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_movl_T0_T1(void)
365 void OPPROTO op_movl_T1_im(void)
370 void OPPROTO op_addl_T1_im(void)
375 void OPPROTO op_movl_T1_A0(void)
380 void OPPROTO op_movl_A0_im(void)
385 void OPPROTO op_addl_A0_im(void)
390 void OPPROTO op_addl_A0_AL(void)
395 void OPPROTO op_andl_A0_ffff(void)
402 void OPPROTO op_ldub_T0_A0(void)
404 T0 = ldub((uint8_t *)A0);
407 void OPPROTO op_ldsb_T0_A0(void)
409 T0 = ldsb((int8_t *)A0);
412 void OPPROTO op_lduw_T0_A0(void)
414 T0 = lduw((uint8_t *)A0);
417 void OPPROTO op_ldsw_T0_A0(void)
419 T0 = ldsw((int8_t *)A0);
422 void OPPROTO op_ldl_T0_A0(void)
424 T0 = ldl((uint8_t *)A0);
427 void OPPROTO op_ldub_T1_A0(void)
429 T1 = ldub((uint8_t *)A0);
432 void OPPROTO op_ldsb_T1_A0(void)
434 T1 = ldsb((int8_t *)A0);
437 void OPPROTO op_lduw_T1_A0(void)
439 T1 = lduw((uint8_t *)A0);
442 void OPPROTO op_ldsw_T1_A0(void)
444 T1 = ldsw((int8_t *)A0);
447 void OPPROTO op_ldl_T1_A0(void)
449 T1 = ldl((uint8_t *)A0);
452 void OPPROTO op_stb_T0_A0(void)
454 stb((uint8_t *)A0, T0);
457 void OPPROTO op_stw_T0_A0(void)
459 stw((uint8_t *)A0, T0);
462 void OPPROTO op_stl_T0_A0(void)
464 stl((uint8_t *)A0, T0);
467 /* used for bit operations */
469 void OPPROTO op_add_bitw_A0_T1(void)
471 A0 += ((int32_t)T1 >> 4) << 1;
474 void OPPROTO op_add_bitl_A0_T1(void)
476 A0 += ((int32_t)T1 >> 5) << 2;
481 void OPPROTO op_jmp_T0(void)
486 void OPPROTO op_jmp_im(void)
491 void OPPROTO op_raise_interrupt(void)
494 unsigned int next_eip;
497 raise_interrupt(intno, 1, 0, next_eip);
500 void OPPROTO op_raise_exception(void)
503 exception_index = PARAM1;
504 raise_exception(exception_index);
507 void OPPROTO op_into(void)
510 eflags = cc_table[CC_OP].compute_all();
512 raise_interrupt(EXCP04_INTO, 1, 0, PARAM1);
517 void OPPROTO op_cli(void)
519 env->eflags &= ~IF_MASK;
522 void OPPROTO op_sti(void)
524 env->eflags |= IF_MASK;
528 /* vm86plus instructions */
529 void OPPROTO op_cli_vm(void)
531 env->eflags &= ~VIF_MASK;
534 void OPPROTO op_sti_vm(void)
536 env->eflags |= VIF_MASK;
537 if (env->eflags & VIP_MASK) {
539 raise_exception(EXCP0D_GPF);
545 void OPPROTO op_boundw(void)
548 low = ldsw((uint8_t *)A0);
549 high = ldsw((uint8_t *)A0 + 2);
551 if (v < low || v > high) {
553 raise_exception(EXCP05_BOUND);
558 void OPPROTO op_boundl(void)
561 low = ldl((uint8_t *)A0);
562 high = ldl((uint8_t *)A0 + 4);
564 if (v < low || v > high) {
566 raise_exception(EXCP05_BOUND);
571 void OPPROTO op_cmpxchg8b(void)
576 void OPPROTO op_jmp_tb_next(void)
578 JUMP_TB(PARAM1, 0, PARAM2);
581 void OPPROTO op_movl_T0_0(void)
586 /* multiple size ops */
591 #include "ops_template.h"
595 #include "ops_template.h"
599 #include "ops_template.h"
604 void OPPROTO op_movsbl_T0_T0(void)
609 void OPPROTO op_movzbl_T0_T0(void)
614 void OPPROTO op_movswl_T0_T0(void)
619 void OPPROTO op_movzwl_T0_T0(void)
624 void OPPROTO op_movswl_EAX_AX(void)
629 void OPPROTO op_movsbw_AX_AL(void)
631 EAX = (EAX & 0xffff0000) | ((int8_t)EAX & 0xffff);
634 void OPPROTO op_movslq_EDX_EAX(void)
636 EDX = (int32_t)EAX >> 31;
639 void OPPROTO op_movswl_DX_AX(void)
641 EDX = (EDX & 0xffff0000) | (((int16_t)EAX >> 15) & 0xffff);
