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| 1 | 7d13299d | bellard | /*
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| 2 | 7d13299d | bellard | * i386 translation
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| 3 | 7d13299d | bellard | *
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| 4 | 7d13299d | bellard | * Copyright (c) 2003 Fabrice Bellard
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| 5 | 7d13299d | bellard | *
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| 6 | 3ef693a0 | bellard | * This library is free software; you can redistribute it and/or
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| 7 | 3ef693a0 | bellard | * modify it under the terms of the GNU Lesser General Public
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| 8 | 3ef693a0 | bellard | * License as published by the Free Software Foundation; either
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| 9 | 3ef693a0 | bellard | * version 2 of the License, or (at your option) any later version.
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| 10 | 7d13299d | bellard | *
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| 11 | 3ef693a0 | bellard | * This library is distributed in the hope that it will be useful,
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| 12 | 3ef693a0 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | 3ef693a0 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | 3ef693a0 | bellard | * Lesser General Public License for more details.
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| 15 | 7d13299d | bellard | *
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| 16 | 3ef693a0 | bellard | * You should have received a copy of the GNU Lesser General Public
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| 17 | 3ef693a0 | bellard | * License along with this library; if not, write to the Free Software
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| 18 | 3ef693a0 | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 19 | 7d13299d | bellard | */
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| 20 | 367e86e8 | bellard | #include <stdarg.h> |
| 21 | 367e86e8 | bellard | #include <stdlib.h> |
| 22 | 367e86e8 | bellard | #include <stdio.h> |
| 23 | 367e86e8 | bellard | #include <string.h> |
| 24 | 367e86e8 | bellard | #include <inttypes.h> |
| 25 | 9de5e440 | bellard | #include <signal.h> |
| 26 | 367e86e8 | bellard | #include <assert.h> |
| 27 | 367e86e8 | bellard | |
| 28 | 0ecfa993 | bellard | #define DEBUG_DISAS
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| 29 | 0ecfa993 | bellard | |
| 30 | 586314f2 | bellard | #define IN_OP_I386
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| 31 | 586314f2 | bellard | #include "cpu-i386.h" |
| 32 | 586314f2 | bellard | |
| 33 | 586314f2 | bellard | /* dump all code */
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| 34 | 0ecfa993 | bellard | #ifdef DEBUG_DISAS
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| 35 | 0ecfa993 | bellard | #include "dis-asm.h" |
| 36 | 0ecfa993 | bellard | #endif
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| 37 | 0ecfa993 | bellard | |
| 38 | 6dbad63e | bellard | #ifndef offsetof
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| 39 | 6dbad63e | bellard | #define offsetof(type, field) ((size_t) &((type *)0)->field) |
| 40 | 6dbad63e | bellard | #endif
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| 41 | 6dbad63e | bellard | |
| 42 | 04369ff2 | bellard | /* XXX: move that elsewhere */
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| 43 | dc99065b | bellard | static uint16_t *gen_opc_ptr;
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| 44 | dc99065b | bellard | static uint32_t *gen_opparam_ptr;
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| 45 | 367e86e8 | bellard | int __op_param1, __op_param2, __op_param3;
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| 46 | 367e86e8 | bellard | |
| 47 | 04369ff2 | bellard | #ifdef __i386__
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| 48 | 04369ff2 | bellard | static inline void flush_icache_range(unsigned long start, unsigned long stop) |
| 49 | 04369ff2 | bellard | {
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| 50 | 04369ff2 | bellard | } |
| 51 | 04369ff2 | bellard | #endif
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| 52 | 04369ff2 | bellard | |
| 53 | 04369ff2 | bellard | #ifdef __powerpc__
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| 54 | 04369ff2 | bellard | |
| 55 | 04369ff2 | bellard | #define MIN_CACHE_LINE_SIZE 8 /* conservative value */ |
| 56 | 04369ff2 | bellard | |
| 57 | 04369ff2 | bellard | static void inline flush_icache_range(unsigned long start, unsigned long stop) |
| 58 | 04369ff2 | bellard | {
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| 59 | 04369ff2 | bellard | unsigned long p; |
| 60 | 04369ff2 | bellard | |
| 61 | 04369ff2 | bellard | p = start & ~(MIN_CACHE_LINE_SIZE - 1);
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| 62 | 04369ff2 | bellard | stop = (stop + MIN_CACHE_LINE_SIZE - 1) & ~(MIN_CACHE_LINE_SIZE - 1); |
| 63 | 04369ff2 | bellard | |
| 64 | 04369ff2 | bellard | for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
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| 65 | 04369ff2 | bellard | asm ("dcbst 0,%0;" : : "r"(p) : "memory"); |
| 66 | 04369ff2 | bellard | } |
| 67 | 04369ff2 | bellard | asm ("sync"); |
| 68 | 04369ff2 | bellard | for (p = start; p < stop; p += MIN_CACHE_LINE_SIZE) {
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| 69 | 04369ff2 | bellard | asm ("icbi 0,%0; sync;" : : "r"(p) : "memory"); |
| 70 | 04369ff2 | bellard | } |
| 71 | 04369ff2 | bellard | asm ("sync"); |
| 72 | 04369ff2 | bellard | asm ("isync"); |
| 73 | 04369ff2 | bellard | } |
| 74 | 04369ff2 | bellard | #endif
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| 75 | 04369ff2 | bellard | |
| 76 | 586314f2 | bellard | extern FILE *logfile;
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| 77 | 586314f2 | bellard | extern int loglevel; |
| 78 | 0ecfa993 | bellard | |
| 79 | 367e86e8 | bellard | #define PREFIX_REPZ 1 |
| 80 | 367e86e8 | bellard | #define PREFIX_REPNZ 2 |
| 81 | 367e86e8 | bellard | #define PREFIX_LOCK 4 |
| 82 | 367e86e8 | bellard | #define PREFIX_CS 8 |
| 83 | 367e86e8 | bellard | #define PREFIX_SS 0x10 |
| 84 | 367e86e8 | bellard | #define PREFIX_DS 0x20 |
| 85 | 367e86e8 | bellard | #define PREFIX_ES 0x40 |
| 86 | 367e86e8 | bellard | #define PREFIX_FS 0x80 |
| 87 | 367e86e8 | bellard | #define PREFIX_GS 0x100 |
| 88 | 367e86e8 | bellard | #define PREFIX_DATA 0x200 |
| 89 | 367e86e8 | bellard | #define PREFIX_ADR 0x400 |
| 90 | 367e86e8 | bellard | #define PREFIX_FWAIT 0x800 |
| 91 | 367e86e8 | bellard | |
| 92 | 367e86e8 | bellard | typedef struct DisasContext { |
| 93 | 367e86e8 | bellard | /* current insn context */
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| 94 | 367e86e8 | bellard | int prefix;
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| 95 | 367e86e8 | bellard | int aflag, dflag;
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| 96 | dab2ed99 | bellard | uint8_t *pc; /* pc = eip + cs_base */
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| 97 | 6dbad63e | bellard | int is_jmp; /* 1 = means jump (stop translation), 2 means CPU |
| 98 | 6dbad63e | bellard | static state change (stop translation) */
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| 99 | 6dbad63e | bellard | /* current block context */
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| 100 | dab2ed99 | bellard | uint8_t *cs_base; /* base of CS segment */
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| 101 | 6dbad63e | bellard | int code32; /* 32 bit code segment */ |
| 102 | dab2ed99 | bellard | int ss32; /* 32 bit stack segment */ |
| 103 | 6dbad63e | bellard | int cc_op; /* current CC operation */ |
| 104 | 6dbad63e | bellard | int addseg; /* non zero if either DS/ES/SS have a non zero base */ |
| 105 | 6dbad63e | bellard | int f_st; /* currently unused */ |
| 106 | 367e86e8 | bellard | } DisasContext; |
| 107 | 367e86e8 | bellard | |
| 108 | 367e86e8 | bellard | /* i386 arith/logic operations */
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| 109 | 367e86e8 | bellard | enum {
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| 110 | 367e86e8 | bellard | OP_ADDL, |
| 111 | 367e86e8 | bellard | OP_ORL, |
| 112 | 367e86e8 | bellard | OP_ADCL, |
| 113 | 367e86e8 | bellard | OP_SBBL, |
| 114 | 367e86e8 | bellard | OP_ANDL, |
| 115 | 367e86e8 | bellard | OP_SUBL, |
| 116 | 367e86e8 | bellard | OP_XORL, |
| 117 | 367e86e8 | bellard | OP_CMPL, |
| 118 | 367e86e8 | bellard | }; |
| 119 | 367e86e8 | bellard | |
| 120 | 367e86e8 | bellard | /* i386 shift ops */
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| 121 | 367e86e8 | bellard | enum {
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| 122 | 367e86e8 | bellard | OP_ROL, |
| 123 | 367e86e8 | bellard | OP_ROR, |
| 124 | 367e86e8 | bellard | OP_RCL, |
| 125 | 367e86e8 | bellard | OP_RCR, |
| 126 | 367e86e8 | bellard | OP_SHL, |
| 127 | 367e86e8 | bellard | OP_SHR, |
| 128 | 367e86e8 | bellard | OP_SHL1, /* undocumented */
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| 129 | 367e86e8 | bellard | OP_SAR = 7,
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| 130 | 367e86e8 | bellard | }; |
| 131 | 367e86e8 | bellard | |
| 132 | dc99065b | bellard | enum {
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| 133 | dc99065b | bellard | #define DEF(s) INDEX_op_ ## s, |
| 134 | dc99065b | bellard | #include "opc-i386.h" |
| 135 | dc99065b | bellard | #undef DEF
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| 136 | dc99065b | bellard | NB_OPS, |
| 137 | dc99065b | bellard | }; |
| 138 | dc99065b | bellard | |
| 139 | 367e86e8 | bellard | #include "op-i386.h" |
| 140 | 367e86e8 | bellard | |
| 141 | 367e86e8 | bellard | /* operand size */
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| 142 | 367e86e8 | bellard | enum {
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| 143 | 367e86e8 | bellard | OT_BYTE = 0,
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| 144 | 367e86e8 | bellard | OT_WORD, |
| 145 | 367e86e8 | bellard | OT_LONG, |
| 146 | 367e86e8 | bellard | OT_QUAD, |
| 147 | 367e86e8 | bellard | }; |
| 148 | 367e86e8 | bellard | |
| 149 | 367e86e8 | bellard | enum {
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| 150 | 367e86e8 | bellard | /* I386 int registers */
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| 151 | 367e86e8 | bellard | OR_EAX, /* MUST be even numbered */
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| 152 | 367e86e8 | bellard | OR_ECX, |
| 153 | 367e86e8 | bellard | OR_EDX, |
| 154 | 367e86e8 | bellard | OR_EBX, |
| 155 | 367e86e8 | bellard | OR_ESP, |
| 156 | 367e86e8 | bellard | OR_EBP, |
| 157 | 367e86e8 | bellard | OR_ESI, |
| 158 | 367e86e8 | bellard | OR_EDI, |
| 159 | 367e86e8 | bellard | OR_TMP0, /* temporary operand register */
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| 160 | 367e86e8 | bellard | OR_TMP1, |
| 161 | 367e86e8 | bellard | OR_A0, /* temporary register used when doing address evaluation */
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| 162 | 367e86e8 | bellard | OR_ZERO, /* fixed zero register */
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| 163 | 367e86e8 | bellard | NB_OREGS, |
| 164 | 367e86e8 | bellard | }; |
| 165 | 367e86e8 | bellard | |
| 166 | 367e86e8 | bellard | typedef void (GenOpFunc)(void); |
| 167 | 367e86e8 | bellard | typedef void (GenOpFunc1)(long); |
| 168 | 367e86e8 | bellard | typedef void (GenOpFunc2)(long, long); |
| 169 | 367e86e8 | bellard | |
| 170 | 367e86e8 | bellard | static GenOpFunc *gen_op_mov_reg_T0[3][8] = { |
| 171 | 367e86e8 | bellard | [OT_BYTE] = {
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| 172 | 367e86e8 | bellard | gen_op_movb_EAX_T0, |
| 173 | 367e86e8 | bellard | gen_op_movb_ECX_T0, |
| 174 | 367e86e8 | bellard | gen_op_movb_EDX_T0, |
| 175 | 367e86e8 | bellard | gen_op_movb_EBX_T0, |
| 176 | 367e86e8 | bellard | gen_op_movh_EAX_T0, |
| 177 | 367e86e8 | bellard | gen_op_movh_ECX_T0, |
| 178 | 367e86e8 | bellard | gen_op_movh_EDX_T0, |
| 179 | 367e86e8 | bellard | gen_op_movh_EBX_T0, |
| 180 | 367e86e8 | bellard | }, |
| 181 | 367e86e8 | bellard | [OT_WORD] = {
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| 182 | 367e86e8 | bellard | gen_op_movw_EAX_T0, |
| 183 | 367e86e8 | bellard | gen_op_movw_ECX_T0, |
| 184 | 367e86e8 | bellard | gen_op_movw_EDX_T0, |
| 185 | 367e86e8 | bellard | gen_op_movw_EBX_T0, |
| 186 | 367e86e8 | bellard | gen_op_movw_ESP_T0, |
| 187 | 367e86e8 | bellard | gen_op_movw_EBP_T0, |
| 188 | 367e86e8 | bellard | gen_op_movw_ESI_T0, |
| 189 | 367e86e8 | bellard | gen_op_movw_EDI_T0, |
| 190 | 367e86e8 | bellard | }, |
| 191 | 367e86e8 | bellard | [OT_LONG] = {
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| 192 | 367e86e8 | bellard | gen_op_movl_EAX_T0, |
| 193 | 367e86e8 | bellard | gen_op_movl_ECX_T0, |
| 194 | 367e86e8 | bellard | gen_op_movl_EDX_T0, |
| 195 | 367e86e8 | bellard | gen_op_movl_EBX_T0, |
| 196 | 367e86e8 | bellard | gen_op_movl_ESP_T0, |
