ~0xff) | al;
874 /* well, speed is not an issue here, so we compute the flags by hand */
875 eflags |= (al == 0) << 6; /* zf */
876 eflags |= parity_table[al]; /* pf */
877 eflags |= (al & 0x80); /* sf */
881 /* segment handling */
883 void OPPROTO op_movl_seg_T0(void)
885 load_seg(PARAM1, T0 & 0xffff, PARAM2);
888 /* faster VM86 version */
889 void OPPROTO op_movl_seg_T0_vm(void)
894 selector = T0 & 0xffff;
895 /* env->segs[] access */
896 sc = (SegmentCache *)((char *)env + PARAM1);
897 sc->selector = selector;
898 sc->base = (void *)(selector << 4);
901 void OPPROTO op_movl_T0_seg(void)
903 T0 = env->segs[PARAM1].selector;
906 void OPPROTO op_movl_A0_seg(void)
908 A0 = *(unsigned long *)((char *)env + PARAM1);
911 void OPPROTO op_addl_A0_seg(void)
913 A0 += *(unsigned long *)((char *)env + PARAM1);
916 void OPPROTO op_lsl(void)
921 void OPPROTO op_lar(void)
926 /* T0: segment, T1:eip */
927 void OPPROTO op_ljmp_protected_T0_T1(void)
929 helper_ljmp_protected_T0_T1();
932 void OPPROTO op_lcall_real_T0_T1(void)
934 helper_lcall_real_T0_T1(PARAM1, PARAM2);
937 void OPPROTO op_lcall_protected_T0_T1(void)
939 helper_lcall_protected_T0_T1(PARAM1, PARAM2);
942 void OPPROTO op_iret_real(void)
944 helper_iret_real(PARAM1);
947 void OPPROTO op_iret_protected(void)
949 helper_iret_protected(PARAM1);
952 void OPPROTO op_lret_protected(void)
954 helper_lret_protected(PARAM1, PARAM2);
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_invlpg_A0(void)
991 void OPPROTO op_movl_T0_env(void)
993 T0 = *(uint32_t *)((char *)env + PARAM1);
996 void OPPROTO op_movl_env_T0(void)
998 *(uint32_t *)((char *)env + PARAM1) = T0;
1001 void OPPROTO op_movl_env_T1(void)
1003 *(uint32_t *)((char *)env + PARAM1) = T1;
1006 void OPPROTO op_clts(void)
1008 env->cr[0] &= ~CR0_TS_MASK;
1011 /* flags handling */
1013 /* slow jumps cases : in order to avoid calling a function with a
1014 pointer (which can generate a stack frame on PowerPC), we use
1015 op_setcc to set T0 and then call op_jcc. */
1016 void OPPROTO op_jcc(void)
1019 JUMP_TB(PARAM1, 0, PARAM2);
1021 JUMP_TB(PARAM1, 1, PARAM3);
1025 /* slow set cases (compute x86 flags) */
1026 void OPPROTO op_seto_T0_cc(void)
1029 eflags = cc_table[CC_OP].compute_all();
1030 T0 = (eflags >> 11) & 1;
1033 void OPPROTO op_setb_T0_cc(void)
1035 T0 = cc_table[CC_OP].compute_c();
1038 void OPPROTO op_setz_T0_cc(void)
1041 eflags = cc_table[CC_OP].compute_all();
1042 T0 = (eflags >> 6) & 1;
1045 void OPPROTO op_setbe_T0_cc(void)
1048 eflags = cc_table[CC_OP].compute_all();
1049 T0 = (eflags & (CC_Z | CC_C)) != 0;
1052 void OPPROTO op_sets_T0_cc(void)
1055 eflags = cc_table[CC_OP].compute_all();
1056 T0 = (eflags >> 7) & 1;
1059 void OPPROTO op_setp_T0_cc(void)
1062 eflags = cc_table[CC_OP].compute_all();
1063 T0 = (eflags >> 2) & 1;
1066 void OPPROTO op_setl_T0_cc(void)
1069 eflags = cc_table[CC_OP].compute_all();
1070 T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
1073 void OPPROTO op_setle_T0_cc(void)
1076 eflags = cc_table[CC_OP].compute_all();
1077 T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
1080 void OPPROTO op_xor_T0_1(void)
1085 void OPPROTO op_set_cc_op(void)
1090 #define FL_UPDATE_MASK16 (FL_UPDATE_MASK32 & 0xffff)
1092 void OPPROTO op_movl_eflags_T0(void)
1096 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1097 DF = 1 - (2 * ((eflags >> 10) & 1));
1098 /* we also update some system flags as in user mode */
1099 env->eflags = (env->eflags & ~FL_UPDATE_MASK32) |
1100 (eflags & FL_UPDATE_MASK32);
1103 void OPPROTO op_movw_eflags_T0(void)
1107 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1108 DF = 1 - (2 * ((eflags >> 10) & 1));