646 void op_pushl_T0(void)
650 stl((void *)offset, T0);
651 /* modify ESP after to handle exceptions correctly */
655 void op_pushw_T0(void)
659 stw((void *)offset, T0);
660 /* modify ESP after to handle exceptions correctly */
664 void op_pushl_ss32_T0(void)
668 stl(env->seg_cache[R_SS].base + offset, T0);
669 /* modify ESP after to handle exceptions correctly */
673 void op_pushw_ss32_T0(void)
677 stw(env->seg_cache[R_SS].base + offset, T0);
678 /* modify ESP after to handle exceptions correctly */
682 void op_pushl_ss16_T0(void)
685 offset = (ESP - 4) & 0xffff;
686 stl(env->seg_cache[R_SS].base + offset, T0);
687 /* modify ESP after to handle exceptions correctly */
688 ESP = (ESP & ~0xffff) | offset;
691 void op_pushw_ss16_T0(void)
694 offset = (ESP - 2) & 0xffff;
695 stw(env->seg_cache[R_SS].base + offset, T0);
696 /* modify ESP after to handle exceptions correctly */
697 ESP = (ESP & ~0xffff) | offset;
700 /* NOTE: ESP update is done after */
701 void op_popl_T0(void)
703 T0 = ldl((void *)ESP);
706 void op_popw_T0(void)
708 T0 = lduw((void *)ESP);
711 void op_popl_ss32_T0(void)
713 T0 = ldl(env->seg_cache[R_SS].base + ESP);
716 void op_popw_ss32_T0(void)
718 T0 = lduw(env->seg_cache[R_SS].base + ESP);
721 void op_popl_ss16_T0(void)
723 T0 = ldl(env->seg_cache[R_SS].base + (ESP & 0xffff));
726 void op_popw_ss16_T0(void)
728 T0 = lduw(env->seg_cache[R_SS].base + (ESP & 0xffff));
731 void op_addl_ESP_4(void)
736 void op_addl_ESP_2(void)
741 void op_addw_ESP_4(void)
743 ESP = (ESP & ~0xffff) | ((ESP + 4) & 0xffff);
746 void op_addw_ESP_2(void)
748 ESP = (ESP & ~0xffff) | ((ESP + 2) & 0xffff);
751 void op_addl_ESP_im(void)
756 void op_addw_ESP_im(void)
758 ESP = (ESP & ~0xffff) | ((ESP + PARAM1) & 0xffff);
761 void OPPROTO op_rdtsc(void)
766 void OPPROTO op_cpuid(void)
774 void OPPROTO op_aam(void)
781 EAX = (EAX & ~0xffff) | al | (ah << 8);
785 void OPPROTO op_aad(void)
790 ah = (EAX >> 8) & 0xff;
791 al = ((ah * base) + al) & 0xff;
792 EAX = (EAX & ~0xffff) | al;
796 void OPPROTO op_aaa(void)
802 eflags = cc_table[CC_OP].compute_all();
805 ah = (EAX >> 8) & 0xff;
807 icarry = (al > 0xf9);
808 if (((al & 0x0f) > 9 ) || af) {
809 al = (al + 6) & 0x0f;
810 ah = (ah + 1 + icarry) & 0xff;
811 eflags |= CC_C | CC_A;
813 eflags &= ~(CC_C | CC_A);
816 EAX = (EAX & ~0xffff) | al | (ah << 8);
820 void OPPROTO op_aas(void)
826 eflags = cc_table[CC_OP].compute_all();
829 ah = (EAX >> 8) & 0xff;
832 if (((al & 0x0f) > 9 ) || af) {
833 al = (al - 6) & 0x0f;
834 ah = (ah - 1 - icarry) & 0xff;
835 eflags |= CC_C | CC_A;
837 eflags &= ~(CC_C | CC_A);
840 EAX = (EAX & ~0xffff) | al | (ah << 8);
844 void OPPROTO op_daa(void)
849 eflags = cc_table[CC_OP].compute_all();
855 if (((al & 0x0f) > 9 ) || af) {
856 al = (al + 6) & 0xff;
859 if ((al > 0x9f) || cf) {
860 al = (al + 0x60) & 0xff;
863 EAX = (EAX & ~0xff) | al;
864 /* well, speed is not an issue here, so we compute the flags by hand */
865 eflags |= (al == 0) << 6; /* zf */
866 eflags |= parity_table[al]; /* pf */
867 eflags |= (al & 0x80); /* sf */
871 void OPPROTO op_das(void)
876 eflags = cc_table[CC_OP].compute_all();
883 if (((al & 0x0f) > 9 ) || af) {