| 197 | 367e86e8 | bellard | gen_op_movl_EBP_T0, |
| 198 | 367e86e8 | bellard | gen_op_movl_ESI_T0, |
| 199 | 367e86e8 | bellard | gen_op_movl_EDI_T0, |
| 200 | 367e86e8 | bellard | }, |
| 201 | 367e86e8 | bellard | }; |
| 202 | 367e86e8 | bellard | |
| 203 | 367e86e8 | bellard | static GenOpFunc *gen_op_mov_reg_T1[3][8] = { |
| 204 | 367e86e8 | bellard | [OT_BYTE] = {
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| 205 | 367e86e8 | bellard | gen_op_movb_EAX_T1, |
| 206 | 367e86e8 | bellard | gen_op_movb_ECX_T1, |
| 207 | 367e86e8 | bellard | gen_op_movb_EDX_T1, |
| 208 | 367e86e8 | bellard | gen_op_movb_EBX_T1, |
| 209 | 367e86e8 | bellard | gen_op_movh_EAX_T1, |
| 210 | 367e86e8 | bellard | gen_op_movh_ECX_T1, |
| 211 | 367e86e8 | bellard | gen_op_movh_EDX_T1, |
| 212 | 367e86e8 | bellard | gen_op_movh_EBX_T1, |
| 213 | 367e86e8 | bellard | }, |
| 214 | 367e86e8 | bellard | [OT_WORD] = {
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| 215 | 367e86e8 | bellard | gen_op_movw_EAX_T1, |
| 216 | 367e86e8 | bellard | gen_op_movw_ECX_T1, |
| 217 | 367e86e8 | bellard | gen_op_movw_EDX_T1, |
| 218 | 367e86e8 | bellard | gen_op_movw_EBX_T1, |
| 219 | 367e86e8 | bellard | gen_op_movw_ESP_T1, |
| 220 | 367e86e8 | bellard | gen_op_movw_EBP_T1, |
| 221 | 367e86e8 | bellard | gen_op_movw_ESI_T1, |
| 222 | 367e86e8 | bellard | gen_op_movw_EDI_T1, |
| 223 | 367e86e8 | bellard | }, |
| 224 | 367e86e8 | bellard | [OT_LONG] = {
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| 225 | 367e86e8 | bellard | gen_op_movl_EAX_T1, |
| 226 | 367e86e8 | bellard | gen_op_movl_ECX_T1, |
| 227 | 367e86e8 | bellard | gen_op_movl_EDX_T1, |
| 228 | 367e86e8 | bellard | gen_op_movl_EBX_T1, |
| 229 | 367e86e8 | bellard | gen_op_movl_ESP_T1, |
| 230 | 367e86e8 | bellard | gen_op_movl_EBP_T1, |
| 231 | 367e86e8 | bellard | gen_op_movl_ESI_T1, |
| 232 | 367e86e8 | bellard | gen_op_movl_EDI_T1, |
| 233 | 367e86e8 | bellard | }, |
| 234 | 367e86e8 | bellard | }; |
| 235 | 367e86e8 | bellard | |
| 236 | 367e86e8 | bellard | static GenOpFunc *gen_op_mov_reg_A0[2][8] = { |
| 237 | 367e86e8 | bellard | [0] = {
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| 238 | 367e86e8 | bellard | gen_op_movw_EAX_A0, |
| 239 | 367e86e8 | bellard | gen_op_movw_ECX_A0, |
| 240 | 367e86e8 | bellard | gen_op_movw_EDX_A0, |
| 241 | 367e86e8 | bellard | gen_op_movw_EBX_A0, |
| 242 | 367e86e8 | bellard | gen_op_movw_ESP_A0, |
| 243 | 367e86e8 | bellard | gen_op_movw_EBP_A0, |
| 244 | 367e86e8 | bellard | gen_op_movw_ESI_A0, |
| 245 | 367e86e8 | bellard | gen_op_movw_EDI_A0, |
| 246 | 367e86e8 | bellard | }, |
| 247 | 367e86e8 | bellard | [1] = {
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| 248 | 367e86e8 | bellard | gen_op_movl_EAX_A0, |
| 249 | 367e86e8 | bellard | gen_op_movl_ECX_A0, |
| 250 | 367e86e8 | bellard | gen_op_movl_EDX_A0, |
| 251 | 367e86e8 | bellard | gen_op_movl_EBX_A0, |
| 252 | 367e86e8 | bellard | gen_op_movl_ESP_A0, |
| 253 | 367e86e8 | bellard | gen_op_movl_EBP_A0, |
| 254 | 367e86e8 | bellard | gen_op_movl_ESI_A0, |
| 255 | 367e86e8 | bellard | gen_op_movl_EDI_A0, |
| 256 | 367e86e8 | bellard | }, |
| 257 | 367e86e8 | bellard | }; |
| 258 | 367e86e8 | bellard | |
| 259 | 367e86e8 | bellard | static GenOpFunc *gen_op_mov_TN_reg[3][2][8] = |
| 260 | 367e86e8 | bellard | {
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| 261 | 367e86e8 | bellard | [OT_BYTE] = {
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| 262 | 367e86e8 | bellard | {
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| 263 | 367e86e8 | bellard | gen_op_movl_T0_EAX, |
| 264 | 367e86e8 | bellard | gen_op_movl_T0_ECX, |
| 265 | 367e86e8 | bellard | gen_op_movl_T0_EDX, |
| 266 | 367e86e8 | bellard | gen_op_movl_T0_EBX, |
| 267 | 367e86e8 | bellard | gen_op_movh_T0_EAX, |
| 268 | 367e86e8 | bellard | gen_op_movh_T0_ECX, |
| 269 | 367e86e8 | bellard | gen_op_movh_T0_EDX, |
| 270 | 367e86e8 | bellard | gen_op_movh_T0_EBX, |
| 271 | 367e86e8 | bellard | }, |
| 272 | 367e86e8 | bellard | {
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| 273 | 367e86e8 | bellard | gen_op_movl_T1_EAX, |
| 274 | 367e86e8 | bellard | gen_op_movl_T1_ECX, |
| 275 | 367e86e8 | bellard | gen_op_movl_T1_EDX, |
| 276 | 367e86e8 | bellard | gen_op_movl_T1_EBX, |
| 277 | 367e86e8 | bellard | gen_op_movh_T1_EAX, |
| 278 | 367e86e8 | bellard | gen_op_movh_T1_ECX, |
| 279 | 367e86e8 | bellard | gen_op_movh_T1_EDX, |
| 280 | 367e86e8 | bellard | gen_op_movh_T1_EBX, |
| 281 | 367e86e8 | bellard | }, |
| 282 | 367e86e8 | bellard | }, |
| 283 | 367e86e8 | bellard | [OT_WORD] = {
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| 284 | 367e86e8 | bellard | {
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| 285 | 367e86e8 | bellard | gen_op_movl_T0_EAX, |
| 286 | 367e86e8 | bellard | gen_op_movl_T0_ECX, |
| 287 | 367e86e8 | bellard | gen_op_movl_T0_EDX, |
| 288 | 367e86e8 | bellard | gen_op_movl_T0_EBX, |
| 289 | 367e86e8 | bellard | gen_op_movl_T0_ESP, |
| 290 | 367e86e8 | bellard | gen_op_movl_T0_EBP, |
| 291 | 367e86e8 | bellard | gen_op_movl_T0_ESI, |
| 292 | 367e86e8 | bellard | gen_op_movl_T0_EDI, |
| 293 | 367e86e8 | bellard | }, |
| 294 | 367e86e8 | bellard | {
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| 295 | 367e86e8 | bellard | gen_op_movl_T1_EAX, |
| 296 | 367e86e8 | bellard | gen_op_movl_T1_ECX, |
| 297 | 367e86e8 | bellard | gen_op_movl_T1_EDX, |
| 298 | 367e86e8 | bellard | gen_op_movl_T1_EBX, |
| 299 | 367e86e8 | bellard | gen_op_movl_T1_ESP, |
| 300 | 367e86e8 | bellard | gen_op_movl_T1_EBP, |
| 301 | 367e86e8 | bellard | gen_op_movl_T1_ESI, |
| 302 | 367e86e8 | bellard | gen_op_movl_T1_EDI, |
| 303 | 367e86e8 | bellard | }, |
| 304 | 367e86e8 | bellard | }, |
| 305 | 367e86e8 | bellard | [OT_LONG] = {
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| 306 | 367e86e8 | bellard | {
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| 307 | 367e86e8 | bellard | gen_op_movl_T0_EAX, |
| 308 | 367e86e8 | bellard | gen_op_movl_T0_ECX, |
| 309 | 367e86e8 | bellard | gen_op_movl_T0_EDX, |
| 310 | 367e86e8 | bellard | gen_op_movl_T0_EBX, |
| 311 | 367e86e8 | bellard | gen_op_movl_T0_ESP, |
| 312 | 367e86e8 | bellard | gen_op_movl_T0_EBP, |
| 313 | 367e86e8 | bellard | gen_op_movl_T0_ESI, |
| 314 | 367e86e8 | bellard | gen_op_movl_T0_EDI, |
| 315 | 367e86e8 | bellard | }, |
| 316 | 367e86e8 | bellard | {
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| 317 | 367e86e8 | bellard | gen_op_movl_T1_EAX, |
| 318 | 367e86e8 | bellard | gen_op_movl_T1_ECX, |
| 319 | 367e86e8 | bellard | gen_op_movl_T1_EDX, |
| 320 | 367e86e8 | bellard | gen_op_movl_T1_EBX, |
| 321 | 367e86e8 | bellard | gen_op_movl_T1_ESP, |
| 322 | 367e86e8 | bellard | gen_op_movl_T1_EBP, |
| 323 | 367e86e8 | bellard | gen_op_movl_T1_ESI, |
| 324 | 367e86e8 | bellard | gen_op_movl_T1_EDI, |
| 325 | 367e86e8 | bellard | }, |
| 326 | 367e86e8 | bellard | }, |
| 327 | 367e86e8 | bellard | }; |
| 328 | 367e86e8 | bellard | |
| 329 | 367e86e8 | bellard | static GenOpFunc *gen_op_movl_A0_reg[8] = { |
| 330 | 367e86e8 | bellard | gen_op_movl_A0_EAX, |
| 331 | 367e86e8 | bellard | gen_op_movl_A0_ECX, |
| 332 | 367e86e8 | bellard | gen_op_movl_A0_EDX, |
| 333 | 367e86e8 | bellard | gen_op_movl_A0_EBX, |
| 334 | 367e86e8 | bellard | gen_op_movl_A0_ESP, |
| 335 | 367e86e8 | bellard | gen_op_movl_A0_EBP, |
| 336 | 367e86e8 | bellard | gen_op_movl_A0_ESI, |
| 337 | 367e86e8 | bellard | gen_op_movl_A0_EDI, |
| 338 | 367e86e8 | bellard | }; |
| 339 | 367e86e8 | bellard | |
| 340 | 367e86e8 | bellard | static GenOpFunc *gen_op_addl_A0_reg_sN[4][8] = { |
| 341 | 367e86e8 | bellard | [0] = {
|
| 342 | 367e86e8 | bellard | gen_op_addl_A0_EAX, |
| 343 | 367e86e8 | bellard | gen_op_addl_A0_ECX, |
| 344 | 367e86e8 | bellard | gen_op_addl_A0_EDX, |
| 345 | 367e86e8 | bellard | gen_op_addl_A0_EBX, |
| 346 | 367e86e8 | bellard | gen_op_addl_A0_ESP, |
| 347 | 367e86e8 | bellard | gen_op_addl_A0_EBP, |
| 348 | 367e86e8 | bellard | gen_op_addl_A0_ESI, |
| 349 | 367e86e8 | bellard | gen_op_addl_A0_EDI, |
| 350 | 367e86e8 | bellard | }, |
| 351 | 367e86e8 | bellard | [1] = {
|
| 352 | 367e86e8 | bellard | gen_op_addl_A0_EAX_s1, |
| 353 | 367e86e8 | bellard | gen_op_addl_A0_ECX_s1, |
| 354 | 367e86e8 | bellard | gen_op_addl_A0_EDX_s1, |
| 355 | 367e86e8 | bellard | gen_op_addl_A0_EBX_s1, |
| 356 | 367e86e8 | bellard | gen_op_addl_A0_ESP_s1, |
| 357 | 367e86e8 | bellard | gen_op_addl_A0_EBP_s1, |
| 358 | 367e86e8 | bellard | gen_op_addl_A0_ESI_s1, |
| 359 | 367e86e8 | bellard | gen_op_addl_A0_EDI_s1, |
| 360 | 367e86e8 | bellard | }, |
| 361 | 367e86e8 | bellard | [2] = {
|
| 362 | 367e86e8 | bellard | gen_op_addl_A0_EAX_s2, |
| 363 | 367e86e8 | bellard | gen_op_addl_A0_ECX_s2, |
| 364 | 367e86e8 | bellard | gen_op_addl_A0_EDX_s2, |
| 365 | 367e86e8 | bellard | gen_op_addl_A0_EBX_s2, |
| 366 | 367e86e8 | bellard | gen_op_addl_A0_ESP_s2, |
| 367 | 367e86e8 | bellard | gen_op_addl_A0_EBP_s2, |
| 368 | 367e86e8 | bellard | gen_op_addl_A0_ESI_s2, |
| 369 | 367e86e8 | bellard | gen_op_addl_A0_EDI_s2, |
| 370 | 367e86e8 | bellard | }, |
| 371 | 367e86e8 | bellard | [3] = {
|
| 372 | 367e86e8 | bellard | gen_op_addl_A0_EAX_s3, |
| 373 | 367e86e8 | bellard | gen_op_addl_A0_ECX_s3, |
| 374 | 367e86e8 | bellard | gen_op_addl_A0_EDX_s3, |
| 375 | 367e86e8 | bellard | gen_op_addl_A0_EBX_s3, |
| 376 | 367e86e8 | bellard | gen_op_addl_A0_ESP_s3, |
| 377 | 367e86e8 | bellard | gen_op_addl_A0_EBP_s3, |
| 378 | 367e86e8 | bellard | gen_op_addl_A0_ESI_s3, |
| 379 | 367e86e8 | bellard | gen_op_addl_A0_EDI_s3, |
| 380 | 367e86e8 | bellard | }, |
| 381 | 367e86e8 | bellard | }; |
| 382 | 367e86e8 | bellard | |
| 383 | 5dd9488c | bellard | static GenOpFunc *gen_op_cmov_reg_T1_T0[2][8] = { |
| 384 | 5dd9488c | bellard | [0] = {
|
| 385 | 5dd9488c | bellard | gen_op_cmovw_EAX_T1_T0, |
| 386 | 5dd9488c | bellard | gen_op_cmovw_ECX_T1_T0, |
| 387 | 5dd9488c | bellard | gen_op_cmovw_EDX_T1_T0, |
| 388 | 5dd9488c | bellard | gen_op_cmovw_EBX_T1_T0, |
| 389 | 5dd9488c | bellard | gen_op_cmovw_ESP_T1_T0, |
| 390 | 5dd9488c | bellard | gen_op_cmovw_EBP_T1_T0, |
| 391 | 5dd9488c | bellard | gen_op_cmovw_ESI_T1_T0, |
| 392 | 5dd9488c | bellard | gen_op_cmovw_EDI_T1_T0, |
| 393 | 5dd9488c | bellard | }, |
| 394 | 5dd9488c | bellard | [1] = {
|
| 395 | 5dd9488c | bellard | gen_op_cmovl_EAX_T1_T0, |
| 396 | 5dd9488c | bellard | gen_op_cmovl_ECX_T1_T0, |
| 397 | 5dd9488c | bellard | gen_op_cmovl_EDX_T1_T0, |
| 398 | 5dd9488c | bellard | gen_op_cmovl_EBX_T1_T0, |
| 399 | 5dd9488c | bellard | gen_op_cmovl_ESP_T1_T0, |
| 400 | 5dd9488c | bellard | gen_op_cmovl_EBP_T1_T0, |
| 401 | 5dd9488c | bellard | gen_op_cmovl_ESI_T1_T0, |
| 402 | 5dd9488c | bellard | gen_op_cmovl_EDI_T1_T0, |
| 403 | 5dd9488c | bellard | }, |
| 404 | 5dd9488c | bellard | }; |
| 405 | 5dd9488c | bellard | |
| 406 | 367e86e8 | bellard | static GenOpFunc *gen_op_arith_T0_T1_cc[8] = { |
| 407 | 367e86e8 | bellard | gen_op_addl_T0_T1_cc, |
| 408 | 367e86e8 | bellard | gen_op_orl_T0_T1_cc, |
| 409 | 4b74fe1f | bellard | NULL,
|
| 410 | 4b74fe1f | bellard | NULL,
|
| 411 | 367e86e8 | bellard | gen_op_andl_T0_T1_cc, |
| 412 | 367e86e8 | bellard | gen_op_subl_T0_T1_cc, |
| 413 | 367e86e8 | bellard | gen_op_xorl_T0_T1_cc, |
| 414 | 367e86e8 | bellard | gen_op_cmpl_T0_T1_cc, |
| 415 | 367e86e8 | bellard | }; |
| 416 | 367e86e8 | bellard | |
| 417 | 4b74fe1f | bellard | static GenOpFunc *gen_op_arithc_T0_T1_cc[3][2] = { |
| 418 | 4b74fe1f | bellard | [OT_BYTE] = {
|
| 419 | 4b74fe1f | bellard | gen_op_adcb_T0_T1_cc, |
| 420 | 4b74fe1f | bellard | gen_op_sbbb_T0_T1_cc, |
| 421 | 4b74fe1f | bellard | }, |
| 422 | 4b74fe1f | bellard | [OT_WORD] = {
|
| 423 | 4b74fe1f | bellard | gen_op_adcw_T0_T1_cc, |
| 424 | 4b74fe1f | bellard | gen_op_sbbw_T0_T1_cc, |
| 425 | 4b74fe1f | bellard | }, |
| 426 | 4b74fe1f | bellard | [OT_LONG] = {
|
| 427 | 4b74fe1f | bellard | gen_op_adcl_T0_T1_cc, |
| 428 | 4b74fe1f | bellard | gen_op_sbbl_T0_T1_cc, |
| 429 | 4b74fe1f | bellard | }, |
| 430 | 4b74fe1f | bellard | }; |
| 431 | 4b74fe1f | bellard | |
| 432 | 367e86e8 | bellard | static const int cc_op_arithb[8] = { |
| 433 | 367e86e8 | bellard | CC_OP_ADDB, |
| 434 | 367e86e8 | bellard | CC_OP_LOGICB, |
| 435 | 367e86e8 | bellard | CC_OP_ADDB, |
| 436 | 367e86e8 | bellard | CC_OP_SUBB, |
| 437 | 367e86e8 | bellard | CC_OP_LOGICB, |
| 438 | 367e86e8 | bellard | CC_OP_SUBB, |
| 439 | 367e86e8 | bellard | CC_OP_LOGICB, |
| 440 | 367e86e8 | bellard | CC_OP_SUBB, |
| 441 | 367e86e8 | bellard | }; |
| 442 | 367e86e8 | bellard | |
| 443 | 1a9353d2 | bellard | static GenOpFunc *gen_op_cmpxchg_T0_T1_EAX_cc[3] = { |
| 444 | 1a9353d2 | bellard | gen_op_cmpxchgb_T0_T1_EAX_cc, |
| 445 | 1a9353d2 | bellard | gen_op_cmpxchgw_T0_T1_EAX_cc, |
| 446 | 1a9353d2 | bellard | gen_op_cmpxchgl_T0_T1_EAX_cc, |
| 447 | 1a9353d2 | bellard | }; |
| 448 | 1a9353d2 | bellard | |
| 449 | 367e86e8 | bellard | static GenOpFunc *gen_op_shift_T0_T1_cc[3][8] = { |
| 450 | 367e86e8 | bellard | [OT_BYTE] = {
|
| 451 | 367e86e8 | bellard | gen_op_rolb_T0_T1_cc, |
| 452 | 367e86e8 | bellard | gen_op_rorb_T0_T1_cc, |
| 453 | 367e86e8 | bellard | gen_op_rclb_T0_T1_cc, |
| 454 | 367e86e8 | bellard | gen_op_rcrb_T0_T1_cc, |
| 455 | 367e86e8 | bellard | gen_op_shlb_T0_T1_cc, |