1109 /* we also update some system flags as in user mode */
1110 env->eflags = (env->eflags & ~FL_UPDATE_MASK16) |
1111 (eflags & FL_UPDATE_MASK16);
1114 void OPPROTO op_movl_eflags_T0_cpl0(void)
1116 load_eflags(T0, FL_UPDATE_CPL0_MASK);
1119 void OPPROTO op_movw_eflags_T0_cpl0(void)
1121 load_eflags(T0, FL_UPDATE_CPL0_MASK & 0xffff);
1125 /* vm86plus version */
1126 void OPPROTO op_movw_eflags_T0_vm(void)
1130 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1131 DF = 1 - (2 * ((eflags >> 10) & 1));
1132 /* we also update some system flags as in user mode */
1133 env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
1134 (eflags & FL_UPDATE_MASK16);
1135 if (eflags & IF_MASK) {
1136 env->eflags |= VIF_MASK;
1137 if (env->eflags & VIP_MASK) {
1139 raise_exception(EXCP0D_GPF);
1145 void OPPROTO op_movl_eflags_T0_vm(void)
1149 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1150 DF = 1 - (2 * ((eflags >> 10) & 1));
1151 /* we also update some system flags as in user mode */
1152 env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
1153 (eflags & FL_UPDATE_MASK32);
1154 if (eflags & IF_MASK) {
1155 env->eflags |= VIF_MASK;
1156 if (env->eflags & VIP_MASK) {
1158 raise_exception(EXCP0D_GPF);
1165 /* XXX: compute only O flag */
1166 void OPPROTO op_movb_eflags_T0(void)
1169 of = cc_table[CC_OP].compute_all() & CC_O;
1170 CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
1173 void OPPROTO op_movl_T0_eflags(void)
1176 eflags = cc_table[CC_OP].compute_all();
1177 eflags |= (DF & DF_MASK);
1178 eflags |= env->eflags & ~(VM_MASK | RF_MASK);
1182 /* vm86plus version */
1184 void OPPROTO op_movl_T0_eflags_vm(void)
1187 eflags = cc_table[CC_OP].compute_all();
1188 eflags |= (DF & DF_MASK);
1189 eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
1190 if (env->eflags & VIF_MASK)
1196 void OPPROTO op_cld(void)
1201 void OPPROTO op_std(void)
1206 void OPPROTO op_clc(void)
1209 eflags = cc_table[CC_OP].compute_all();
1214 void OPPROTO op_stc(void)
1217 eflags = cc_table[CC_OP].compute_all();
1222 void OPPROTO op_cmc(void)
1225 eflags = cc_table[CC_OP].compute_all();
1230 void OPPROTO op_salc(void)
1233 cf = cc_table[CC_OP].compute_c();
1234 EAX = (EAX & ~0xff) | ((-cf) & 0xff);
1237 static int compute_all_eflags(void)
1242 static int compute_c_eflags(void)
1244 return CC_SRC & CC_C;
1247 static int compute_c_mul(void)
1254 static int compute_all_mul(void)
1256 int cf, pf, af, zf, sf, of;
1258 pf = 0; /* undefined */
1259 af = 0; /* undefined */
1260 zf = 0; /* undefined */
1261 sf = 0; /* undefined */
1263 return cf | pf | af | zf | sf | of;
1266 CCTable cc_table[CC_OP_NB] = {
1267 [CC_OP_DYNAMIC] = { /* should never happen */ },
1269 [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
1271 [CC_OP_MUL] = { compute_all_mul, compute_c_mul },
1273 [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
1274 [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
1275 [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
1277 [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
1278 [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
1279 [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
1281 [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
1282 [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
1283 [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
1285 [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
1286 [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
1287 [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
1289 [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
1290 [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