887 al = (al - 6) & 0xff;
889 if ((al1 > 0x99) || cf) {
890 al = (al - 0x60) & 0xff;
893 EAX = (EAX & ~0xff) | al;
894 /* well, speed is not an issue here, so we compute the flags by hand */
895 eflags |= (al == 0) << 6; /* zf */
896 eflags |= parity_table[al]; /* pf */
897 eflags |= (al & 0x80); /* sf */
901 /* segment handling */
903 void OPPROTO op_movl_seg_T0(void)
905 load_seg(PARAM1, T0 & 0xffff, PARAM2);
908 /* faster VM86 version */
909 void OPPROTO op_movl_seg_T0_vm(void)
913 selector = T0 & 0xffff;
914 /* env->segs[] access */
915 *(uint32_t *)((char *)env + PARAM1) = selector;
916 /* env->seg_cache[] access */
917 ((SegmentCache *)((char *)env + PARAM2))->base = (void *)(selector << 4);
920 void OPPROTO op_movl_T0_seg(void)
922 T0 = env->segs[PARAM1];
925 void OPPROTO op_movl_A0_seg(void)
927 A0 = *(unsigned long *)((char *)env + PARAM1);
930 void OPPROTO op_addl_A0_seg(void)
932 A0 += *(unsigned long *)((char *)env + PARAM1);
935 void OPPROTO op_lsl(void)
940 void OPPROTO op_lar(void)
947 /* slow jumps cases : in order to avoid calling a function with a
948 pointer (which can generate a stack frame on PowerPC), we use
949 op_setcc to set T0 and then call op_jcc. */
950 void OPPROTO op_jcc(void)
953 JUMP_TB(PARAM1, 0, PARAM2);
955 JUMP_TB(PARAM1, 1, PARAM3);
959 /* slow set cases (compute x86 flags) */
960 void OPPROTO op_seto_T0_cc(void)
963 eflags = cc_table[CC_OP].compute_all();
964 T0 = (eflags >> 11) & 1;
967 void OPPROTO op_setb_T0_cc(void)
969 T0 = cc_table[CC_OP].compute_c();
972 void OPPROTO op_setz_T0_cc(void)
975 eflags = cc_table[CC_OP].compute_all();
976 T0 = (eflags >> 6) & 1;
979 void OPPROTO op_setbe_T0_cc(void)
982 eflags = cc_table[CC_OP].compute_all();
983 T0 = (eflags & (CC_Z | CC_C)) != 0;
986 void OPPROTO op_sets_T0_cc(void)
989 eflags = cc_table[CC_OP].compute_all();
990 T0 = (eflags >> 7) & 1;
993 void OPPROTO op_setp_T0_cc(void)
996 eflags = cc_table[CC_OP].compute_all();
997 T0 = (eflags >> 2) & 1;
1000 void OPPROTO op_setl_T0_cc(void)
1003 eflags = cc_table[CC_OP].compute_all();
1004 T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
1007 void OPPROTO op_setle_T0_cc(void)
1010 eflags = cc_table[CC_OP].compute_all();
1011 T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
1014 void OPPROTO op_xor_T0_1(void)
1019 void OPPROTO op_set_cc_op(void)
1024 #define FL_UPDATE_MASK32 (TF_MASK | AC_MASK | ID_MASK)
1025 #define FL_UPDATE_MASK16 (TF_MASK)
1027 void OPPROTO op_movl_eflags_T0(void)
1031 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1032 DF = 1 - (2 * ((eflags >> 10) & 1));
1033 /* we also update some system flags as in user mode */
1034 env->eflags = (env->eflags & ~FL_UPDATE_MASK32) | (eflags & FL_UPDATE_MASK32);
1037 void OPPROTO op_movw_eflags_T0(void)
1041 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1042 DF = 1 - (2 * ((eflags >> 10) & 1));
1043 /* we also update some system flags as in user mode */
1044 env->eflags = (env->eflags & ~FL_UPDATE_MASK16) | (eflags & FL_UPDATE_MASK16);
1048 /* vm86plus version */
1049 void OPPROTO op_movw_eflags_T0_vm(void)
1053 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1054 DF = 1 - (2 * ((eflags >> 10) & 1));