| 456 | 367e86e8 | bellard | gen_op_shrb_T0_T1_cc, |
| 457 | 367e86e8 | bellard | gen_op_shlb_T0_T1_cc, |
| 458 | 367e86e8 | bellard | gen_op_sarb_T0_T1_cc, |
| 459 | 367e86e8 | bellard | }, |
| 460 | 367e86e8 | bellard | [OT_WORD] = {
|
| 461 | 367e86e8 | bellard | gen_op_rolw_T0_T1_cc, |
| 462 | 367e86e8 | bellard | gen_op_rorw_T0_T1_cc, |
| 463 | 367e86e8 | bellard | gen_op_rclw_T0_T1_cc, |
| 464 | 367e86e8 | bellard | gen_op_rcrw_T0_T1_cc, |
| 465 | 367e86e8 | bellard | gen_op_shlw_T0_T1_cc, |
| 466 | 367e86e8 | bellard | gen_op_shrw_T0_T1_cc, |
| 467 | 367e86e8 | bellard | gen_op_shlw_T0_T1_cc, |
| 468 | 367e86e8 | bellard | gen_op_sarw_T0_T1_cc, |
| 469 | 367e86e8 | bellard | }, |
| 470 | 367e86e8 | bellard | [OT_LONG] = {
|
| 471 | 367e86e8 | bellard | gen_op_roll_T0_T1_cc, |
| 472 | 367e86e8 | bellard | gen_op_rorl_T0_T1_cc, |
| 473 | 367e86e8 | bellard | gen_op_rcll_T0_T1_cc, |
| 474 | 367e86e8 | bellard | gen_op_rcrl_T0_T1_cc, |
| 475 | 367e86e8 | bellard | gen_op_shll_T0_T1_cc, |
| 476 | 367e86e8 | bellard | gen_op_shrl_T0_T1_cc, |
| 477 | 367e86e8 | bellard | gen_op_shll_T0_T1_cc, |
| 478 | 367e86e8 | bellard | gen_op_sarl_T0_T1_cc, |
| 479 | 367e86e8 | bellard | }, |
| 480 | 367e86e8 | bellard | }; |
| 481 | 367e86e8 | bellard | |
| 482 | d57c4e01 | bellard | static GenOpFunc1 *gen_op_shiftd_T0_T1_im_cc[2][2] = { |
| 483 | d57c4e01 | bellard | [0] = {
|
| 484 | d57c4e01 | bellard | gen_op_shldw_T0_T1_im_cc, |
| 485 | d57c4e01 | bellard | gen_op_shrdw_T0_T1_im_cc, |
| 486 | d57c4e01 | bellard | }, |
| 487 | d57c4e01 | bellard | [1] = {
|
| 488 | d57c4e01 | bellard | gen_op_shldl_T0_T1_im_cc, |
| 489 | d57c4e01 | bellard | gen_op_shrdl_T0_T1_im_cc, |
| 490 | d57c4e01 | bellard | }, |
| 491 | d57c4e01 | bellard | }; |
| 492 | d57c4e01 | bellard | |
| 493 | d57c4e01 | bellard | static GenOpFunc *gen_op_shiftd_T0_T1_ECX_cc[2][2] = { |
| 494 | d57c4e01 | bellard | [0] = {
|
| 495 | d57c4e01 | bellard | gen_op_shldw_T0_T1_ECX_cc, |
| 496 | d57c4e01 | bellard | gen_op_shrdw_T0_T1_ECX_cc, |
| 497 | d57c4e01 | bellard | }, |
| 498 | d57c4e01 | bellard | [1] = {
|
| 499 | d57c4e01 | bellard | gen_op_shldl_T0_T1_ECX_cc, |
| 500 | d57c4e01 | bellard | gen_op_shrdl_T0_T1_ECX_cc, |
| 501 | d57c4e01 | bellard | }, |
| 502 | d57c4e01 | bellard | }; |
| 503 | d57c4e01 | bellard | |
| 504 | 4b74fe1f | bellard | static GenOpFunc *gen_op_btx_T0_T1_cc[2][4] = { |
| 505 | 4b74fe1f | bellard | [0] = {
|
| 506 | 4b74fe1f | bellard | gen_op_btw_T0_T1_cc, |
| 507 | 4b74fe1f | bellard | gen_op_btsw_T0_T1_cc, |
| 508 | 4b74fe1f | bellard | gen_op_btrw_T0_T1_cc, |
| 509 | 4b74fe1f | bellard | gen_op_btcw_T0_T1_cc, |
| 510 | 4b74fe1f | bellard | }, |
| 511 | 4b74fe1f | bellard | [1] = {
|
| 512 | 4b74fe1f | bellard | gen_op_btl_T0_T1_cc, |
| 513 | 4b74fe1f | bellard | gen_op_btsl_T0_T1_cc, |
| 514 | 4b74fe1f | bellard | gen_op_btrl_T0_T1_cc, |
| 515 | 4b74fe1f | bellard | gen_op_btcl_T0_T1_cc, |
| 516 | 4b74fe1f | bellard | }, |
| 517 | 4b74fe1f | bellard | }; |
| 518 | 4b74fe1f | bellard | |
| 519 | 77f8dd5a | bellard | static GenOpFunc *gen_op_bsx_T0_cc[2][2] = { |
| 520 | 77f8dd5a | bellard | [0] = {
|
| 521 | 77f8dd5a | bellard | gen_op_bsfw_T0_cc, |
| 522 | 77f8dd5a | bellard | gen_op_bsrw_T0_cc, |
| 523 | 77f8dd5a | bellard | }, |
| 524 | 77f8dd5a | bellard | [1] = {
|
| 525 | 77f8dd5a | bellard | gen_op_bsfl_T0_cc, |
| 526 | 77f8dd5a | bellard | gen_op_bsrl_T0_cc, |
| 527 | 77f8dd5a | bellard | }, |
| 528 | 77f8dd5a | bellard | }; |
| 529 | 77f8dd5a | bellard | |
| 530 | 367e86e8 | bellard | static GenOpFunc *gen_op_lds_T0_A0[3] = { |
| 531 | 367e86e8 | bellard | gen_op_ldsb_T0_A0, |
| 532 | 367e86e8 | bellard | gen_op_ldsw_T0_A0, |
| 533 | 367e86e8 | bellard | }; |
| 534 | 367e86e8 | bellard | |
| 535 | 367e86e8 | bellard | static GenOpFunc *gen_op_ldu_T0_A0[3] = { |
| 536 | 367e86e8 | bellard | gen_op_ldub_T0_A0, |
| 537 | 367e86e8 | bellard | gen_op_lduw_T0_A0, |
| 538 | 367e86e8 | bellard | }; |
| 539 | 367e86e8 | bellard | |
| 540 | 367e86e8 | bellard | /* sign does not matter */
|
| 541 | 367e86e8 | bellard | static GenOpFunc *gen_op_ld_T0_A0[3] = { |
| 542 | 367e86e8 | bellard | gen_op_ldub_T0_A0, |
| 543 | 367e86e8 | bellard | gen_op_lduw_T0_A0, |
| 544 | 367e86e8 | bellard | gen_op_ldl_T0_A0, |
| 545 | 367e86e8 | bellard | }; |
| 546 | 367e86e8 | bellard | |
| 547 | 367e86e8 | bellard | static GenOpFunc *gen_op_ld_T1_A0[3] = { |
| 548 | 367e86e8 | bellard | gen_op_ldub_T1_A0, |
| 549 | 367e86e8 | bellard | gen_op_lduw_T1_A0, |
| 550 | 367e86e8 | bellard | gen_op_ldl_T1_A0, |
| 551 | 367e86e8 | bellard | }; |
| 552 | 367e86e8 | bellard | |
| 553 | 367e86e8 | bellard | static GenOpFunc *gen_op_st_T0_A0[3] = { |
| 554 | 367e86e8 | bellard | gen_op_stb_T0_A0, |
| 555 | 367e86e8 | bellard | gen_op_stw_T0_A0, |
| 556 | 367e86e8 | bellard | gen_op_stl_T0_A0, |
| 557 | 367e86e8 | bellard | }; |
| 558 | 367e86e8 | bellard | |
| 559 | 367e86e8 | bellard | static GenOpFunc *gen_op_movs[6] = { |
| 560 | 367e86e8 | bellard | gen_op_movsb, |
| 561 | 367e86e8 | bellard | gen_op_movsw, |
| 562 | 367e86e8 | bellard | gen_op_movsl, |
| 563 | 367e86e8 | bellard | gen_op_rep_movsb, |
| 564 | 367e86e8 | bellard | gen_op_rep_movsw, |
| 565 | 367e86e8 | bellard | gen_op_rep_movsl, |
| 566 | 367e86e8 | bellard | }; |
| 567 | 367e86e8 | bellard | |
| 568 | 367e86e8 | bellard | static GenOpFunc *gen_op_stos[6] = { |
| 569 | 367e86e8 | bellard | gen_op_stosb, |
| 570 | 367e86e8 | bellard | gen_op_stosw, |
| 571 | 367e86e8 | bellard | gen_op_stosl, |
| 572 | 367e86e8 | bellard | gen_op_rep_stosb, |
| 573 | 367e86e8 | bellard | gen_op_rep_stosw, |
| 574 | 367e86e8 | bellard | gen_op_rep_stosl, |
| 575 | 367e86e8 | bellard | }; |
| 576 | 367e86e8 | bellard | |
| 577 | 367e86e8 | bellard | static GenOpFunc *gen_op_lods[6] = { |
| 578 | 367e86e8 | bellard | gen_op_lodsb, |
| 579 | 367e86e8 | bellard | gen_op_lodsw, |
| 580 | 367e86e8 | bellard | gen_op_lodsl, |
| 581 | 367e86e8 | bellard | gen_op_rep_lodsb, |
| 582 | 367e86e8 | bellard | gen_op_rep_lodsw, |
| 583 | 367e86e8 | bellard | gen_op_rep_lodsl, |
| 584 | 367e86e8 | bellard | }; |
| 585 | 367e86e8 | bellard | |
| 586 | 367e86e8 | bellard | static GenOpFunc *gen_op_scas[9] = { |
| 587 | 367e86e8 | bellard | gen_op_scasb, |
| 588 | 367e86e8 | bellard | gen_op_scasw, |
| 589 | 367e86e8 | bellard | gen_op_scasl, |
| 590 | 367e86e8 | bellard | gen_op_repz_scasb, |
| 591 | 367e86e8 | bellard | gen_op_repz_scasw, |
| 592 | 367e86e8 | bellard | gen_op_repz_scasl, |
| 593 | 367e86e8 | bellard | gen_op_repnz_scasb, |
| 594 | 367e86e8 | bellard | gen_op_repnz_scasw, |
| 595 | 367e86e8 | bellard | gen_op_repnz_scasl, |
| 596 | 367e86e8 | bellard | }; |
| 597 | 367e86e8 | bellard | |
| 598 | 367e86e8 | bellard | static GenOpFunc *gen_op_cmps[9] = { |
| 599 | 367e86e8 | bellard | gen_op_cmpsb, |
| 600 | 367e86e8 | bellard | gen_op_cmpsw, |
| 601 | 367e86e8 | bellard | gen_op_cmpsl, |
| 602 | 367e86e8 | bellard | gen_op_repz_cmpsb, |
| 603 | 367e86e8 | bellard | gen_op_repz_cmpsw, |
| 604 | 367e86e8 | bellard | gen_op_repz_cmpsl, |
| 605 | 367e86e8 | bellard | gen_op_repnz_cmpsb, |
| 606 | 367e86e8 | bellard | gen_op_repnz_cmpsw, |
| 607 | 367e86e8 | bellard | gen_op_repnz_cmpsl, |
| 608 | 367e86e8 | bellard | }; |
| 609 | 367e86e8 | bellard | |
| 610 | 367e86e8 | bellard | static GenOpFunc *gen_op_ins[6] = { |
| 611 | 367e86e8 | bellard | gen_op_insb, |
| 612 | 367e86e8 | bellard | gen_op_insw, |
| 613 | 367e86e8 | bellard | gen_op_insl, |
| 614 | 367e86e8 | bellard | gen_op_rep_insb, |
| 615 | 367e86e8 | bellard | gen_op_rep_insw, |
| 616 | 367e86e8 | bellard | gen_op_rep_insl, |
| 617 | 367e86e8 | bellard | }; |
| 618 | 367e86e8 | bellard | |
| 619 | 367e86e8 | bellard | |
| 620 | 367e86e8 | bellard | static GenOpFunc *gen_op_outs[6] = { |
| 621 | 367e86e8 | bellard | gen_op_outsb, |
| 622 | 367e86e8 | bellard | gen_op_outsw, |
| 623 | 367e86e8 | bellard | gen_op_outsl, |
| 624 | 367e86e8 | bellard | gen_op_rep_outsb, |
| 625 | 367e86e8 | bellard | gen_op_rep_outsw, |
| 626 | 367e86e8 | bellard | gen_op_rep_outsl, |
| 627 | 367e86e8 | bellard | }; |
| 628 | 367e86e8 | bellard | |
| 629 | ba1c6e37 | bellard | static GenOpFunc *gen_op_in[3] = { |
| 630 | ba1c6e37 | bellard | gen_op_inb_T0_T1, |
| 631 | ba1c6e37 | bellard | gen_op_inw_T0_T1, |
| 632 | ba1c6e37 | bellard | gen_op_inl_T0_T1, |
| 633 | ba1c6e37 | bellard | }; |
| 634 | ba1c6e37 | bellard | |
| 635 | ba1c6e37 | bellard | static GenOpFunc *gen_op_out[3] = { |
| 636 | ba1c6e37 | bellard | gen_op_outb_T0_T1, |
| 637 | ba1c6e37 | bellard | gen_op_outw_T0_T1, |
| 638 | ba1c6e37 | bellard | gen_op_outl_T0_T1, |
| 639 | ba1c6e37 | bellard | }; |
| 640 | ba1c6e37 | bellard | |
| 641 | 367e86e8 | bellard | enum {
|
| 642 | 367e86e8 | bellard | JCC_O, |
| 643 | 367e86e8 | bellard | JCC_B, |
| 644 | 367e86e8 | bellard | JCC_Z, |
| 645 | 367e86e8 | bellard | JCC_BE, |
| 646 | 367e86e8 | bellard | JCC_S, |
| 647 | 367e86e8 | bellard | JCC_P, |
| 648 | 367e86e8 | bellard | JCC_L, |
| 649 | 367e86e8 | bellard | JCC_LE, |
| 650 | 367e86e8 | bellard | }; |
| 651 | 367e86e8 | bellard | |
| 652 | 367e86e8 | bellard | static GenOpFunc2 *gen_jcc_slow[8] = { |
| 653 | 367e86e8 | bellard | gen_op_jo_cc, |
| 654 | 367e86e8 | bellard | gen_op_jb_cc, |
| 655 | 367e86e8 | bellard | gen_op_jz_cc, |
| 656 | 367e86e8 | bellard | gen_op_jbe_cc, |
| 657 | 367e86e8 | bellard | gen_op_js_cc, |
| 658 | 367e86e8 | bellard | gen_op_jp_cc, |
| 659 | 367e86e8 | bellard | gen_op_jl_cc, |
| 660 | 367e86e8 | bellard | gen_op_jle_cc, |
| 661 | 367e86e8 | bellard | }; |
| 662 | 367e86e8 | bellard | |
| 663 | 367e86e8 | bellard | static GenOpFunc2 *gen_jcc_sub[3][8] = { |
| 664 | 367e86e8 | bellard | [OT_BYTE] = {
|
| 665 | 367e86e8 | bellard | NULL,
|
| 666 | 367e86e8 | bellard | gen_op_jb_subb, |
| 667 | 367e86e8 | bellard | gen_op_jz_subb, |
| 668 | 367e86e8 | bellard | gen_op_jbe_subb, |
| 669 | 367e86e8 | bellard | gen_op_js_subb, |
| 670 | 367e86e8 | bellard | NULL,
|
| 671 | 367e86e8 | bellard | gen_op_jl_subb, |
| 672 | 367e86e8 | bellard | gen_op_jle_subb, |
| 673 | 367e86e8 | bellard | }, |
| 674 | 367e86e8 | bellard | [OT_WORD] = {
|
| 675 | 367e86e8 | bellard | NULL,
|
| 676 | 367e86e8 | bellard | gen_op_jb_subw, |
| 677 | 367e86e8 | bellard | gen_op_jz_subw, |
| 678 | 367e86e8 | bellard | gen_op_jbe_subw, |
| 679 | 367e86e8 | bellard | gen_op_js_subw, |
| 680 | 367e86e8 | bellard | NULL,
|
| 681 | 367e86e8 | bellard | gen_op_jl_subw, |
| 682 | 367e86e8 | bellard | gen_op_jle_subw, |
| 683 | 367e86e8 | bellard | }, |
| 684 | 367e86e8 | bellard | [OT_LONG] = {
|
| 685 | 367e86e8 | bellard | NULL,
|
| 686 | 367e86e8 | bellard | gen_op_jb_subl, |
| 687 | 367e86e8 | bellard | gen_op_jz_subl, |
| 688 | 367e86e8 | bellard | gen_op_jbe_subl, |
| 689 | 367e86e8 | bellard | gen_op_js_subl, |
| 690 | 367e86e8 | bellard | NULL,
|
| 691 | 367e86e8 | bellard | gen_op_jl_subl, |
| 692 | 367e86e8 | bellard | gen_op_jle_subl, |
| 693 | 367e86e8 | bellard | }, |
| 694 | 367e86e8 | bellard | }; |
| 695 | 1a9353d2 | bellard | static GenOpFunc2 *gen_op_loop[2][4] = { |
| 696 | 1a9353d2 | bellard | [0] = {
|
| 697 | 1a9353d2 | bellard | gen_op_loopnzw, |
| 698 | 1a9353d2 | bellard | gen_op_loopzw, |
| 699 | 1a9353d2 | bellard | gen_op_loopw, |
| 700 | 1a9353d2 | bellard | gen_op_jecxzw, |
| 701 | 1a9353d2 | bellard | }, |
| 702 | 1a9353d2 | bellard | [1] = {
|
| 703 | 1a9353d2 | bellard | gen_op_loopnzl, |
| 704 | 1a9353d2 | bellard | gen_op_loopzl, |
| 705 | 1a9353d2 | bellard | gen_op_loopl, |
| 706 | 1a9353d2 | bellard | gen_op_jecxzl, |
| 707 | 1a9353d2 | bellard | }, |
| 708 | 1a9353d2 | bellard | }; |
| 709 | 367e86e8 | bellard | |
| 710 | 367e86e8 | bellard | static GenOpFunc *gen_setcc_slow[8] = { |
| 711 | 367e86e8 | bellard | gen_op_seto_T0_cc, |
| 712 | 367e86e8 | bellard | gen_op_setb_T0_cc, |
| 713 | 367e86e8 | bellard | gen_op_setz_T0_cc, |
| 714 | 367e86e8 | bellard | gen_op_setbe_T0_cc, |
| 715 | 367e86e8 | bellard | gen_op_sets_T0_cc, |
| 716 | 367e86e8 | bellard | gen_op_setp_T0_cc, |
| 717 | 367e86e8 | bellard | gen_op_setl_T0_cc, |
| 718 | 367e86e8 | bellard | gen_op_setle_T0_cc, |
| 719 | 367e86e8 | bellard | }; |
| 720 | 367e86e8 | bellard | |
| 721 | 367e86e8 | bellard | static GenOpFunc *gen_setcc_sub[3][8] = { |
| 722 | 367e86e8 | bellard | [OT_BYTE] = {
|
| 723 | 367e86e8 | bellard | NULL,
|
| 724 | 367e86e8 | bellard | gen_op_setb_T0_subb, |
| 725 | 367e86e8 | bellard | gen_op_setz_T0_subb, |
| 726 | 367e86e8 | bellard | gen_op_setbe_T0_subb, |
| 727 | 367e86e8 | bellard | gen_op_sets_T0_subb, |
| 728 | 367e86e8 | bellard | NULL,
|
| 729 | 367e86e8 | bellard | gen_op_setl_T0_subb, |
| 730 | 367e86e8 | bellard | gen_op_setle_T0_subb, |
| 731 | 367e86e8 | bellard | }, |
| 732 | 367e86e8 | bellard | [OT_WORD] = {
|
| 733 | 367e86e8 | bellard | NULL,
|
| 734 | 367e86e8 | bellard | gen_op_setb_T0_subw, |
| 735 | 367e86e8 | bellard | gen_op_setz_T0_subw, |
| 736 | 367e86e8 | bellard | gen_op_setbe_T0_subw, |
| 737 | 367e86e8 | bellard | gen_op_sets_T0_subw, |
| 738 | 367e86e8 | bellard | NULL,
|
| 739 | 367e86e8 | bellard | gen_op_setl_T0_subw, |
| 740 | 367e86e8 | bellard | gen_op_setle_T0_subw, |
| 741 | 367e86e8 | bellard | }, |
| 742 | 367e86e8 | bellard | [OT_LONG] = {
|