1291 [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
1293 [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
1294 [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
1295 [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
1297 [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
1298 [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
1299 [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
1301 [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
1302 [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
1303 [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
1305 [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
1306 [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
1307 [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
1310 /* floating point support. Some of the code for complicated x87
1311 functions comes from the LGPL'ed x86 emulator found in the Willows
1312 TWIN windows emulator. */
1314 #if defined(__powerpc__)
1315 extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
1317 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1318 double qemu_rint(double x)
1320 double y = 4503599627370496.0;
1331 #define rint qemu_rint
1336 void OPPROTO op_flds_FT0_A0(void)
1338 #ifdef USE_FP_CONVERT
1339 FP_CONVERT.i32 = ldl((void *)A0);
1342 FT0 = ldfl((void *)A0);
1346 void OPPROTO op_fldl_FT0_A0(void)
1348 #ifdef USE_FP_CONVERT
1349 FP_CONVERT.i64 = ldq((void *)A0);
1352 FT0 = ldfq((void *)A0);
1356 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1357 #ifdef USE_INT_TO_FLOAT_HELPERS
1359 void helper_fild_FT0_A0(void)
1361 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1364 void helper_fildl_FT0_A0(void)
1366 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1369 void helper_fildll_FT0_A0(void)
1371 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1374 void OPPROTO op_fild_FT0_A0(void)
1376 helper_fild_FT0_A0();
1379 void OPPROTO op_fildl_FT0_A0(void)
1381 helper_fildl_FT0_A0();
1384 void OPPROTO op_fildll_FT0_A0(void)
1386 helper_fildll_FT0_A0();
1391 void OPPROTO op_fild_FT0_A0(void)
1393 #ifdef USE_FP_CONVERT
1394 FP_CONVERT.i32 = ldsw((void *)A0);
1395 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1397 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1401 void OPPROTO op_fildl_FT0_A0(void)
1403 #ifdef USE_FP_CONVERT
1404 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1405 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1407 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1411 void OPPROTO op_fildll_FT0_A0(void)
1413 #ifdef USE_FP_CONVERT
1414 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1415 FT0 = (CPU86_LDouble)FP_CONVERT.i64;
1417 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1424 void OPPROTO op_flds_ST0_A0(void)
1427 new_fpstt = (env->fpstt - 1) & 7;
1428 #ifdef USE_FP_CONVERT
1429 FP_CONVERT.i32 = ldl((void *)A0);
1430 env->fpregs[new_fpstt] = FP_CONVERT.f;
1432 env->fpregs[new_fpstt] = ldfl((void *)A0);
1434 env->fpstt = new_fpstt;
1435 env->fptags[new_fpstt] = 0; /* validate stack entry */
1438 void OPPROTO op_fldl_ST0_A0(void)
1441 new_fpstt = (env->fpstt - 1) & 7;
1442 #ifdef USE_FP_CONVERT
1443 FP_CONVERT.i64 = ldq((void *)A0);
1444 env->fpregs[new_fpstt] = FP_CONVERT.d;
1446 env->fpregs[new_fpstt] = ldfq((void *)A0);
1448 env->fpstt = new_fpstt;
1449 env->fptags[new_fpstt] = 0; /* validate stack entry */
1452 #ifdef USE_X86LDOUBLE
1453 void OPPROTO op_fldt_ST0_A0(void)
1456 new_fpstt = (env->fpstt - 1) & 7;
1457 env->fpregs[new_fpstt] = *(long double *)A0;
1458 env->fpstt = new_fpstt;
1459 env->fptags[new_fpstt] = 0; /* validate stack entry */
1462 void OPPROTO op_fldt_ST0_A0(void)