1055 /* we also update some system flags as in user mode */
1056 env->eflags = (env->eflags & ~(FL_UPDATE_MASK16 | VIF_MASK)) |
1057 (eflags & FL_UPDATE_MASK16);
1058 if (eflags & IF_MASK) {
1059 env->eflags |= VIF_MASK;
1060 if (env->eflags & VIP_MASK) {
1062 raise_exception(EXCP0D_GPF);
1068 void OPPROTO op_movl_eflags_T0_vm(void)
1072 CC_SRC = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C);
1073 DF = 1 - (2 * ((eflags >> 10) & 1));
1074 /* we also update some system flags as in user mode */
1075 env->eflags = (env->eflags & ~(FL_UPDATE_MASK32 | VIF_MASK)) |
1076 (eflags & FL_UPDATE_MASK32);
1077 if (eflags & IF_MASK) {
1078 env->eflags |= VIF_MASK;
1079 if (env->eflags & VIP_MASK) {
1081 raise_exception(EXCP0D_GPF);
1088 /* XXX: compute only O flag */
1089 void OPPROTO op_movb_eflags_T0(void)
1092 of = cc_table[CC_OP].compute_all() & CC_O;
1093 CC_SRC = (T0 & (CC_S | CC_Z | CC_A | CC_P | CC_C)) | of;
1096 void OPPROTO op_movl_T0_eflags(void)
1099 eflags = cc_table[CC_OP].compute_all();
1100 eflags |= (DF & DF_MASK);
1101 eflags |= env->eflags & ~(VM_MASK | RF_MASK);
1105 /* vm86plus version */
1107 void OPPROTO op_movl_T0_eflags_vm(void)
1110 eflags = cc_table[CC_OP].compute_all();
1111 eflags |= (DF & DF_MASK);
1112 eflags |= env->eflags & ~(VM_MASK | RF_MASK | IF_MASK);
1113 if (env->eflags & VIF_MASK)
1119 void OPPROTO op_cld(void)
1124 void OPPROTO op_std(void)
1129 void OPPROTO op_clc(void)
1132 eflags = cc_table[CC_OP].compute_all();
1137 void OPPROTO op_stc(void)
1140 eflags = cc_table[CC_OP].compute_all();
1145 void OPPROTO op_cmc(void)
1148 eflags = cc_table[CC_OP].compute_all();
1153 void OPPROTO op_salc(void)
1156 cf = cc_table[CC_OP].compute_c();
1157 EAX = (EAX & ~0xff) | ((-cf) & 0xff);
1160 static int compute_all_eflags(void)
1165 static int compute_c_eflags(void)
1167 return CC_SRC & CC_C;
1170 static int compute_c_mul(void)
1177 static int compute_all_mul(void)
1179 int cf, pf, af, zf, sf, of;
1181 pf = 0; /* undefined */
1182 af = 0; /* undefined */
1183 zf = 0; /* undefined */
1184 sf = 0; /* undefined */
1186 return cf | pf | af | zf | sf | of;
1189 CCTable cc_table[CC_OP_NB] = {
1190 [CC_OP_DYNAMIC] = { /* should never happen */ },
1192 [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },
1194 [CC_OP_MUL] = { compute_all_mul, compute_c_mul },
1196 [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },
1197 [CC_OP_ADDW] = { compute_all_addw, compute_c_addw },
1198 [CC_OP_ADDL] = { compute_all_addl, compute_c_addl },
1200 [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },
1201 [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw },
1202 [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl },
1204 [CC_OP_SUBB] = { compute_all_subb, compute_c_subb },
1205 [CC_OP_SUBW] = { compute_all_subw, compute_c_subw },
1206 [CC_OP_SUBL] = { compute_all_subl, compute_c_subl },
1208 [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb },
1209 [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw },
1210 [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl },
1212 [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },
1213 [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },
1214 [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },
1216 [CC_OP_INCB] = { compute_all_incb, compute_c_incl },
1217 [CC_OP_INCW] = { compute_all_incw, compute_c_incl },
1218 [CC_OP_INCL] = { compute_all_incl, compute_c_incl },
1220 [CC_OP_DECB] = { compute_all_decb, compute_c_incl },
1221 [CC_OP_DECW] = { compute_all_decw, compute_c_incl },
1222 [CC_OP_DECL] = { compute_all_decl, compute_c_incl },
1224 [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },
1225 [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },
1226 [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },
1228 [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },
1229 [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },
1230 [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },
1233 /* floating point support. Some of the code for complicated x87
1234 functions comes from the LGPL'ed x86 emulator found in the Willows
1235 TWIN windows emulator. */
1237 #if defined(__powerpc__)
1238 extern CPU86_LDouble copysign(CPU86_LDouble, CPU86_LDouble);
1240 /* correct (but slow) PowerPC rint() (glibc version is incorrect) */
1241 double qemu_rint(double x)
1243 double y = 4503599627370496.0;
1254 #define rint qemu_rint
1259 void OPPROTO op_flds_FT0_A0(void)
1261 #ifdef USE_FP_CONVERT
1262 FP_CONVERT.i32 = ldl((void *)A0);
1265 FT0 = ldfl((void *)A0);
1269 void OPPROTO op_fldl_FT0_A0(void)
1271 #ifdef USE_FP_CONVERT
1272 FP_CONVERT.i64 = ldq((void *)A0);
1275 FT0 = ldfq((void *)A0);
1279 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1280 #ifdef USE_INT_TO_FLOAT_HELPERS
1282 void helper_fild_FT0_A0(void)
1284 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1287 void helper_fildl_FT0_A0(void)
1289 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1292 void helper_fildll_FT0_A0(void)
1294 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1297 void OPPROTO op_fild_FT0_A0(void)
1299 helper_fild_FT0_A0();
1302 void OPPROTO op_fildl_FT0_A0(void)
1304 helper_fildl_FT0_A0();
1307 void OPPROTO op_fildll_FT0_A0(void)
1309 helper_fildll_FT0_A0();
1314 void OPPROTO op_fild_FT0_A0(void)
1316 #ifdef USE_FP_CONVERT
1317 FP_CONVERT.i32 = ldsw((void *)A0);
1318 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1320 FT0 = (CPU86_LDouble)ldsw((void *)A0);
1324 void OPPROTO op_fildl_FT0_A0(void)
1326 #ifdef USE_FP_CONVERT
1327 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1328 FT0 = (CPU86_LDouble)FP_CONVERT.i32;
1330 FT0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1334 void OPPROTO op_fildll_FT0_A0(void)
1336 #ifdef USE_FP_CONVERT
1337 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1338 FT0 = (CPU86_LDouble)FP_CONVERT.i64;
1340 FT0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1347 void OPPROTO op_flds_ST0_A0(void)
1349 #ifdef USE_FP_CONVERT
1350 FP_CONVERT.i32 = ldl((void *)A0);
1353 ST0 = ldfl((void *)A0);
1357 void OPPROTO op_fldl_ST0_A0(void)
1359 #ifdef USE_FP_CONVERT
1360 FP_CONVERT.i64 = ldq((void *)A0);
1363 ST0 = ldfq((void *)A0);
1367 #ifdef USE_X86LDOUBLE
1368 void OPPROTO op_fldt_ST0_A0(void)
1370 ST0 = *(long double *)A0;
1373 void OPPROTO op_fldt_ST0_A0(void)
1375 helper_fldt_ST0_A0();