| 743 | 367e86e8 | bellard | NULL,
|
| 744 | 367e86e8 | bellard | gen_op_setb_T0_subl, |
| 745 | 367e86e8 | bellard | gen_op_setz_T0_subl, |
| 746 | 367e86e8 | bellard | gen_op_setbe_T0_subl, |
| 747 | 367e86e8 | bellard | gen_op_sets_T0_subl, |
| 748 | 367e86e8 | bellard | NULL,
|
| 749 | 367e86e8 | bellard | gen_op_setl_T0_subl, |
| 750 | 367e86e8 | bellard | gen_op_setle_T0_subl, |
| 751 | 367e86e8 | bellard | }, |
| 752 | 367e86e8 | bellard | }; |
| 753 | 367e86e8 | bellard | |
| 754 | 927f621e | bellard | static GenOpFunc *gen_op_fp_arith_ST0_FT0[8] = { |
| 755 | 927f621e | bellard | gen_op_fadd_ST0_FT0, |
| 756 | 927f621e | bellard | gen_op_fmul_ST0_FT0, |
| 757 | 927f621e | bellard | gen_op_fcom_ST0_FT0, |
| 758 | 927f621e | bellard | gen_op_fcom_ST0_FT0, |
| 759 | 927f621e | bellard | gen_op_fsub_ST0_FT0, |
| 760 | 927f621e | bellard | gen_op_fsubr_ST0_FT0, |
| 761 | 927f621e | bellard | gen_op_fdiv_ST0_FT0, |
| 762 | 927f621e | bellard | gen_op_fdivr_ST0_FT0, |
| 763 | 927f621e | bellard | }; |
| 764 | 927f621e | bellard | |
| 765 | 77f8dd5a | bellard | /* NOTE the exception in "r" op ordering */
|
| 766 | 927f621e | bellard | static GenOpFunc1 *gen_op_fp_arith_STN_ST0[8] = { |
| 767 | 927f621e | bellard | gen_op_fadd_STN_ST0, |
| 768 | 927f621e | bellard | gen_op_fmul_STN_ST0, |
| 769 | 927f621e | bellard | NULL,
|
| 770 | 927f621e | bellard | NULL,
|
| 771 | 927f621e | bellard | gen_op_fsubr_STN_ST0, |
| 772 | 77f8dd5a | bellard | gen_op_fsub_STN_ST0, |
| 773 | 927f621e | bellard | gen_op_fdivr_STN_ST0, |
| 774 | 77f8dd5a | bellard | gen_op_fdiv_STN_ST0, |
| 775 | 927f621e | bellard | }; |
| 776 | 927f621e | bellard | |
| 777 | 367e86e8 | bellard | static void gen_op(DisasContext *s1, int op, int ot, int d, int s) |
| 778 | 367e86e8 | bellard | {
|
| 779 | 367e86e8 | bellard | if (d != OR_TMP0)
|
| 780 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][d]();
|
| 781 | 367e86e8 | bellard | if (s != OR_TMP1)
|
| 782 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][1][s]();
|
| 783 | 4b74fe1f | bellard | if (op == OP_ADCL || op == OP_SBBL) {
|
| 784 | 4b74fe1f | bellard | if (s1->cc_op != CC_OP_DYNAMIC)
|
| 785 | 4b74fe1f | bellard | gen_op_set_cc_op(s1->cc_op); |
| 786 | 4b74fe1f | bellard | gen_op_arithc_T0_T1_cc[ot][op - OP_ADCL](); |
| 787 | 4b74fe1f | bellard | s1->cc_op = CC_OP_DYNAMIC; |
| 788 | 4b74fe1f | bellard | } else {
|
| 789 | 4b74fe1f | bellard | gen_op_arith_T0_T1_cc[op](); |
| 790 | 4b74fe1f | bellard | s1->cc_op = cc_op_arithb[op] + ot; |
| 791 | 4b74fe1f | bellard | } |
| 792 | 367e86e8 | bellard | if (d != OR_TMP0 && op != OP_CMPL)
|
| 793 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][d](); |
| 794 | 367e86e8 | bellard | } |
| 795 | 367e86e8 | bellard | |
| 796 | 367e86e8 | bellard | static void gen_opi(DisasContext *s1, int op, int ot, int d, int c) |
| 797 | 367e86e8 | bellard | {
|
| 798 | ba1c6e37 | bellard | gen_op_movl_T1_im(c); |
| 799 | 4b74fe1f | bellard | gen_op(s1, op, ot, d, OR_TMP1); |
| 800 | 367e86e8 | bellard | } |
| 801 | 367e86e8 | bellard | |
| 802 | 367e86e8 | bellard | static void gen_inc(DisasContext *s1, int ot, int d, int c) |
| 803 | 367e86e8 | bellard | {
|
| 804 | 367e86e8 | bellard | if (d != OR_TMP0)
|
| 805 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][d]();
|
| 806 | 367e86e8 | bellard | if (s1->cc_op != CC_OP_DYNAMIC)
|
| 807 | 367e86e8 | bellard | gen_op_set_cc_op(s1->cc_op); |
| 808 | 4b74fe1f | bellard | if (c > 0) { |
| 809 | 367e86e8 | bellard | gen_op_incl_T0_cc(); |
| 810 | 4b74fe1f | bellard | s1->cc_op = CC_OP_INCB + ot; |
| 811 | 4b74fe1f | bellard | } else {
|
| 812 | 367e86e8 | bellard | gen_op_decl_T0_cc(); |
| 813 | 4b74fe1f | bellard | s1->cc_op = CC_OP_DECB + ot; |
| 814 | 4b74fe1f | bellard | } |
| 815 | 367e86e8 | bellard | if (d != OR_TMP0)
|
| 816 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][d](); |
| 817 | 367e86e8 | bellard | } |
| 818 | 367e86e8 | bellard | |
| 819 | 367e86e8 | bellard | static void gen_shift(DisasContext *s1, int op, int ot, int d, int s) |
| 820 | 367e86e8 | bellard | {
|
| 821 | 367e86e8 | bellard | if (d != OR_TMP0)
|
| 822 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][d]();
|
| 823 | 367e86e8 | bellard | if (s != OR_TMP1)
|
| 824 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][1][s]();
|
| 825 | 4b74fe1f | bellard | /* for zero counts, flags are not updated, so must do it dynamically */
|
| 826 | 4b74fe1f | bellard | if (s1->cc_op != CC_OP_DYNAMIC)
|
| 827 | 4b74fe1f | bellard | gen_op_set_cc_op(s1->cc_op); |
| 828 | 4b74fe1f | bellard | |
| 829 | 4b74fe1f | bellard | gen_op_shift_T0_T1_cc[ot][op](); |
| 830 | 4b74fe1f | bellard | |
| 831 | 367e86e8 | bellard | if (d != OR_TMP0)
|
| 832 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][d](); |
| 833 | 367e86e8 | bellard | s1->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 834 | 367e86e8 | bellard | } |
| 835 | 367e86e8 | bellard | |
| 836 | 367e86e8 | bellard | static void gen_shifti(DisasContext *s1, int op, int ot, int d, int c) |
| 837 | 367e86e8 | bellard | {
|
| 838 | 367e86e8 | bellard | /* currently not optimized */
|
| 839 | ba1c6e37 | bellard | gen_op_movl_T1_im(c); |
| 840 | 367e86e8 | bellard | gen_shift(s1, op, ot, d, OR_TMP1); |
| 841 | 367e86e8 | bellard | } |
| 842 | 367e86e8 | bellard | |
| 843 | 367e86e8 | bellard | static void gen_lea_modrm(DisasContext *s, int modrm, int *reg_ptr, int *offset_ptr) |
| 844 | 367e86e8 | bellard | {
|
| 845 | 367e86e8 | bellard | int havesib;
|
| 846 | 367e86e8 | bellard | int base, disp;
|
| 847 | 6dbad63e | bellard | int index;
|
| 848 | 6dbad63e | bellard | int scale;
|
| 849 | 6dbad63e | bellard | int opreg;
|
| 850 | 6dbad63e | bellard | int mod, rm, code, override, must_add_seg;
|
| 851 | 6dbad63e | bellard | |
| 852 | 6dbad63e | bellard | /* XXX: add a generation time variable to tell if base == 0 in DS/ES/SS */
|
| 853 | 6dbad63e | bellard | override = -1;
|
| 854 | 6dbad63e | bellard | must_add_seg = s->addseg; |
| 855 | 6dbad63e | bellard | if (s->prefix & (PREFIX_CS | PREFIX_SS | PREFIX_DS |
|
| 856 | 6dbad63e | bellard | PREFIX_ES | PREFIX_FS | PREFIX_GS)) {
|
| 857 | 6dbad63e | bellard | if (s->prefix & PREFIX_ES)
|
| 858 | 6dbad63e | bellard | override = R_ES; |
| 859 | 6dbad63e | bellard | else if (s->prefix & PREFIX_CS) |
| 860 | 6dbad63e | bellard | override = R_CS; |
| 861 | 6dbad63e | bellard | else if (s->prefix & PREFIX_SS) |
| 862 | 6dbad63e | bellard | override = R_SS; |
| 863 | 6dbad63e | bellard | else if (s->prefix & PREFIX_DS) |
| 864 | 6dbad63e | bellard | override = R_DS; |
| 865 | 6dbad63e | bellard | else if (s->prefix & PREFIX_FS) |
| 866 | 6dbad63e | bellard | override = R_FS; |
| 867 | 6dbad63e | bellard | else
|
| 868 | 6dbad63e | bellard | override = R_GS; |
| 869 | 6dbad63e | bellard | must_add_seg = 1;
|
| 870 | 6dbad63e | bellard | } |
| 871 | 367e86e8 | bellard | |
| 872 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 873 | 367e86e8 | bellard | rm = modrm & 7;
|
| 874 | 367e86e8 | bellard | |
| 875 | 367e86e8 | bellard | if (s->aflag) {
|
| 876 | 367e86e8 | bellard | |
| 877 | 367e86e8 | bellard | havesib = 0;
|
| 878 | 367e86e8 | bellard | base = rm; |
| 879 | 6dbad63e | bellard | index = 0;
|
| 880 | 6dbad63e | bellard | scale = 0;
|
| 881 | 367e86e8 | bellard | |
| 882 | 367e86e8 | bellard | if (base == 4) { |
| 883 | 367e86e8 | bellard | havesib = 1;
|
| 884 | 367e86e8 | bellard | code = ldub(s->pc++); |
| 885 | 367e86e8 | bellard | scale = (code >> 6) & 3; |
| 886 | 367e86e8 | bellard | index = (code >> 3) & 7; |
| 887 | 367e86e8 | bellard | base = code & 7;
|
| 888 | 367e86e8 | bellard | } |
| 889 | 367e86e8 | bellard | |
| 890 | 367e86e8 | bellard | switch (mod) {
|
| 891 | 367e86e8 | bellard | case 0: |
| 892 | 367e86e8 | bellard | if (base == 5) { |
| 893 | 6dbad63e | bellard | base = -1;
|
| 894 | 367e86e8 | bellard | disp = ldl(s->pc); |
| 895 | 367e86e8 | bellard | s->pc += 4;
|
| 896 | 367e86e8 | bellard | } else {
|
| 897 | 367e86e8 | bellard | disp = 0;
|
| 898 | 367e86e8 | bellard | } |
| 899 | 367e86e8 | bellard | break;
|
| 900 | 367e86e8 | bellard | case 1: |
| 901 | 367e86e8 | bellard | disp = (int8_t)ldub(s->pc++); |
| 902 | 367e86e8 | bellard | break;
|
| 903 | 367e86e8 | bellard | default:
|
| 904 | 367e86e8 | bellard | case 2: |
| 905 | 367e86e8 | bellard | disp = ldl(s->pc); |
| 906 | 367e86e8 | bellard | s->pc += 4;
|
| 907 | 367e86e8 | bellard | break;
|
| 908 | 367e86e8 | bellard | } |
| 909 | 6dbad63e | bellard | |
| 910 | 6dbad63e | bellard | if (base >= 0) { |
| 911 | 6dbad63e | bellard | gen_op_movl_A0_reg[base](); |
| 912 | 6dbad63e | bellard | if (disp != 0) |
| 913 | 6dbad63e | bellard | gen_op_addl_A0_im(disp); |
| 914 | 367e86e8 | bellard | } else {
|
| 915 | 6dbad63e | bellard | gen_op_movl_A0_im(disp); |
| 916 | 6dbad63e | bellard | } |
| 917 | 6dbad63e | bellard | if (havesib && (index != 4 || scale != 0)) { |
| 918 | 6dbad63e | bellard | gen_op_addl_A0_reg_sN[scale][index](); |
| 919 | 6dbad63e | bellard | } |
| 920 | 6dbad63e | bellard | if (must_add_seg) {
|
| 921 | 6dbad63e | bellard | if (override < 0) { |
| 922 | 6dbad63e | bellard | if (base == R_EBP || base == R_ESP)
|
| 923 | 6dbad63e | bellard | override = R_SS; |
| 924 | 6dbad63e | bellard | else
|
| 925 | 6dbad63e | bellard | override = R_DS; |
| 926 | 367e86e8 | bellard | } |
| 927 | 6dbad63e | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[override].base)); |
| 928 | 367e86e8 | bellard | } |
| 929 | 367e86e8 | bellard | } else {
|
| 930 | 4b74fe1f | bellard | switch (mod) {
|
| 931 | 4b74fe1f | bellard | case 0: |
| 932 | 4b74fe1f | bellard | if (rm == 6) { |
| 933 | 4b74fe1f | bellard | disp = lduw(s->pc); |
| 934 | 4b74fe1f | bellard | s->pc += 2;
|
| 935 | 4b74fe1f | bellard | gen_op_movl_A0_im(disp); |
| 936 | 6dbad63e | bellard | rm = 0; /* avoid SS override */ |
| 937 | 4b74fe1f | bellard | goto no_rm;
|
| 938 | 4b74fe1f | bellard | } else {
|
| 939 | 4b74fe1f | bellard | disp = 0;
|
| 940 | 4b74fe1f | bellard | } |
| 941 | 4b74fe1f | bellard | break;
|
| 942 | 4b74fe1f | bellard | case 1: |
| 943 | 4b74fe1f | bellard | disp = (int8_t)ldub(s->pc++); |
| 944 | 4b74fe1f | bellard | break;
|
| 945 | 4b74fe1f | bellard | default:
|
| 946 | 4b74fe1f | bellard | case 2: |
| 947 | 4b74fe1f | bellard | disp = lduw(s->pc); |
| 948 | 4b74fe1f | bellard | s->pc += 2;
|
| 949 | 4b74fe1f | bellard | break;
|
| 950 | 4b74fe1f | bellard | } |
| 951 | 4b74fe1f | bellard | switch(rm) {
|
| 952 | 4b74fe1f | bellard | case 0: |
| 953 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBX](); |
| 954 | 4b74fe1f | bellard | gen_op_addl_A0_reg_sN[0][R_ESI]();
|
| 955 | 4b74fe1f | bellard | break;
|
| 956 | 4b74fe1f | bellard | case 1: |
| 957 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBX](); |
| 958 | 4b74fe1f | bellard | gen_op_addl_A0_reg_sN[0][R_EDI]();
|
| 959 | 4b74fe1f | bellard | break;
|
| 960 | 4b74fe1f | bellard | case 2: |
| 961 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBP](); |
| 962 | 4b74fe1f | bellard | gen_op_addl_A0_reg_sN[0][R_ESI]();
|
| 963 | 4b74fe1f | bellard | break;
|
| 964 | 4b74fe1f | bellard | case 3: |
| 965 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBP](); |
| 966 | 4b74fe1f | bellard | gen_op_addl_A0_reg_sN[0][R_EDI]();
|
| 967 | 4b74fe1f | bellard | break;
|
| 968 | 4b74fe1f | bellard | case 4: |
| 969 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_ESI](); |
| 970 | 4b74fe1f | bellard | break;
|
| 971 | 4b74fe1f | bellard | case 5: |
| 972 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EDI](); |
| 973 | 4b74fe1f | bellard | break;
|
| 974 | 4b74fe1f | bellard | case 6: |
| 975 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBP](); |
| 976 | 4b74fe1f | bellard | break;
|
| 977 | 4b74fe1f | bellard | default:
|
| 978 | 4b74fe1f | bellard | case 7: |
| 979 | 4b74fe1f | bellard | gen_op_movl_A0_reg[R_EBX](); |
| 980 | 4b74fe1f | bellard | break;
|
| 981 | 4b74fe1f | bellard | } |
| 982 | 4b74fe1f | bellard | if (disp != 0) |
| 983 | 4b74fe1f | bellard | gen_op_addl_A0_im(disp); |
| 984 | 4b74fe1f | bellard | gen_op_andl_A0_ffff(); |
| 985 | 6dbad63e | bellard | no_rm:
|
| 986 | 6dbad63e | bellard | if (must_add_seg) {
|
| 987 | 6dbad63e | bellard | if (override < 0) { |
| 988 | 6dbad63e | bellard | if (rm == 2 || rm == 3 || rm == 6) |
| 989 | 6dbad63e | bellard | override = R_SS; |
| 990 | 6dbad63e | bellard | else
|
| 991 | 6dbad63e | bellard | override = R_DS; |
| 992 | 6dbad63e | bellard | } |
| 993 | 6dbad63e | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[override].base)); |
| 994 | 6dbad63e | bellard | } |
| 995 | 367e86e8 | bellard | } |
| 996 | 6dbad63e | bellard | |
| 997 | 4b74fe1f | bellard | opreg = OR_A0; |
| 998 | 4b74fe1f | bellard | disp = 0;
|
| 999 | 367e86e8 | bellard | *reg_ptr = opreg; |
| 1000 | 367e86e8 | bellard | *offset_ptr = disp; |
| 1001 | 367e86e8 | bellard | } |
| 1002 | 367e86e8 | bellard | |
| 1003 | 367e86e8 | bellard | /* generate modrm memory load or store of 'reg'. TMP0 is used if reg !=
|
| 1004 | 367e86e8 | bellard | OR_TMP0 */
|
| 1005 | 367e86e8 | bellard | static void gen_ldst_modrm(DisasContext *s, int modrm, int ot, int reg, int is_store) |
| 1006 | 367e86e8 | bellard | {
|
| 1007 | 367e86e8 | bellard | int mod, rm, opreg, disp;