1464 helper_fldt_ST0_A0();
1468 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1469 #ifdef USE_INT_TO_FLOAT_HELPERS
1471 void helper_fild_ST0_A0(void)
1474 new_fpstt = (env->fpstt - 1) & 7;
1475 env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
1476 env->fpstt = new_fpstt;
1477 env->fptags[new_fpstt] = 0; /* validate stack entry */
1480 void helper_fildl_ST0_A0(void)
1483 new_fpstt = (env->fpstt - 1) & 7;
1484 env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1485 env->fpstt = new_fpstt;
1486 env->fptags[new_fpstt] = 0; /* validate stack entry */
1489 void helper_fildll_ST0_A0(void)
1492 new_fpstt = (env->fpstt - 1) & 7;
1493 env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1494 env->fpstt = new_fpstt;
1495 env->fptags[new_fpstt] = 0; /* validate stack entry */
1498 void OPPROTO op_fild_ST0_A0(void)
1500 helper_fild_ST0_A0();
1503 void OPPROTO op_fildl_ST0_A0(void)
1505 helper_fildl_ST0_A0();
1508 void OPPROTO op_fildll_ST0_A0(void)
1510 helper_fildll_ST0_A0();
1515 void OPPROTO op_fild_ST0_A0(void)
1518 new_fpstt = (env->fpstt - 1) & 7;
1519 #ifdef USE_FP_CONVERT
1520 FP_CONVERT.i32 = ldsw((void *)A0);
1521 env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
1523 env->fpregs[new_fpstt] = (CPU86_LDouble)ldsw((void *)A0);
1525 env->fpstt = new_fpstt;
1526 env->fptags[new_fpstt] = 0; /* validate stack entry */
1529 void OPPROTO op_fildl_ST0_A0(void)
1532 new_fpstt = (env->fpstt - 1) & 7;
1533 #ifdef USE_FP_CONVERT
1534 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1535 env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i32;
1537 env->fpregs[new_fpstt] = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1539 env->fpstt = new_fpstt;
1540 env->fptags[new_fpstt] = 0; /* validate stack entry */
1543 void OPPROTO op_fildll_ST0_A0(void)
1546 new_fpstt = (env->fpstt - 1) & 7;
1547 #ifdef USE_FP_CONVERT
1548 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1549 env->fpregs[new_fpstt] = (CPU86_LDouble)FP_CONVERT.i64;
1551 env->fpregs[new_fpstt] = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1553 env->fpstt = new_fpstt;
1554 env->fptags[new_fpstt] = 0; /* validate stack entry */
1561 void OPPROTO op_fsts_ST0_A0(void)
1563 #ifdef USE_FP_CONVERT
1564 FP_CONVERT.f = (float)ST0;
1565 stfl((void *)A0, FP_CONVERT.f);
1567 stfl((void *)A0, (float)ST0);
1571 void OPPROTO op_fstl_ST0_A0(void)
1573 stfq((void *)A0, (double)ST0);
1576 #ifdef USE_X86LDOUBLE
1577 void OPPROTO op_fstt_ST0_A0(void)
1579 *(long double *)A0 = ST0;
1582 void OPPROTO op_fstt_ST0_A0(void)
1584 helper_fstt_ST0_A0();
1588 void OPPROTO op_fist_ST0_A0(void)
1590 #if defined(__sparc__) && !defined(__sparc_v9__)
1591 register CPU86_LDouble d asm("o0");
1599 if (val != (int16_t)val)
1601 stw((void *)A0, val);
1604 void OPPROTO op_fistl_ST0_A0(void)
1606 #if defined(__sparc__) && !defined(__sparc_v9__)
1607 register CPU86_LDouble d asm("o0");
1615 stl((void *)A0, val);
1618 void OPPROTO op_fistll_ST0_A0(void)
1620 #if defined(__sparc__) && !defined(__sparc_v9__)
1621 register CPU86_LDouble d asm("o0");
1629 stq((void *)A0, val);
1632 void OPPROTO op_fbld_ST0_A0(void)
1634 helper_fbld_ST0_A0();
1637 void OPPROTO op_fbst_ST0_A0(void)
1639 helper_fbst_ST0_A0();
1644 void OPPROTO op_fpush(void)
1649 void OPPROTO op_fpop(void)
1654 void OPPROTO op_fdecstp(void)
1656 env->fpstt = (env->fpstt - 1) & 7;
1657 env->fpus &= (~0x4700);
1660 void OPPROTO op_fincstp(void)
1662 env->fpstt = (env->fpstt + 1) & 7;
1663 env->fpus &= (~0x4700);
1666 void OPPROTO op_fmov_ST0_FT0(void)
1671 void OPPROTO op_fmov_FT0_STN(void)
1676 void OPPROTO op_fmov_ST0_STN(void)
1681 void OPPROTO op_fmov_STN_ST0(void)