1379 /* helpers are needed to avoid static constant reference. XXX: find a better way */
1380 #ifdef USE_INT_TO_FLOAT_HELPERS
1382 void helper_fild_ST0_A0(void)
1384 ST0 = (CPU86_LDouble)ldsw((void *)A0);
1387 void helper_fildl_ST0_A0(void)
1389 ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1392 void helper_fildll_ST0_A0(void)
1394 ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1397 void OPPROTO op_fild_ST0_A0(void)
1399 helper_fild_ST0_A0();
1402 void OPPROTO op_fildl_ST0_A0(void)
1404 helper_fildl_ST0_A0();
1407 void OPPROTO op_fildll_ST0_A0(void)
1409 helper_fildll_ST0_A0();
1414 void OPPROTO op_fild_ST0_A0(void)
1416 #ifdef USE_FP_CONVERT
1417 FP_CONVERT.i32 = ldsw((void *)A0);
1418 ST0 = (CPU86_LDouble)FP_CONVERT.i32;
1420 ST0 = (CPU86_LDouble)ldsw((void *)A0);
1424 void OPPROTO op_fildl_ST0_A0(void)
1426 #ifdef USE_FP_CONVERT
1427 FP_CONVERT.i32 = (int32_t) ldl((void *)A0);
1428 ST0 = (CPU86_LDouble)FP_CONVERT.i32;
1430 ST0 = (CPU86_LDouble)((int32_t)ldl((void *)A0));
1434 void OPPROTO op_fildll_ST0_A0(void)
1436 #ifdef USE_FP_CONVERT
1437 FP_CONVERT.i64 = (int64_t) ldq((void *)A0);
1438 ST0 = (CPU86_LDouble)FP_CONVERT.i64;
1440 ST0 = (CPU86_LDouble)((int64_t)ldq((void *)A0));
1448 void OPPROTO op_fsts_ST0_A0(void)
1450 #ifdef USE_FP_CONVERT
1451 FP_CONVERT.f = (float)ST0;
1452 stfl((void *)A0, FP_CONVERT.f);
1454 stfl((void *)A0, (float)ST0);
1458 void OPPROTO op_fstl_ST0_A0(void)
1460 stfq((void *)A0, (double)ST0);
1463 #ifdef USE_X86LDOUBLE
1464 void OPPROTO op_fstt_ST0_A0(void)
1466 *(long double *)A0 = ST0;
1469 void OPPROTO op_fstt_ST0_A0(void)
1471 helper_fstt_ST0_A0();
1475 void OPPROTO op_fist_ST0_A0(void)
1477 #if defined(__sparc__) && !defined(__sparc_v9__)
1478 register CPU86_LDouble d asm("o0");
1486 if (val != (int16_t)val)
1488 stw((void *)A0, val);
1491 void OPPROTO op_fistl_ST0_A0(void)
1493 #if defined(__sparc__) && !defined(__sparc_v9__)
1494 register CPU86_LDouble d asm("o0");
1502 stl((void *)A0, val);
1505 void OPPROTO op_fistll_ST0_A0(void)
1507 #if defined(__sparc__) && !defined(__sparc_v9__)
1508 register CPU86_LDouble d asm("o0");
1516 stq((void *)A0, val);
1519 void OPPROTO op_fbld_ST0_A0(void)
1521 helper_fbld_ST0_A0();
1524 void OPPROTO op_fbst_ST0_A0(void)
1526 helper_fbst_ST0_A0();
1531 void OPPROTO op_fpush(void)
1536 void OPPROTO op_fpop(void)
1541 void OPPROTO op_fdecstp(void)
1543 env->fpstt = (env->fpstt - 1) & 7;
1544 env->fpus &= (~0x4700);
1547 void OPPROTO op_fincstp(void)
1549 env->fpstt = (env->fpstt + 1) & 7;
1550 env->fpus &= (~0x4700);
1553 void OPPROTO op_fmov_ST0_FT0(void)
1558 void OPPROTO op_fmov_FT0_STN(void)
1563 void OPPROTO op_fmov_ST0_STN(void)
1568 void OPPROTO op_fmov_STN_ST0(void)
1573 void OPPROTO op_fxchg_ST0_STN(void)
1581 /* FPU operations */
1583 /* XXX: handle nans */
1584 void OPPROTO op_fcom_ST0_FT0(void)
1586 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1588 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1589 else if (ST0 == FT0)
1590 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1594 /* XXX: handle nans */
1595 void OPPROTO op_fucom_ST0_FT0(void)
1597 env->fpus &= (~0x4500); /* (C3,C2,C0) <-- 000 */