|
| 1008 | 367e86e8 | bellard | |
| 1009 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1010 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1011 | 367e86e8 | bellard | if (mod == 3) { |
| 1012 | 367e86e8 | bellard | if (is_store) {
|
| 1013 | 367e86e8 | bellard | if (reg != OR_TMP0)
|
| 1014 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 1015 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1016 | 367e86e8 | bellard | } else {
|
| 1017 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 1018 | 367e86e8 | bellard | if (reg != OR_TMP0)
|
| 1019 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 1020 | 367e86e8 | bellard | } |
| 1021 | 367e86e8 | bellard | } else {
|
| 1022 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, &opreg, &disp); |
| 1023 | 367e86e8 | bellard | if (is_store) {
|
| 1024 | 367e86e8 | bellard | if (reg != OR_TMP0)
|
| 1025 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 1026 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1027 | 367e86e8 | bellard | } else {
|
| 1028 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 1029 | 367e86e8 | bellard | if (reg != OR_TMP0)
|
| 1030 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 1031 | 367e86e8 | bellard | } |
| 1032 | 367e86e8 | bellard | } |
| 1033 | 367e86e8 | bellard | } |
| 1034 | 367e86e8 | bellard | |
| 1035 | 367e86e8 | bellard | static inline uint32_t insn_get(DisasContext *s, int ot) |
| 1036 | 367e86e8 | bellard | {
|
| 1037 | 367e86e8 | bellard | uint32_t ret; |
| 1038 | 367e86e8 | bellard | |
| 1039 | 367e86e8 | bellard | switch(ot) {
|
| 1040 | 367e86e8 | bellard | case OT_BYTE:
|
| 1041 | 367e86e8 | bellard | ret = ldub(s->pc); |
| 1042 | 367e86e8 | bellard | s->pc++; |
| 1043 | 367e86e8 | bellard | break;
|
| 1044 | 367e86e8 | bellard | case OT_WORD:
|
| 1045 | 367e86e8 | bellard | ret = lduw(s->pc); |
| 1046 | 367e86e8 | bellard | s->pc += 2;
|
| 1047 | 367e86e8 | bellard | break;
|
| 1048 | 367e86e8 | bellard | default:
|
| 1049 | 367e86e8 | bellard | case OT_LONG:
|
| 1050 | 367e86e8 | bellard | ret = ldl(s->pc); |
| 1051 | 367e86e8 | bellard | s->pc += 4;
|
| 1052 | 367e86e8 | bellard | break;
|
| 1053 | 367e86e8 | bellard | } |
| 1054 | 367e86e8 | bellard | return ret;
|
| 1055 | 367e86e8 | bellard | } |
| 1056 | 367e86e8 | bellard | |
| 1057 | dab2ed99 | bellard | static inline void gen_jcc(DisasContext *s, int b, int val, int next_eip) |
| 1058 | 367e86e8 | bellard | {
|
| 1059 | 367e86e8 | bellard | int inv, jcc_op;
|
| 1060 | 367e86e8 | bellard | GenOpFunc2 *func; |
| 1061 | 367e86e8 | bellard | |
| 1062 | 367e86e8 | bellard | inv = b & 1;
|
| 1063 | 367e86e8 | bellard | jcc_op = (b >> 1) & 7; |
| 1064 | 367e86e8 | bellard | switch(s->cc_op) {
|
| 1065 | 367e86e8 | bellard | /* we optimize the cmp/jcc case */
|
| 1066 | 367e86e8 | bellard | case CC_OP_SUBB:
|
| 1067 | 367e86e8 | bellard | case CC_OP_SUBW:
|
| 1068 | 367e86e8 | bellard | case CC_OP_SUBL:
|
| 1069 | 367e86e8 | bellard | func = gen_jcc_sub[s->cc_op - CC_OP_SUBB][jcc_op]; |
| 1070 | 367e86e8 | bellard | if (!func)
|
| 1071 | 367e86e8 | bellard | goto slow_jcc;
|
| 1072 | 367e86e8 | bellard | break;
|
| 1073 | 367e86e8 | bellard | |
| 1074 | 367e86e8 | bellard | /* some jumps are easy to compute */
|
| 1075 | 367e86e8 | bellard | case CC_OP_ADDB:
|
| 1076 | 367e86e8 | bellard | case CC_OP_ADDW:
|
| 1077 | 367e86e8 | bellard | case CC_OP_ADDL:
|
| 1078 | 4b74fe1f | bellard | case CC_OP_ADCB:
|
| 1079 | 4b74fe1f | bellard | case CC_OP_ADCW:
|
| 1080 | 4b74fe1f | bellard | case CC_OP_ADCL:
|
| 1081 | 4b74fe1f | bellard | case CC_OP_SBBB:
|
| 1082 | 4b74fe1f | bellard | case CC_OP_SBBW:
|
| 1083 | 4b74fe1f | bellard | case CC_OP_SBBL:
|
| 1084 | 367e86e8 | bellard | case CC_OP_LOGICB:
|
| 1085 | 367e86e8 | bellard | case CC_OP_LOGICW:
|
| 1086 | 367e86e8 | bellard | case CC_OP_LOGICL:
|
| 1087 | 367e86e8 | bellard | case CC_OP_INCB:
|
| 1088 | 367e86e8 | bellard | case CC_OP_INCW:
|
| 1089 | 367e86e8 | bellard | case CC_OP_INCL:
|
| 1090 | 367e86e8 | bellard | case CC_OP_DECB:
|
| 1091 | 367e86e8 | bellard | case CC_OP_DECW:
|
| 1092 | 367e86e8 | bellard | case CC_OP_DECL:
|
| 1093 | 367e86e8 | bellard | case CC_OP_SHLB:
|
| 1094 | 367e86e8 | bellard | case CC_OP_SHLW:
|
| 1095 | 367e86e8 | bellard | case CC_OP_SHLL:
|
| 1096 | 4b74fe1f | bellard | case CC_OP_SARB:
|
| 1097 | 4b74fe1f | bellard | case CC_OP_SARW:
|
| 1098 | 4b74fe1f | bellard | case CC_OP_SARL:
|
| 1099 | 367e86e8 | bellard | switch(jcc_op) {
|
| 1100 | 367e86e8 | bellard | case JCC_Z:
|
| 1101 | 367e86e8 | bellard | func = gen_jcc_sub[(s->cc_op - CC_OP_ADDB) % 3][jcc_op];
|
| 1102 | 367e86e8 | bellard | break;
|
| 1103 | 367e86e8 | bellard | case JCC_S:
|
| 1104 | 367e86e8 | bellard | func = gen_jcc_sub[(s->cc_op - CC_OP_ADDB) % 3][jcc_op];
|
| 1105 | 367e86e8 | bellard | break;
|
| 1106 | 367e86e8 | bellard | default:
|
| 1107 | 367e86e8 | bellard | goto slow_jcc;
|
| 1108 | 367e86e8 | bellard | } |
| 1109 | 367e86e8 | bellard | break;
|
| 1110 | 367e86e8 | bellard | default:
|
| 1111 | 367e86e8 | bellard | slow_jcc:
|
| 1112 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 1113 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 1114 | 367e86e8 | bellard | func = gen_jcc_slow[jcc_op]; |
| 1115 | 367e86e8 | bellard | break;
|
| 1116 | 367e86e8 | bellard | } |
| 1117 | 367e86e8 | bellard | if (!inv) {
|
| 1118 | dab2ed99 | bellard | func(val, next_eip); |
| 1119 | 367e86e8 | bellard | } else {
|
| 1120 | dab2ed99 | bellard | func(next_eip, val); |
| 1121 | 367e86e8 | bellard | } |
| 1122 | 367e86e8 | bellard | } |
| 1123 | 367e86e8 | bellard | |
| 1124 | 367e86e8 | bellard | static void gen_setcc(DisasContext *s, int b) |
| 1125 | 367e86e8 | bellard | {
|
| 1126 | 367e86e8 | bellard | int inv, jcc_op;
|
| 1127 | 367e86e8 | bellard | GenOpFunc *func; |
| 1128 | 367e86e8 | bellard | |
| 1129 | 367e86e8 | bellard | inv = b & 1;
|
| 1130 | 367e86e8 | bellard | jcc_op = (b >> 1) & 7; |
| 1131 | 367e86e8 | bellard | switch(s->cc_op) {
|
| 1132 | 367e86e8 | bellard | /* we optimize the cmp/jcc case */
|
| 1133 | 367e86e8 | bellard | case CC_OP_SUBB:
|
| 1134 | 367e86e8 | bellard | case CC_OP_SUBW:
|
| 1135 | 367e86e8 | bellard | case CC_OP_SUBL:
|
| 1136 | 367e86e8 | bellard | func = gen_setcc_sub[s->cc_op - CC_OP_SUBB][jcc_op]; |
| 1137 | 367e86e8 | bellard | if (!func)
|
| 1138 | 367e86e8 | bellard | goto slow_jcc;
|
| 1139 | 367e86e8 | bellard | break;
|
| 1140 | 367e86e8 | bellard | |
| 1141 | 367e86e8 | bellard | /* some jumps are easy to compute */
|
| 1142 | 367e86e8 | bellard | case CC_OP_ADDB:
|
| 1143 | 367e86e8 | bellard | case CC_OP_ADDW:
|
| 1144 | 367e86e8 | bellard | case CC_OP_ADDL:
|
| 1145 | 367e86e8 | bellard | case CC_OP_LOGICB:
|
| 1146 | 367e86e8 | bellard | case CC_OP_LOGICW:
|
| 1147 | 367e86e8 | bellard | case CC_OP_LOGICL:
|
| 1148 | 367e86e8 | bellard | case CC_OP_INCB:
|
| 1149 | 367e86e8 | bellard | case CC_OP_INCW:
|
| 1150 | 367e86e8 | bellard | case CC_OP_INCL:
|
| 1151 | 367e86e8 | bellard | case CC_OP_DECB:
|
| 1152 | 367e86e8 | bellard | case CC_OP_DECW:
|
| 1153 | 367e86e8 | bellard | case CC_OP_DECL:
|
| 1154 | 367e86e8 | bellard | case CC_OP_SHLB:
|
| 1155 | 367e86e8 | bellard | case CC_OP_SHLW:
|
| 1156 | 367e86e8 | bellard | case CC_OP_SHLL:
|
| 1157 | 367e86e8 | bellard | switch(jcc_op) {
|
| 1158 | 367e86e8 | bellard | case JCC_Z:
|
| 1159 | 1017ebe9 | bellard | func = gen_setcc_sub[(s->cc_op - CC_OP_ADDB) % 3][jcc_op];
|
| 1160 | 367e86e8 | bellard | break;
|
| 1161 | 367e86e8 | bellard | case JCC_S:
|
| 1162 | 1017ebe9 | bellard | func = gen_setcc_sub[(s->cc_op - CC_OP_ADDB) % 3][jcc_op];
|
| 1163 | 367e86e8 | bellard | break;
|
| 1164 | 367e86e8 | bellard | default:
|
| 1165 | 367e86e8 | bellard | goto slow_jcc;
|
| 1166 | 367e86e8 | bellard | } |
| 1167 | 367e86e8 | bellard | break;
|
| 1168 | 367e86e8 | bellard | default:
|
| 1169 | 367e86e8 | bellard | slow_jcc:
|
| 1170 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 1171 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 1172 | 367e86e8 | bellard | func = gen_setcc_slow[jcc_op]; |
| 1173 | 367e86e8 | bellard | break;
|
| 1174 | 367e86e8 | bellard | } |
| 1175 | 367e86e8 | bellard | func(); |
| 1176 | 367e86e8 | bellard | if (inv) {
|
| 1177 | 367e86e8 | bellard | gen_op_xor_T0_1(); |
| 1178 | 367e86e8 | bellard | } |
| 1179 | 367e86e8 | bellard | } |
| 1180 | 367e86e8 | bellard | |
| 1181 | 6dbad63e | bellard | /* move T0 to seg_reg and compute if the CPU state may change */
|
| 1182 | dab2ed99 | bellard | static void gen_movl_seg_T0(DisasContext *s, int seg_reg) |
| 1183 | 6dbad63e | bellard | {
|
| 1184 | 6dbad63e | bellard | gen_op_movl_seg_T0(seg_reg); |
| 1185 | 6dbad63e | bellard | if (!s->addseg && seg_reg < R_FS)
|
| 1186 | 6dbad63e | bellard | s->is_jmp = 2; /* abort translation because the register may |
| 1187 | 6dbad63e | bellard | have a non zero base */
|
| 1188 | 6dbad63e | bellard | } |
| 1189 | 6dbad63e | bellard | |
| 1190 | dab2ed99 | bellard | /* generate a push. It depends on ss32, addseg and dflag */
|
| 1191 | dab2ed99 | bellard | static void gen_push_T0(DisasContext *s) |
| 1192 | dab2ed99 | bellard | {
|
| 1193 | dab2ed99 | bellard | if (s->ss32) {
|
| 1194 | dab2ed99 | bellard | if (!s->addseg) {
|
| 1195 | dab2ed99 | bellard | if (s->dflag)
|
| 1196 | dab2ed99 | bellard | gen_op_pushl_T0(); |
| 1197 | dab2ed99 | bellard | else
|
| 1198 | dab2ed99 | bellard | gen_op_pushw_T0(); |
| 1199 | dab2ed99 | bellard | } else {
|
| 1200 | dab2ed99 | bellard | if (s->dflag)
|
| 1201 | dab2ed99 | bellard | gen_op_pushl_ss32_T0(); |
| 1202 | dab2ed99 | bellard | else
|
| 1203 | dab2ed99 | bellard | gen_op_pushw_ss32_T0(); |
| 1204 | dab2ed99 | bellard | } |
| 1205 | dab2ed99 | bellard | } else {
|
| 1206 | dab2ed99 | bellard | if (s->dflag)
|
| 1207 | dab2ed99 | bellard | gen_op_pushl_ss16_T0(); |
| 1208 | dab2ed99 | bellard | else
|
| 1209 | dab2ed99 | bellard | gen_op_pushw_ss16_T0(); |
| 1210 | dab2ed99 | bellard | } |
| 1211 | dab2ed99 | bellard | } |
| 1212 | dab2ed99 | bellard | |
| 1213 | dab2ed99 | bellard | /* two step pop is necessary for precise exceptions */
|
| 1214 | dab2ed99 | bellard | static void gen_pop_T0(DisasContext *s) |
| 1215 | dab2ed99 | bellard | {
|
| 1216 | dab2ed99 | bellard | if (s->ss32) {
|
| 1217 | dab2ed99 | bellard | if (!s->addseg) {
|
| 1218 | dab2ed99 | bellard | if (s->dflag)
|
| 1219 | dab2ed99 | bellard | gen_op_popl_T0(); |
| 1220 | dab2ed99 | bellard | else
|
| 1221 | dab2ed99 | bellard | gen_op_popw_T0(); |
| 1222 | dab2ed99 | bellard | } else {
|
| 1223 | dab2ed99 | bellard | if (s->dflag)
|
| 1224 | dab2ed99 | bellard | gen_op_popl_ss32_T0(); |
| 1225 | dab2ed99 | bellard | else
|
| 1226 | dab2ed99 | bellard | gen_op_popw_ss32_T0(); |
| 1227 | dab2ed99 | bellard | } |
| 1228 | dab2ed99 | bellard | } else {
|
| 1229 | dab2ed99 | bellard | if (s->dflag)
|
| 1230 | dab2ed99 | bellard | gen_op_popl_ss16_T0(); |
| 1231 | dab2ed99 | bellard | else
|
| 1232 | dab2ed99 | bellard | gen_op_popw_ss16_T0(); |
| 1233 | dab2ed99 | bellard | } |
| 1234 | dab2ed99 | bellard | } |
| 1235 | dab2ed99 | bellard | |
| 1236 | dab2ed99 | bellard | static void gen_pop_update(DisasContext *s) |
| 1237 | dab2ed99 | bellard | {
|
| 1238 | dab2ed99 | bellard | if (s->ss32) {
|
| 1239 | dab2ed99 | bellard | if (s->dflag)
|
| 1240 | dab2ed99 | bellard | gen_op_addl_ESP_4(); |
| 1241 | dab2ed99 | bellard | else
|
| 1242 | dab2ed99 | bellard | gen_op_addl_ESP_2(); |
| 1243 | dab2ed99 | bellard | } else {
|
| 1244 | dab2ed99 | bellard | if (s->dflag)
|
| 1245 | dab2ed99 | bellard | gen_op_addw_ESP_4(); |
| 1246 | dab2ed99 | bellard | else
|
| 1247 | dab2ed99 | bellard | gen_op_addw_ESP_2(); |
| 1248 | dab2ed99 | bellard | } |
| 1249 | dab2ed99 | bellard | } |
| 1250 | dab2ed99 | bellard | |
| 1251 | dab2ed99 | bellard | /* NOTE: wrap around in 16 bit not fully handled */
|
| 1252 | dab2ed99 | bellard | static void gen_pusha(DisasContext *s) |
| 1253 | dab2ed99 | bellard | {
|
| 1254 | dab2ed99 | bellard | int i;
|
| 1255 | dab2ed99 | bellard | gen_op_movl_A0_ESP(); |
| 1256 | dab2ed99 | bellard | gen_op_addl_A0_im(-16 << s->dflag);
|
| 1257 | dab2ed99 | bellard | if (!s->ss32)
|
| 1258 | dab2ed99 | bellard | gen_op_andl_A0_ffff(); |
| 1259 | dab2ed99 | bellard | gen_op_movl_T1_A0(); |
| 1260 | dab2ed99 | bellard | if (s->addseg)
|
| 1261 | dab2ed99 | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[R_SS].base)); |
| 1262 | dab2ed99 | bellard | for(i = 0;i < 8; i++) { |
| 1263 | dab2ed99 | bellard | gen_op_mov_TN_reg[OT_LONG][0][7 - i](); |
| 1264 | dab2ed99 | bellard | gen_op_st_T0_A0[OT_WORD + s->dflag](); |
| 1265 | dab2ed99 | bellard | gen_op_addl_A0_im(2 << s->dflag);
|
| 1266 | dab2ed99 | bellard | } |
| 1267 | dab2ed99 | bellard | gen_op_mov_reg_T1[OT_WORD + s->dflag][R_ESP](); |
| 1268 | dab2ed99 | bellard | } |
| 1269 | dab2ed99 | bellard | |
| 1270 | dab2ed99 | bellard | /* NOTE: wrap around in 16 bit not fully handled */
|
| 1271 | dab2ed99 | bellard | static void gen_popa(DisasContext *s) |
| 1272 | dab2ed99 | bellard | {
|
| 1273 | dab2ed99 | bellard | int i;
|
| 1274 | dab2ed99 | bellard | gen_op_movl_A0_ESP(); |
| 1275 | dab2ed99 | bellard | if (!s->ss32)
|
| 1276 | dab2ed99 | bellard | gen_op_andl_A0_ffff(); |