1686 void OPPROTO op_fxchg_ST0_STN(void)
1694 /* FPU operations */
1696 /* XXX: handle nans */
1697 void OPPROTO op_fcom_ST0_FT0(void)
1699 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1701 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1702 else if (ST0 == FT0)
1703 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1707 /* XXX: handle nans */
1708 void OPPROTO op_fucom_ST0_FT0(void)
1710 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1712 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1713 else if (ST0 == FT0)
1714 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1718 /* XXX: handle nans */
1719 void OPPROTO op_fcomi_ST0_FT0(void)
1722 eflags = cc_table[CC_OP].compute_all();
1723 eflags &= ~(CC_Z | CC_P | CC_C);
1726 else if (ST0 == FT0)
1732 /* XXX: handle nans */
1733 void OPPROTO op_fucomi_ST0_FT0(void)
1736 eflags = cc_table[CC_OP].compute_all();
1737 eflags &= ~(CC_Z | CC_P | CC_C);
1740 else if (ST0 == FT0)
1746 void OPPROTO op_fadd_ST0_FT0(void)
1751 void OPPROTO op_fmul_ST0_FT0(void)
1756 void OPPROTO op_fsub_ST0_FT0(void)
1761 void OPPROTO op_fsubr_ST0_FT0(void)
1766 void OPPROTO op_fdiv_ST0_FT0(void)
1771 void OPPROTO op_fdivr_ST0_FT0(void)
1776 /* fp operations between STN and ST0 */
1778 void OPPROTO op_fadd_STN_ST0(void)
1783 void OPPROTO op_fmul_STN_ST0(void)
1788 void OPPROTO op_fsub_STN_ST0(void)
1793 void OPPROTO op_fsubr_STN_ST0(void)
1800 void OPPROTO op_fdiv_STN_ST0(void)
1805 void OPPROTO op_fdivr_STN_ST0(void)
1812 /* misc FPU operations */
1813 void OPPROTO op_fchs_ST0(void)
1818 void OPPROTO op_fabs_ST0(void)
1823 void OPPROTO op_fxam_ST0(void)
1828 void OPPROTO op_fld1_ST0(void)
1833 void OPPROTO op_fldl2t_ST0(void)
1838 void OPPROTO op_fldl2e_ST0(void)
1843 void OPPROTO op_fldpi_ST0(void)
1848 void OPPROTO op_fldlg2_ST0(void)
1853 void OPPROTO op_fldln2_ST0(void)
1858 void OPPROTO op_fldz_ST0(void)
1863 void OPPROTO op_fldz_FT0(void)
1868 /* associated heplers to reduce generated code length and to simplify
1869 relocation (FP constants are usually stored in .rodata section) */
1871 void OPPROTO op_f2xm1(void)
1876 void OPPROTO op_fyl2x(void)
1881 void OPPROTO op_fptan(void)
1886 void OPPROTO op_fpatan(void)
1891 void OPPROTO op_fxtract(void)
1896 void OPPROTO op_fprem1(void)
1902 void OPPROTO op_fprem(void)
1907 void OPPROTO op_fyl2xp1(void)
1912 void OPPROTO op_fsqrt(void)
1917 void OPPROTO op_fsincos(void)
1922 void OPPROTO op_frndint(void)
1927 void OPPROTO op_fscale(void)
1932 void OPPROTO op_fsin(void)
1937 void OPPROTO op_fcos(void)
1942 void OPPROTO op_fnstsw_A0(void)
1945 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1946 stw((void *)A0, fpus);
1949 void OPPROTO op_fnstsw_EAX(void)
1952 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1953 EAX = (EAX & 0xffff0000) | fpus;
1956 void OPPROTO op_fnstcw_A0(void)
1958 stw((void *)A0, env->fpuc);
1961 void OPPROTO op_fldcw_A0(void)
1964 env->fpuc = lduw((void *)A0);
1965 /* set rounding mode */
1966 switch(env->fpuc & RC_MASK) {
1969 rnd_type = FE_TONEAREST;
1972 rnd_type = FE_DOWNWARD;
1975 rnd_type = FE_UPWARD;
1978 rnd_type = FE_TOWARDZERO;
1981 fesetround(rnd_type);
1984 void OPPROTO op_fclex(void)
1986 env->fpus &= 0x7f00;
1989 void OPPROTO op_fninit(void)
2004 void OPPROTO op_fnstenv_A0(void)
2006 helper_fstenv((uint8_t *)A0, PARAM1);
2009 void OPPROTO op_fldenv_A0(void)
2011 helper_fldenv((uint8_t *)A0, PARAM1);
2014 void OPPROTO op_fnsave_A0(void)
2016 helper_fsave((uint8_t *)A0, PARAM1);
2019 void OPPROTO op_frstor_A0(void)
2021 helper_frstor((uint8_t *)A0, PARAM1);
2024 /* threading support */
2025 void OPPROTO op_lock(void)
2030 void OPPROTO op_unlock(void)