1599 env->fpus |= 0x100; /* (C3,C2,C0) <-- 001 */
1600 else if (ST0 == FT0)
1601 env->fpus |= 0x4000; /* (C3,C2,C0) <-- 100 */
1605 /* XXX: handle nans */
1606 void OPPROTO op_fcomi_ST0_FT0(void)
1609 eflags = cc_table[CC_OP].compute_all();
1610 eflags &= ~(CC_Z | CC_P | CC_C);
1613 else if (ST0 == FT0)
1619 /* XXX: handle nans */
1620 void OPPROTO op_fucomi_ST0_FT0(void)
1623 eflags = cc_table[CC_OP].compute_all();
1624 eflags &= ~(CC_Z | CC_P | CC_C);
1627 else if (ST0 == FT0)
1633 void OPPROTO op_fadd_ST0_FT0(void)
1638 void OPPROTO op_fmul_ST0_FT0(void)
1643 void OPPROTO op_fsub_ST0_FT0(void)
1648 void OPPROTO op_fsubr_ST0_FT0(void)
1653 void OPPROTO op_fdiv_ST0_FT0(void)
1658 void OPPROTO op_fdivr_ST0_FT0(void)
1663 /* fp operations between STN and ST0 */
1665 void OPPROTO op_fadd_STN_ST0(void)
1670 void OPPROTO op_fmul_STN_ST0(void)
1675 void OPPROTO op_fsub_STN_ST0(void)
1680 void OPPROTO op_fsubr_STN_ST0(void)
1687 void OPPROTO op_fdiv_STN_ST0(void)
1692 void OPPROTO op_fdivr_STN_ST0(void)
1699 /* misc FPU operations */
1700 void OPPROTO op_fchs_ST0(void)
1705 void OPPROTO op_fabs_ST0(void)
1710 void OPPROTO op_fxam_ST0(void)
1715 void OPPROTO op_fld1_ST0(void)
1720 void OPPROTO op_fldl2t_ST0(void)
1725 void OPPROTO op_fldl2e_ST0(void)
1730 void OPPROTO op_fldpi_ST0(void)
1735 void OPPROTO op_fldlg2_ST0(void)
1740 void OPPROTO op_fldln2_ST0(void)
1745 void OPPROTO op_fldz_ST0(void)
1750 void OPPROTO op_fldz_FT0(void)
1755 /* associated heplers to reduce generated code length and to simplify
1756 relocation (FP constants are usually stored in .rodata section) */
1758 void OPPROTO op_f2xm1(void)
1763 void OPPROTO op_fyl2x(void)
1768 void OPPROTO op_fptan(void)
1773 void OPPROTO op_fpatan(void)
1778 void OPPROTO op_fxtract(void)
1783 void OPPROTO op_fprem1(void)
1789 void OPPROTO op_fprem(void)
1794 void OPPROTO op_fyl2xp1(void)
1799 void OPPROTO op_fsqrt(void)
1804 void OPPROTO op_fsincos(void)
1809 void OPPROTO op_frndint(void)
1814 void OPPROTO op_fscale(void)
1819 void OPPROTO op_fsin(void)
1824 void OPPROTO op_fcos(void)
1829 void OPPROTO op_fnstsw_A0(void)
1832 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1833 stw((void *)A0, fpus);
1836 void OPPROTO op_fnstsw_EAX(void)
1839 fpus = (env->fpus & ~0x3800) | (env->fpstt & 0x7) << 11;
1840 EAX = (EAX & 0xffff0000) | fpus;
1843 void OPPROTO op_fnstcw_A0(void)
1845 stw((void *)A0, env->fpuc);
1848 void OPPROTO op_fldcw_A0(void)
1851 env->fpuc = lduw((void *)A0);
1852 /* set rounding mode */
1853 switch(env->fpuc & RC_MASK) {
1856 rnd_type = FE_TONEAREST;
1859 rnd_type = FE_DOWNWARD;
1862 rnd_type = FE_UPWARD;
1865 rnd_type = FE_TOWARDZERO;
1868 fesetround(rnd_type);
1871 void OPPROTO op_fclex(void)
1873 env->fpus &= 0x7f00;
1876 void OPPROTO op_fninit(void)
1891 void OPPROTO op_fnstenv_A0(void)
1893 helper_fstenv((uint8_t *)A0, PARAM1);
1896 void OPPROTO op_fldenv_A0(void)
1898 helper_fldenv((uint8_t *)A0, PARAM1);
1901 void OPPROTO op_fnsave_A0(void)
1903 helper_fsave((uint8_t *)A0, PARAM1);
1906 void OPPROTO op_frstor_A0(void)
1908 helper_frstor((uint8_t *)A0, PARAM1);
1911 /* threading support */
1912 void OPPROTO op_lock(void)
1917 void OPPROTO op_unlock(void)