| 1277 | dab2ed99 | bellard | gen_op_movl_T1_A0(); |
| 1278 | dab2ed99 | bellard | gen_op_addl_T1_im(16 << s->dflag);
|
| 1279 | dab2ed99 | bellard | if (s->addseg)
|
| 1280 | dab2ed99 | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[R_SS].base)); |
| 1281 | dab2ed99 | bellard | for(i = 0;i < 8; i++) { |
| 1282 | dab2ed99 | bellard | /* ESP is not reloaded */
|
| 1283 | dab2ed99 | bellard | if (i != 3) { |
| 1284 | dab2ed99 | bellard | gen_op_ld_T0_A0[OT_WORD + s->dflag](); |
| 1285 | dab2ed99 | bellard | gen_op_mov_reg_T0[OT_WORD + s->dflag][7 - i]();
|
| 1286 | dab2ed99 | bellard | } |
| 1287 | dab2ed99 | bellard | gen_op_addl_A0_im(2 << s->dflag);
|
| 1288 | dab2ed99 | bellard | } |
| 1289 | dab2ed99 | bellard | gen_op_mov_reg_T1[OT_WORD + s->dflag][R_ESP](); |
| 1290 | dab2ed99 | bellard | } |
| 1291 | dab2ed99 | bellard | |
| 1292 | dab2ed99 | bellard | /* NOTE: wrap around in 16 bit not fully handled */
|
| 1293 | dab2ed99 | bellard | /* XXX: check this */
|
| 1294 | dab2ed99 | bellard | static void gen_enter(DisasContext *s, int esp_addend, int level) |
| 1295 | dab2ed99 | bellard | {
|
| 1296 | dab2ed99 | bellard | int ot, level1, addend, opsize;
|
| 1297 | dab2ed99 | bellard | |
| 1298 | dab2ed99 | bellard | ot = s->dflag + OT_WORD; |
| 1299 | dab2ed99 | bellard | level &= 0x1f;
|
| 1300 | dab2ed99 | bellard | level1 = level; |
| 1301 | dab2ed99 | bellard | opsize = 2 << s->dflag;
|
| 1302 | dab2ed99 | bellard | |
| 1303 | dab2ed99 | bellard | gen_op_movl_A0_ESP(); |
| 1304 | dab2ed99 | bellard | gen_op_addl_A0_im(-opsize); |
| 1305 | dab2ed99 | bellard | if (!s->ss32)
|
| 1306 | dab2ed99 | bellard | gen_op_andl_A0_ffff(); |
| 1307 | dab2ed99 | bellard | gen_op_movl_T1_A0(); |
| 1308 | dab2ed99 | bellard | if (s->addseg)
|
| 1309 | dab2ed99 | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[R_SS].base)); |
| 1310 | dab2ed99 | bellard | /* push bp */
|
| 1311 | dab2ed99 | bellard | gen_op_mov_TN_reg[OT_LONG][0][R_EBP]();
|
| 1312 | dab2ed99 | bellard | gen_op_st_T0_A0[ot](); |
| 1313 | dab2ed99 | bellard | if (level) {
|
| 1314 | dab2ed99 | bellard | while (level--) {
|
| 1315 | dab2ed99 | bellard | gen_op_addl_A0_im(-opsize); |
| 1316 | dab2ed99 | bellard | gen_op_addl_T0_im(-opsize); |
| 1317 | dab2ed99 | bellard | gen_op_st_T0_A0[ot](); |
| 1318 | dab2ed99 | bellard | } |
| 1319 | dab2ed99 | bellard | gen_op_addl_A0_im(-opsize); |
| 1320 | dab2ed99 | bellard | /* XXX: add st_T1_A0 ? */
|
| 1321 | dab2ed99 | bellard | gen_op_movl_T0_T1(); |
| 1322 | dab2ed99 | bellard | gen_op_st_T0_A0[ot](); |
| 1323 | dab2ed99 | bellard | } |
| 1324 | dab2ed99 | bellard | gen_op_mov_reg_T1[ot][R_EBP](); |
| 1325 | dab2ed99 | bellard | addend = -esp_addend; |
| 1326 | dab2ed99 | bellard | if (level1)
|
| 1327 | dab2ed99 | bellard | addend -= opsize * (level1 + 1);
|
| 1328 | dab2ed99 | bellard | gen_op_addl_T1_im(addend); |
| 1329 | dab2ed99 | bellard | gen_op_mov_reg_T1[ot][R_ESP](); |
| 1330 | dab2ed99 | bellard | } |
| 1331 | dab2ed99 | bellard | |
| 1332 | 0ecfa993 | bellard | /* return the next pc address. Return -1 if no insn found. *is_jmp_ptr
|
| 1333 | 0ecfa993 | bellard | is set to true if the instruction sets the PC (last instruction of
|
| 1334 | 0ecfa993 | bellard | a basic block) */
|
| 1335 | 6dbad63e | bellard | long disas_insn(DisasContext *s, uint8_t *pc_start)
|
| 1336 | 367e86e8 | bellard | {
|
| 1337 | 367e86e8 | bellard | int b, prefixes, aflag, dflag;
|
| 1338 | 367e86e8 | bellard | int shift, ot;
|
| 1339 | 367e86e8 | bellard | int modrm, reg, rm, mod, reg_addr, op, opreg, offset_addr, val;
|
| 1340 | dab2ed99 | bellard | unsigned int next_eip; |
| 1341 | 367e86e8 | bellard | |
| 1342 | 367e86e8 | bellard | s->pc = pc_start; |
| 1343 | 367e86e8 | bellard | prefixes = 0;
|
| 1344 | 6dbad63e | bellard | aflag = s->code32; |
| 1345 | 6dbad63e | bellard | dflag = s->code32; |
| 1346 | 367e86e8 | bellard | // cur_pc = s->pc; /* for insn generation */
|
| 1347 | 367e86e8 | bellard | next_byte:
|
| 1348 | 367e86e8 | bellard | b = ldub(s->pc); |
| 1349 | 367e86e8 | bellard | s->pc++; |
| 1350 | 367e86e8 | bellard | /* check prefixes */
|
| 1351 | 367e86e8 | bellard | switch (b) {
|
| 1352 | 367e86e8 | bellard | case 0xf3: |
| 1353 | 367e86e8 | bellard | prefixes |= PREFIX_REPZ; |
| 1354 | 367e86e8 | bellard | goto next_byte;
|
| 1355 | 367e86e8 | bellard | case 0xf2: |
| 1356 | 367e86e8 | bellard | prefixes |= PREFIX_REPNZ; |
| 1357 | 367e86e8 | bellard | goto next_byte;
|
| 1358 | 367e86e8 | bellard | case 0xf0: |
| 1359 | 367e86e8 | bellard | prefixes |= PREFIX_LOCK; |
| 1360 | 367e86e8 | bellard | goto next_byte;
|
| 1361 | 367e86e8 | bellard | case 0x2e: |
| 1362 | 367e86e8 | bellard | prefixes |= PREFIX_CS; |
| 1363 | 367e86e8 | bellard | goto next_byte;
|
| 1364 | 367e86e8 | bellard | case 0x36: |
| 1365 | 367e86e8 | bellard | prefixes |= PREFIX_SS; |
| 1366 | 367e86e8 | bellard | goto next_byte;
|
| 1367 | 367e86e8 | bellard | case 0x3e: |
| 1368 | 367e86e8 | bellard | prefixes |= PREFIX_DS; |
| 1369 | 367e86e8 | bellard | goto next_byte;
|
| 1370 | 367e86e8 | bellard | case 0x26: |
| 1371 | 367e86e8 | bellard | prefixes |= PREFIX_ES; |
| 1372 | 367e86e8 | bellard | goto next_byte;
|
| 1373 | 367e86e8 | bellard | case 0x64: |
| 1374 | 367e86e8 | bellard | prefixes |= PREFIX_FS; |
| 1375 | 367e86e8 | bellard | goto next_byte;
|
| 1376 | 367e86e8 | bellard | case 0x65: |
| 1377 | 367e86e8 | bellard | prefixes |= PREFIX_GS; |
| 1378 | 367e86e8 | bellard | goto next_byte;
|
| 1379 | 367e86e8 | bellard | case 0x66: |
| 1380 | 367e86e8 | bellard | prefixes |= PREFIX_DATA; |
| 1381 | 367e86e8 | bellard | goto next_byte;
|
| 1382 | 367e86e8 | bellard | case 0x67: |
| 1383 | 367e86e8 | bellard | prefixes |= PREFIX_ADR; |
| 1384 | 367e86e8 | bellard | goto next_byte;
|
| 1385 | 367e86e8 | bellard | case 0x9b: |
| 1386 | 367e86e8 | bellard | prefixes |= PREFIX_FWAIT; |
| 1387 | 367e86e8 | bellard | goto next_byte;
|
| 1388 | 367e86e8 | bellard | } |
| 1389 | 367e86e8 | bellard | |
| 1390 | 367e86e8 | bellard | if (prefixes & PREFIX_DATA)
|
| 1391 | 367e86e8 | bellard | dflag ^= 1;
|
| 1392 | 367e86e8 | bellard | if (prefixes & PREFIX_ADR)
|
| 1393 | 367e86e8 | bellard | aflag ^= 1;
|
| 1394 | 367e86e8 | bellard | |
| 1395 | 367e86e8 | bellard | s->prefix = prefixes; |
| 1396 | 367e86e8 | bellard | s->aflag = aflag; |
| 1397 | 367e86e8 | bellard | s->dflag = dflag; |
| 1398 | 367e86e8 | bellard | |
| 1399 | 1b6b029e | bellard | /* lock generation */
|
| 1400 | 1b6b029e | bellard | if (prefixes & PREFIX_LOCK)
|
| 1401 | 1b6b029e | bellard | gen_op_lock(); |
| 1402 | 1b6b029e | bellard | |
| 1403 | 367e86e8 | bellard | /* now check op code */
|
| 1404 | 367e86e8 | bellard | reswitch:
|
| 1405 | 367e86e8 | bellard | switch(b) {
|
| 1406 | 367e86e8 | bellard | case 0x0f: |
| 1407 | 367e86e8 | bellard | /**************************/
|
| 1408 | 367e86e8 | bellard | /* extended op code */
|
| 1409 | 367e86e8 | bellard | b = ldub(s->pc++) | 0x100;
|
| 1410 | 367e86e8 | bellard | goto reswitch;
|
| 1411 | 367e86e8 | bellard | |
| 1412 | 367e86e8 | bellard | /**************************/
|
| 1413 | 367e86e8 | bellard | /* arith & logic */
|
| 1414 | 367e86e8 | bellard | case 0x00 ... 0x05: |
| 1415 | 367e86e8 | bellard | case 0x08 ... 0x0d: |
| 1416 | 367e86e8 | bellard | case 0x10 ... 0x15: |
| 1417 | 367e86e8 | bellard | case 0x18 ... 0x1d: |
| 1418 | 367e86e8 | bellard | case 0x20 ... 0x25: |
| 1419 | 367e86e8 | bellard | case 0x28 ... 0x2d: |
| 1420 | 367e86e8 | bellard | case 0x30 ... 0x35: |
| 1421 | 367e86e8 | bellard | case 0x38 ... 0x3d: |
| 1422 | 367e86e8 | bellard | {
|
| 1423 | 367e86e8 | bellard | int op, f, val;
|
| 1424 | 367e86e8 | bellard | op = (b >> 3) & 7; |
| 1425 | 367e86e8 | bellard | f = (b >> 1) & 3; |
| 1426 | 367e86e8 | bellard | |
| 1427 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1428 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1429 | 367e86e8 | bellard | else
|
| 1430 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1431 | 367e86e8 | bellard | |
| 1432 | 367e86e8 | bellard | switch(f) {
|
| 1433 | 367e86e8 | bellard | case 0: /* OP Ev, Gv */ |
| 1434 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1435 | 367e86e8 | bellard | reg = ((modrm >> 3) & 7) + OR_EAX; |
| 1436 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1437 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1438 | 367e86e8 | bellard | if (mod != 3) { |
| 1439 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1440 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 1441 | 367e86e8 | bellard | opreg = OR_TMP0; |
| 1442 | 367e86e8 | bellard | } else {
|
| 1443 | 367e86e8 | bellard | opreg = OR_EAX + rm; |
| 1444 | 367e86e8 | bellard | } |
| 1445 | 367e86e8 | bellard | gen_op(s, op, ot, opreg, reg); |
| 1446 | 367e86e8 | bellard | if (mod != 3 && op != 7) { |
| 1447 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1448 | 367e86e8 | bellard | } |
| 1449 | 367e86e8 | bellard | break;
|
| 1450 | 367e86e8 | bellard | case 1: /* OP Gv, Ev */ |
| 1451 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1452 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1453 | 367e86e8 | bellard | reg = ((modrm >> 3) & 7) + OR_EAX; |
| 1454 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1455 | 367e86e8 | bellard | if (mod != 3) { |
| 1456 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1457 | 367e86e8 | bellard | gen_op_ld_T1_A0[ot](); |
| 1458 | 367e86e8 | bellard | opreg = OR_TMP1; |
| 1459 | 367e86e8 | bellard | } else {
|
| 1460 | 367e86e8 | bellard | opreg = OR_EAX + rm; |
| 1461 | 367e86e8 | bellard | } |
| 1462 | 367e86e8 | bellard | gen_op(s, op, ot, reg, opreg); |
| 1463 | 367e86e8 | bellard | break;
|
| 1464 | 367e86e8 | bellard | case 2: /* OP A, Iv */ |
| 1465 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1466 | 367e86e8 | bellard | gen_opi(s, op, ot, OR_EAX, val); |
| 1467 | 367e86e8 | bellard | break;
|
| 1468 | 367e86e8 | bellard | } |
| 1469 | 367e86e8 | bellard | } |
| 1470 | 367e86e8 | bellard | break;
|
| 1471 | 367e86e8 | bellard | |
| 1472 | 367e86e8 | bellard | case 0x80: /* GRP1 */ |
| 1473 | 367e86e8 | bellard | case 0x81: |
| 1474 | 367e86e8 | bellard | case 0x83: |
| 1475 | 367e86e8 | bellard | {
|
| 1476 | 367e86e8 | bellard | int val;
|
| 1477 | 367e86e8 | bellard | |
| 1478 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1479 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1480 | 367e86e8 | bellard | else
|
| 1481 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1482 | 367e86e8 | bellard | |
| 1483 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1484 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1485 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1486 | 367e86e8 | bellard | op = (modrm >> 3) & 7; |
| 1487 | 367e86e8 | bellard | |
| 1488 | 367e86e8 | bellard | if (mod != 3) { |
| 1489 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1490 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 1491 | 367e86e8 | bellard | opreg = OR_TMP0; |
| 1492 | 367e86e8 | bellard | } else {
|
| 1493 | 367e86e8 | bellard | opreg = rm + OR_EAX; |
| 1494 | 367e86e8 | bellard | } |
| 1495 | 367e86e8 | bellard | |
| 1496 | 367e86e8 | bellard | switch(b) {
|
| 1497 | 367e86e8 | bellard | default:
|
| 1498 | 367e86e8 | bellard | case 0x80: |
| 1499 | 367e86e8 | bellard | case 0x81: |
| 1500 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1501 | 367e86e8 | bellard | break;
|
| 1502 | 367e86e8 | bellard | case 0x83: |
| 1503 | 367e86e8 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 1504 | 367e86e8 | bellard | break;
|
| 1505 | 367e86e8 | bellard | } |
| 1506 | 367e86e8 | bellard | |
| 1507 | 367e86e8 | bellard | gen_opi(s, op, ot, opreg, val); |
| 1508 | 367e86e8 | bellard | if (op != 7 && mod != 3) { |
| 1509 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1510 | 367e86e8 | bellard | } |
| 1511 | 367e86e8 | bellard | } |
| 1512 | 367e86e8 | bellard | break;
|
| 1513 | 367e86e8 | bellard | |
| 1514 | 367e86e8 | bellard | /**************************/
|
| 1515 | 367e86e8 | bellard | /* inc, dec, and other misc arith */
|
| 1516 | 367e86e8 | bellard | case 0x40 ... 0x47: /* inc Gv */ |
| 1517 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1518 | 367e86e8 | bellard | gen_inc(s, ot, OR_EAX + (b & 7), 1); |
| 1519 | 367e86e8 | bellard | break;
|
| 1520 | 367e86e8 | bellard | case 0x48 ... 0x4f: /* dec Gv */ |
| 1521 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1522 | 367e86e8 | bellard | gen_inc(s, ot, OR_EAX + (b & 7), -1); |
| 1523 | 367e86e8 | bellard | break;
|
| 1524 | 367e86e8 | bellard | case 0xf6: /* GRP3 */ |
| 1525 | 367e86e8 | bellard | case 0xf7: |
| 1526 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1527 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1528 | 367e86e8 | bellard | else
|
| 1529 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1530 | 367e86e8 | bellard | |
| 1531 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1532 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1533 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1534 | 367e86e8 | bellard | op = (modrm >> 3) & 7; |
| 1535 | 367e86e8 | bellard | if (mod != 3) { |
| 1536 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1537 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 1538 | 367e86e8 | bellard | } else {
|
| 1539 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 1540 | 367e86e8 | bellard | } |
| 1541 | 367e86e8 | bellard | |
| 1542 | 367e86e8 | bellard | switch(op) {
|
| 1543 | 367e86e8 | bellard | case 0: /* test */ |
| 1544 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1545 | ba1c6e37 | bellard | gen_op_movl_T1_im(val); |
| 1546 | 367e86e8 | bellard | gen_op_testl_T0_T1_cc(); |
| 1547 | 367e86e8 | bellard | s->cc_op = CC_OP_LOGICB + ot; |
| 1548 | 367e86e8 | bellard | break;
|
| 1549 | 367e86e8 | bellard | case 2: /* not */ |
| 1550 | 367e86e8 | bellard | gen_op_notl_T0(); |
| 1551 | 367e86e8 | bellard | if (mod != 3) { |
| 1552 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1553 | 367e86e8 | bellard | } else {
|
| 1554 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1555 | 367e86e8 | bellard | } |
| 1556 | 367e86e8 | bellard | break;
|
| 1557 | 367e86e8 | bellard | case 3: /* neg */ |
| 1558 | 367e86e8 | bellard | gen_op_negl_T0_cc(); |
| 1559 | 367e86e8 | bellard | if (mod != 3) { |
| 1560 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1561 | 367e86e8 | bellard | } else {
|
| 1562 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1563 | 367e86e8 | bellard | } |
| 1564 | 367e86e8 | bellard | s->cc_op = CC_OP_SUBB + ot; |
| 1565 | 367e86e8 | bellard | break;
|
| 1566 | 367e86e8 | bellard | case 4: /* mul */ |
| 1567 | 367e86e8 | bellard | switch(ot) {
|
| 1568 | 367e86e8 | bellard | case OT_BYTE:
|
| 1569 | 367e86e8 | bellard | gen_op_mulb_AL_T0(); |
| 1570 | 367e86e8 | bellard | break;
|
| 1571 | 367e86e8 | bellard | case OT_WORD:
|
| 1572 | 367e86e8 | bellard | gen_op_mulw_AX_T0(); |
| 1573 | 367e86e8 | bellard | break;
|
| 1574 | 367e86e8 | bellard | default:
|
| 1575 | 367e86e8 | bellard | case OT_LONG:
|
| 1576 | 367e86e8 | bellard | gen_op_mull_EAX_T0(); |
| 1577 | 367e86e8 | bellard | break;
|
| 1578 | 367e86e8 | bellard | } |
| 1579 | 0ecfa993 | bellard | s->cc_op = CC_OP_MUL; |
| 1580 | 367e86e8 | bellard | break;
|
| 1581 | 367e86e8 | bellard | case 5: /* imul */ |
| 1582 | 367e86e8 | bellard | switch(ot) {
|
| 1583 | 367e86e8 | bellard | case OT_BYTE:
|
| 1584 | 367e86e8 | bellard | gen_op_imulb_AL_T0(); |
| 1585 | 367e86e8 | bellard | break;
|
| 1586 | 367e86e8 | bellard | case OT_WORD:
|
| 1587 | 367e86e8 | bellard | gen_op_imulw_AX_T0(); |
| 1588 | 367e86e8 | bellard | break;
|
| 1589 | 367e86e8 | bellard | default:
|
| 1590 | 367e86e8 | bellard | case OT_LONG:
|
| 1591 | 367e86e8 | bellard | gen_op_imull_EAX_T0(); |
| 1592 | 367e86e8 | bellard | break;
|
| 1593 | 367e86e8 | bellard | } |
| 1594 | 0ecfa993 | bellard | s->cc_op = CC_OP_MUL; |
| 1595 | 367e86e8 | bellard | break;
|
| 1596 | 367e86e8 | bellard | case 6: /* div */ |
| 1597 | 367e86e8 | bellard | switch(ot) {
|
| 1598 | 367e86e8 | bellard | case OT_BYTE:
|
| 1599 | 367e86e8 | bellard | gen_op_divb_AL_T0(); |
| 1600 | 367e86e8 | bellard | break;
|
| 1601 | 367e86e8 | bellard | case OT_WORD:
|
| 1602 | 367e86e8 | bellard | gen_op_divw_AX_T0(); |
| 1603 | 367e86e8 | bellard | break;
|
| 1604 | 367e86e8 | bellard | default:
|
| 1605 | 367e86e8 | bellard | case OT_LONG:
|
| 1606 | 367e86e8 | bellard | gen_op_divl_EAX_T0(); |
| 1607 | 367e86e8 | bellard | break;
|
| 1608 | 367e86e8 | bellard | } |
| 1609 | 367e86e8 | bellard | break;
|
| 1610 | 367e86e8 | bellard | case 7: /* idiv */ |
| 1611 | 367e86e8 | bellard | switch(ot) {
|
| 1612 | 367e86e8 | bellard | case OT_BYTE:
|
| 1613 | 367e86e8 | bellard | gen_op_idivb_AL_T0(); |
| 1614 | 367e86e8 | bellard | break;
|
| 1615 | 367e86e8 | bellard | case OT_WORD:
|
| 1616 | 367e86e8 | bellard | gen_op_idivw_AX_T0(); |
| 1617 | 367e86e8 | bellard | break;
|
| 1618 | 367e86e8 | bellard | default:
|
| 1619 | 367e86e8 | bellard | case OT_LONG:
|
| 1620 | 367e86e8 | bellard | gen_op_idivl_EAX_T0(); |
| 1621 | 367e86e8 | bellard | break;
|
| 1622 | 367e86e8 | bellard | } |
| 1623 | 367e86e8 | bellard | break;
|
| 1624 | 367e86e8 | bellard | default:
|
| 1625 | 1a9353d2 | bellard | goto illegal_op;
|
| 1626 | 367e86e8 | bellard | } |
| 1627 | 367e86e8 | bellard | break;
|
| 1628 | 367e86e8 | bellard | |
| 1629 | 367e86e8 | bellard | case 0xfe: /* GRP4 */ |
| 1630 | 367e86e8 | bellard | case 0xff: /* GRP5 */ |
| 1631 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1632 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1633 | 367e86e8 | bellard | else
|
| 1634 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1635 | 367e86e8 | bellard | |
| 1636 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1637 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1638 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1639 | 367e86e8 | bellard | op = (modrm >> 3) & 7; |
| 1640 | 367e86e8 | bellard | if (op >= 2 && b == 0xfe) { |
| 1641 | 1a9353d2 | bellard | goto illegal_op;
|
| 1642 | 367e86e8 | bellard | } |
| 1643 | 367e86e8 | bellard | if (mod != 3) { |
| 1644 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1645 | dab2ed99 | bellard | if (op != 3 && op != 5) |
| 1646 | dab2ed99 | bellard | gen_op_ld_T0_A0[ot](); |
| 1647 | 367e86e8 | bellard | } else {
|
| 1648 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 1649 | 367e86e8 | bellard | } |
| 1650 | 367e86e8 | bellard | |
| 1651 | 367e86e8 | bellard | switch(op) {
|
| 1652 | 367e86e8 | bellard | case 0: /* inc Ev */ |
| 1653 | 367e86e8 | bellard | gen_inc(s, ot, OR_TMP0, 1);
|
| 1654 | 367e86e8 | bellard | if (mod != 3) |
| 1655 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1656 | 4b74fe1f | bellard | else
|
| 1657 | 4b74fe1f | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1658 | 367e86e8 | bellard | break;
|
| 1659 | 367e86e8 | bellard | case 1: /* dec Ev */ |
| 1660 | 367e86e8 | bellard | gen_inc(s, ot, OR_TMP0, -1);
|
| 1661 | 367e86e8 | bellard | if (mod != 3) |
| 1662 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 1663 | 4b74fe1f | bellard | else
|
| 1664 | 4b74fe1f | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1665 | 367e86e8 | bellard | break;
|
| 1666 | 367e86e8 | bellard | case 2: /* call Ev */ |
| 1667 | dab2ed99 | bellard | /* XXX: optimize if memory (no and is necessary) */
|
| 1668 | dab2ed99 | bellard | if (s->dflag == 0) |
| 1669 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 1670 | dab2ed99 | bellard | gen_op_jmp_T0(); |
| 1671 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 1672 | dab2ed99 | bellard | gen_op_movl_T0_im(next_eip); |
| 1673 | dab2ed99 | bellard | gen_push_T0(s); |
| 1674 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 1675 | dab2ed99 | bellard | break;
|
| 1676 | dab2ed99 | bellard | case 3: /* lcall Ev */ |
| 1677 | dab2ed99 | bellard | /* push return segment + offset */
|
| 1678 | dab2ed99 | bellard | gen_op_movl_T0_seg(R_CS); |
| 1679 | dab2ed99 | bellard | gen_push_T0(s); |
| 1680 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 1681 | dab2ed99 | bellard | gen_op_movl_T0_im(next_eip); |
| 1682 | dab2ed99 | bellard | gen_push_T0(s); |
| 1683 | dab2ed99 | bellard | |
| 1684 | dab2ed99 | bellard | gen_op_ld_T1_A0[ot](); |
| 1685 | dab2ed99 | bellard | gen_op_addl_A0_im(1 << (ot - OT_WORD + 1)); |
| 1686 | dab2ed99 | bellard | gen_op_lduw_T0_A0(); |
| 1687 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 1688 | dab2ed99 | bellard | gen_op_movl_T0_T1(); |
| 1689 | 367e86e8 | bellard | gen_op_jmp_T0(); |
| 1690 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 1691 | 367e86e8 | bellard | break;
|
| 1692 | 367e86e8 | bellard | case 4: /* jmp Ev */ |
| 1693 | dab2ed99 | bellard | if (s->dflag == 0) |
| 1694 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 1695 | dab2ed99 | bellard | gen_op_jmp_T0(); |
| 1696 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 1697 | dab2ed99 | bellard | break;
|
| 1698 | dab2ed99 | bellard | case 5: /* ljmp Ev */ |
| 1699 | dab2ed99 | bellard | gen_op_ld_T1_A0[ot](); |
| 1700 | dab2ed99 | bellard | gen_op_addl_A0_im(1 << (ot - OT_WORD + 1)); |
| 1701 | dab2ed99 | bellard | gen_op_lduw_T0_A0(); |
| 1702 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 1703 | dab2ed99 | bellard | gen_op_movl_T0_T1(); |
| 1704 | 367e86e8 | bellard | gen_op_jmp_T0(); |
| 1705 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 1706 | 367e86e8 | bellard | break;
|
| 1707 | 367e86e8 | bellard | case 6: /* push Ev */ |
| 1708 | dab2ed99 | bellard | gen_push_T0(s); |
| 1709 | 367e86e8 | bellard | break;
|
| 1710 | 367e86e8 | bellard | default:
|
| 1711 | 1a9353d2 | bellard | goto illegal_op;
|
| 1712 | 367e86e8 | bellard | } |
| 1713 | 367e86e8 | bellard | break;
|
| 1714 | 367e86e8 | bellard | |
| 1715 | 367e86e8 | bellard | case 0x84: /* test Ev, Gv */ |
| 1716 | 367e86e8 | bellard | case 0x85: |
| 1717 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1718 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1719 | 367e86e8 | bellard | else
|
| 1720 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1721 | 367e86e8 | bellard | |
| 1722 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1723 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1724 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1725 | 367e86e8 | bellard | reg = (modrm >> 3) & 7; |
| 1726 | 367e86e8 | bellard | |
| 1727 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
|
| 1728 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][1][reg + OR_EAX]();
|
| 1729 | 367e86e8 | bellard | gen_op_testl_T0_T1_cc(); |
| 1730 | 367e86e8 | bellard | s->cc_op = CC_OP_LOGICB + ot; |
| 1731 | 367e86e8 | bellard | break;
|
| 1732 | 367e86e8 | bellard | |
| 1733 | 367e86e8 | bellard | case 0xa8: /* test eAX, Iv */ |
| 1734 | 367e86e8 | bellard | case 0xa9: |
| 1735 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1736 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1737 | 367e86e8 | bellard | else
|
| 1738 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1739 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1740 | 367e86e8 | bellard | |
| 1741 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][OR_EAX]();
|
| 1742 | ba1c6e37 | bellard | gen_op_movl_T1_im(val); |
| 1743 | 367e86e8 | bellard | gen_op_testl_T0_T1_cc(); |
| 1744 | 367e86e8 | bellard | s->cc_op = CC_OP_LOGICB + ot; |
| 1745 | 367e86e8 | bellard | break;
|
| 1746 | 367e86e8 | bellard | |
| 1747 | 367e86e8 | bellard | case 0x98: /* CWDE/CBW */ |
| 1748 | 367e86e8 | bellard | if (dflag)
|
| 1749 | 367e86e8 | bellard | gen_op_movswl_EAX_AX(); |
| 1750 | 367e86e8 | bellard | else
|
| 1751 | 367e86e8 | bellard | gen_op_movsbw_AX_AL(); |
| 1752 | 367e86e8 | bellard | break;
|
| 1753 | 367e86e8 | bellard | case 0x99: /* CDQ/CWD */ |
| 1754 | 367e86e8 | bellard | if (dflag)
|
| 1755 | 367e86e8 | bellard | gen_op_movslq_EDX_EAX(); |
| 1756 | 367e86e8 | bellard | else
|
| 1757 | 367e86e8 | bellard | gen_op_movswl_DX_AX(); |
| 1758 | 367e86e8 | bellard | break;
|
| 1759 | 367e86e8 | bellard | case 0x1af: /* imul Gv, Ev */ |
| 1760 | 367e86e8 | bellard | case 0x69: /* imul Gv, Ev, I */ |
| 1761 | 367e86e8 | bellard | case 0x6b: |
| 1762 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1763 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1764 | 367e86e8 | bellard | reg = ((modrm >> 3) & 7) + OR_EAX; |
| 1765 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
|
| 1766 | 367e86e8 | bellard | if (b == 0x69) { |
| 1767 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1768 | ba1c6e37 | bellard | gen_op_movl_T1_im(val); |
| 1769 | 367e86e8 | bellard | } else if (b == 0x6b) { |
| 1770 | 367e86e8 | bellard | val = insn_get(s, OT_BYTE); |
| 1771 | ba1c6e37 | bellard | gen_op_movl_T1_im(val); |
| 1772 | 367e86e8 | bellard | } else {
|
| 1773 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][1][reg]();
|
| 1774 | 367e86e8 | bellard | } |
| 1775 | 367e86e8 | bellard | |
| 1776 | 367e86e8 | bellard | if (ot == OT_LONG) {
|
| 1777 | 4b74fe1f | bellard | gen_op_imull_T0_T1(); |
| 1778 | 367e86e8 | bellard | } else {
|
| 1779 | 4b74fe1f | bellard | gen_op_imulw_T0_T1(); |
| 1780 | 367e86e8 | bellard | } |
| 1781 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 1782 | 0ecfa993 | bellard | s->cc_op = CC_OP_MUL; |
| 1783 | 367e86e8 | bellard | break;
|
| 1784 | 1a9353d2 | bellard | case 0x1c0: |
| 1785 | 1a9353d2 | bellard | case 0x1c1: /* xadd Ev, Gv */ |
| 1786 | 1a9353d2 | bellard | if ((b & 1) == 0) |
| 1787 | 1a9353d2 | bellard | ot = OT_BYTE; |
| 1788 | 1a9353d2 | bellard | else
|
| 1789 | 1a9353d2 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1790 | 1a9353d2 | bellard | modrm = ldub(s->pc++); |
| 1791 | 1a9353d2 | bellard | reg = (modrm >> 3) & 7; |
| 1792 | 1a9353d2 | bellard | mod = (modrm >> 6) & 3; |
| 1793 | 1a9353d2 | bellard | if (mod == 3) { |
| 1794 | 1a9353d2 | bellard | rm = modrm & 7;
|
| 1795 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 1796 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][1][rm]();
|
| 1797 | 1a9353d2 | bellard | gen_op_addl_T0_T1_cc(); |
| 1798 | 1a9353d2 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1799 | 1a9353d2 | bellard | gen_op_mov_reg_T1[ot][reg](); |
| 1800 | 1a9353d2 | bellard | } else {
|
| 1801 | 1a9353d2 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1802 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 1803 | 1a9353d2 | bellard | gen_op_ld_T1_A0[ot](); |
| 1804 | 1a9353d2 | bellard | gen_op_addl_T0_T1_cc(); |
| 1805 | 1a9353d2 | bellard | gen_op_st_T0_A0[ot](); |
| 1806 | 1a9353d2 | bellard | gen_op_mov_reg_T1[ot][reg](); |
| 1807 | 1a9353d2 | bellard | } |
| 1808 | 1a9353d2 | bellard | s->cc_op = CC_OP_ADDB + ot; |
| 1809 | 1a9353d2 | bellard | break;
|
| 1810 | 1a9353d2 | bellard | case 0x1b0: |
| 1811 | 1a9353d2 | bellard | case 0x1b1: /* cmpxchg Ev, Gv */ |
| 1812 | 1a9353d2 | bellard | if ((b & 1) == 0) |
| 1813 | 1a9353d2 | bellard | ot = OT_BYTE; |
| 1814 | 1a9353d2 | bellard | else
|
| 1815 | 1a9353d2 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1816 | 1a9353d2 | bellard | modrm = ldub(s->pc++); |
| 1817 | 1a9353d2 | bellard | reg = (modrm >> 3) & 7; |
| 1818 | 1a9353d2 | bellard | mod = (modrm >> 6) & 3; |
| 1819 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][1][reg]();
|
| 1820 | 1a9353d2 | bellard | if (mod == 3) { |
| 1821 | 1a9353d2 | bellard | rm = modrm & 7;
|
| 1822 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 1823 | 1a9353d2 | bellard | gen_op_cmpxchg_T0_T1_EAX_cc[ot](); |
| 1824 | 1a9353d2 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 1825 | 1a9353d2 | bellard | } else {
|
| 1826 | 1a9353d2 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1827 | 1a9353d2 | bellard | gen_op_ld_T0_A0[ot](); |
| 1828 | 1a9353d2 | bellard | gen_op_cmpxchg_T0_T1_EAX_cc[ot](); |
| 1829 | 1a9353d2 | bellard | gen_op_st_T0_A0[ot](); |
| 1830 | 1a9353d2 | bellard | } |
| 1831 | 1a9353d2 | bellard | s->cc_op = CC_OP_SUBB + ot; |
| 1832 | 1a9353d2 | bellard | break;
|
| 1833 | 367e86e8 | bellard | |
| 1834 | 367e86e8 | bellard | /**************************/
|
| 1835 | 367e86e8 | bellard | /* push/pop */
|
| 1836 | 367e86e8 | bellard | case 0x50 ... 0x57: /* push */ |
| 1837 | 927f621e | bellard | gen_op_mov_TN_reg[OT_LONG][0][b & 7](); |
| 1838 | dab2ed99 | bellard | gen_push_T0(s); |
| 1839 | 367e86e8 | bellard | break;
|
| 1840 | 367e86e8 | bellard | case 0x58 ... 0x5f: /* pop */ |
| 1841 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1842 | dab2ed99 | bellard | gen_pop_T0(s); |
| 1843 | dab2ed99 | bellard | gen_op_mov_reg_T0[ot][b & 7]();
|
| 1844 | dab2ed99 | bellard | gen_pop_update(s); |
| 1845 | 367e86e8 | bellard | break;
|
| 1846 | 27362c82 | bellard | case 0x60: /* pusha */ |
| 1847 | dab2ed99 | bellard | gen_pusha(s); |
| 1848 | 27362c82 | bellard | break;
|
| 1849 | 27362c82 | bellard | case 0x61: /* popa */ |
| 1850 | dab2ed99 | bellard | gen_popa(s); |
| 1851 | 27362c82 | bellard | break;
|
| 1852 | 367e86e8 | bellard | case 0x68: /* push Iv */ |
| 1853 | 367e86e8 | bellard | case 0x6a: |
| 1854 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1855 | 367e86e8 | bellard | if (b == 0x68) |
| 1856 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1857 | 367e86e8 | bellard | else
|
| 1858 | 367e86e8 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 1859 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 1860 | dab2ed99 | bellard | gen_push_T0(s); |
| 1861 | 367e86e8 | bellard | break;
|
| 1862 | 367e86e8 | bellard | case 0x8f: /* pop Ev */ |
| 1863 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1864 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1865 | dab2ed99 | bellard | gen_pop_T0(s); |
| 1866 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 1);
|
| 1867 | dab2ed99 | bellard | gen_pop_update(s); |
| 1868 | 367e86e8 | bellard | break;
|
| 1869 | 27362c82 | bellard | case 0xc8: /* enter */ |
| 1870 | 27362c82 | bellard | {
|
| 1871 | 27362c82 | bellard | int level;
|
| 1872 | 27362c82 | bellard | val = lduw(s->pc); |
| 1873 | 27362c82 | bellard | s->pc += 2;
|
| 1874 | 27362c82 | bellard | level = ldub(s->pc++); |
| 1875 | dab2ed99 | bellard | gen_enter(s, val, level); |
| 1876 | 27362c82 | bellard | } |
| 1877 | 27362c82 | bellard | break;
|
| 1878 | 367e86e8 | bellard | case 0xc9: /* leave */ |
| 1879 | dab2ed99 | bellard | /* XXX: exception not precise (ESP is update before potential exception) */
|
| 1880 | dab2ed99 | bellard | if (s->ss32) {
|
| 1881 | dab2ed99 | bellard | gen_op_mov_TN_reg[OT_LONG][0][R_EBP]();
|
| 1882 | dab2ed99 | bellard | gen_op_mov_reg_T0[OT_LONG][R_ESP](); |
| 1883 | dab2ed99 | bellard | } else {
|
| 1884 | dab2ed99 | bellard | gen_op_mov_TN_reg[OT_WORD][0][R_EBP]();
|
| 1885 | dab2ed99 | bellard | gen_op_mov_reg_T0[OT_WORD][R_ESP](); |
| 1886 | dab2ed99 | bellard | } |
| 1887 | dab2ed99 | bellard | gen_pop_T0(s); |
| 1888 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1889 | dab2ed99 | bellard | gen_op_mov_reg_T0[ot][R_EBP](); |
| 1890 | dab2ed99 | bellard | gen_pop_update(s); |
| 1891 | 367e86e8 | bellard | break;
|
| 1892 | 6dbad63e | bellard | case 0x06: /* push es */ |
| 1893 | 6dbad63e | bellard | case 0x0e: /* push cs */ |
| 1894 | 6dbad63e | bellard | case 0x16: /* push ss */ |
| 1895 | 6dbad63e | bellard | case 0x1e: /* push ds */ |
| 1896 | 6dbad63e | bellard | gen_op_movl_T0_seg(b >> 3);
|
| 1897 | dab2ed99 | bellard | gen_push_T0(s); |
| 1898 | 6dbad63e | bellard | break;
|
| 1899 | 6dbad63e | bellard | case 0x1a0: /* push fs */ |
| 1900 | 6dbad63e | bellard | case 0x1a8: /* push gs */ |
| 1901 | 6dbad63e | bellard | gen_op_movl_T0_seg(((b >> 3) & 7) + R_FS); |
| 1902 | dab2ed99 | bellard | gen_push_T0(s); |
| 1903 | 6dbad63e | bellard | break;
|
| 1904 | 6dbad63e | bellard | case 0x07: /* pop es */ |
| 1905 | 6dbad63e | bellard | case 0x17: /* pop ss */ |
| 1906 | 6dbad63e | bellard | case 0x1f: /* pop ds */ |
| 1907 | dab2ed99 | bellard | gen_pop_T0(s); |
| 1908 | 6dbad63e | bellard | gen_movl_seg_T0(s, b >> 3);
|
| 1909 | dab2ed99 | bellard | gen_pop_update(s); |
| 1910 | 6dbad63e | bellard | break;
|
| 1911 | 6dbad63e | bellard | case 0x1a1: /* pop fs */ |
| 1912 | 6dbad63e | bellard | case 0x1a9: /* pop gs */ |
| 1913 | dab2ed99 | bellard | gen_pop_T0(s); |
| 1914 | 6dbad63e | bellard | gen_movl_seg_T0(s, ((b >> 3) & 7) + R_FS); |
| 1915 | dab2ed99 | bellard | gen_pop_update(s); |
| 1916 | 6dbad63e | bellard | break;
|
| 1917 | 6dbad63e | bellard | |
| 1918 | 367e86e8 | bellard | /**************************/
|
| 1919 | 367e86e8 | bellard | /* mov */
|
| 1920 | 367e86e8 | bellard | case 0x88: |
| 1921 | 367e86e8 | bellard | case 0x89: /* mov Gv, Ev */ |
| 1922 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1923 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1924 | 367e86e8 | bellard | else
|
| 1925 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1926 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1927 | 367e86e8 | bellard | reg = (modrm >> 3) & 7; |
| 1928 | 367e86e8 | bellard | |
| 1929 | 367e86e8 | bellard | /* generate a generic store */
|
| 1930 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, ot, OR_EAX + reg, 1);
|
| 1931 | 367e86e8 | bellard | break;
|
| 1932 | 367e86e8 | bellard | case 0xc6: |
| 1933 | 367e86e8 | bellard | case 0xc7: /* mov Ev, Iv */ |
| 1934 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1935 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1936 | 367e86e8 | bellard | else
|
| 1937 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1938 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1939 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1940 | 0ecfa993 | bellard | if (mod != 3) |
| 1941 | 0ecfa993 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 1942 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 1943 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 1944 | 0ecfa993 | bellard | if (mod != 3) |
| 1945 | 0ecfa993 | bellard | gen_op_st_T0_A0[ot](); |
| 1946 | 0ecfa993 | bellard | else
|
| 1947 | 0ecfa993 | bellard | gen_op_mov_reg_T0[ot][modrm & 7]();
|
| 1948 | 367e86e8 | bellard | break;
|
| 1949 | 367e86e8 | bellard | case 0x8a: |
| 1950 | 367e86e8 | bellard | case 0x8b: /* mov Ev, Gv */ |
| 1951 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 1952 | 367e86e8 | bellard | ot = OT_BYTE; |
| 1953 | 367e86e8 | bellard | else
|
| 1954 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1955 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1956 | 367e86e8 | bellard | reg = (modrm >> 3) & 7; |
| 1957 | 367e86e8 | bellard | |
| 1958 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
|
| 1959 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 1960 | 367e86e8 | bellard | break;
|
| 1961 | 6dbad63e | bellard | case 0x8e: /* mov seg, Gv */ |
| 1962 | 6dbad63e | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1963 | 6dbad63e | bellard | modrm = ldub(s->pc++); |
| 1964 | 6dbad63e | bellard | reg = (modrm >> 3) & 7; |
| 1965 | 6dbad63e | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
|
| 1966 | dab2ed99 | bellard | if (reg >= 6 || reg == R_CS) |
| 1967 | 6dbad63e | bellard | goto illegal_op;
|
| 1968 | 6dbad63e | bellard | gen_movl_seg_T0(s, reg); |
| 1969 | 6dbad63e | bellard | break;
|
| 1970 | 6dbad63e | bellard | case 0x8c: /* mov Gv, seg */ |
| 1971 | 6dbad63e | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1972 | 6dbad63e | bellard | modrm = ldub(s->pc++); |
| 1973 | 6dbad63e | bellard | reg = (modrm >> 3) & 7; |
| 1974 | 6dbad63e | bellard | if (reg >= 6) |
| 1975 | 6dbad63e | bellard | goto illegal_op;
|
| 1976 | 6dbad63e | bellard | gen_op_movl_T0_seg(reg); |
| 1977 | 6dbad63e | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 1);
|
| 1978 | 6dbad63e | bellard | break;
|
| 1979 | 367e86e8 | bellard | |
| 1980 | 367e86e8 | bellard | case 0x1b6: /* movzbS Gv, Eb */ |
| 1981 | 367e86e8 | bellard | case 0x1b7: /* movzwS Gv, Eb */ |
| 1982 | 367e86e8 | bellard | case 0x1be: /* movsbS Gv, Eb */ |
| 1983 | 367e86e8 | bellard | case 0x1bf: /* movswS Gv, Eb */ |
| 1984 | 367e86e8 | bellard | {
|
| 1985 | 367e86e8 | bellard | int d_ot;
|
| 1986 | 367e86e8 | bellard | /* d_ot is the size of destination */
|
| 1987 | 367e86e8 | bellard | d_ot = dflag + OT_WORD; |
| 1988 | 367e86e8 | bellard | /* ot is the size of source */
|
| 1989 | 367e86e8 | bellard | ot = (b & 1) + OT_BYTE;
|
| 1990 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 1991 | 367e86e8 | bellard | reg = ((modrm >> 3) & 7) + OR_EAX; |
| 1992 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 1993 | 367e86e8 | bellard | rm = modrm & 7;
|
| 1994 | 367e86e8 | bellard | |
| 1995 | 367e86e8 | bellard | if (mod == 3) { |
| 1996 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 1997 | 367e86e8 | bellard | switch(ot | (b & 8)) { |
| 1998 | 367e86e8 | bellard | case OT_BYTE:
|
| 1999 | 367e86e8 | bellard | gen_op_movzbl_T0_T0(); |
| 2000 | 367e86e8 | bellard | break;
|
| 2001 | 367e86e8 | bellard | case OT_BYTE | 8: |
| 2002 | 367e86e8 | bellard | gen_op_movsbl_T0_T0(); |
| 2003 | 367e86e8 | bellard | break;
|
| 2004 | 367e86e8 | bellard | case OT_WORD:
|
| 2005 | 367e86e8 | bellard | gen_op_movzwl_T0_T0(); |
| 2006 | 367e86e8 | bellard | break;
|
| 2007 | 367e86e8 | bellard | default:
|
| 2008 | 367e86e8 | bellard | case OT_WORD | 8: |
| 2009 | 367e86e8 | bellard | gen_op_movswl_T0_T0(); |
| 2010 | 367e86e8 | bellard | break;
|
| 2011 | 367e86e8 | bellard | } |
| 2012 | 367e86e8 | bellard | gen_op_mov_reg_T0[d_ot][reg](); |
| 2013 | 367e86e8 | bellard | } else {
|
| 2014 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2015 | 367e86e8 | bellard | if (b & 8) { |
| 2016 | 367e86e8 | bellard | gen_op_lds_T0_A0[ot](); |
| 2017 | 367e86e8 | bellard | } else {
|
| 2018 | 367e86e8 | bellard | gen_op_ldu_T0_A0[ot](); |
| 2019 | 367e86e8 | bellard | } |
| 2020 | 367e86e8 | bellard | gen_op_mov_reg_T0[d_ot][reg](); |
| 2021 | 367e86e8 | bellard | } |
| 2022 | 367e86e8 | bellard | } |
| 2023 | 367e86e8 | bellard | break;
|
| 2024 | 367e86e8 | bellard | |
| 2025 | 367e86e8 | bellard | case 0x8d: /* lea */ |
| 2026 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2027 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 2028 | 367e86e8 | bellard | reg = (modrm >> 3) & 7; |
| 2029 | 6dbad63e | bellard | /* we must ensure that no segment is added */
|
| 2030 | 6dbad63e | bellard | s->prefix &= ~(PREFIX_CS | PREFIX_SS | PREFIX_DS | |
| 2031 | 6dbad63e | bellard | PREFIX_ES | PREFIX_FS | PREFIX_GS); |
| 2032 | 6dbad63e | bellard | val = s->addseg; |
| 2033 | 6dbad63e | bellard | s->addseg = 0;
|
| 2034 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2035 | 6dbad63e | bellard | s->addseg = val; |
| 2036 | 367e86e8 | bellard | gen_op_mov_reg_A0[ot - OT_WORD][reg](); |
| 2037 | 367e86e8 | bellard | break;
|
| 2038 | 367e86e8 | bellard | |
| 2039 | 367e86e8 | bellard | case 0xa0: /* mov EAX, Ov */ |
| 2040 | 367e86e8 | bellard | case 0xa1: |
| 2041 | 367e86e8 | bellard | case 0xa2: /* mov Ov, EAX */ |
| 2042 | 367e86e8 | bellard | case 0xa3: |
| 2043 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2044 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2045 | 367e86e8 | bellard | else
|
| 2046 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2047 | 367e86e8 | bellard | if (s->aflag)
|
| 2048 | 367e86e8 | bellard | offset_addr = insn_get(s, OT_LONG); |
| 2049 | 367e86e8 | bellard | else
|
| 2050 | 367e86e8 | bellard | offset_addr = insn_get(s, OT_WORD); |
| 2051 | 4b74fe1f | bellard | gen_op_movl_A0_im(offset_addr); |
| 2052 | 1a9353d2 | bellard | /* handle override */
|
| 2053 | 1a9353d2 | bellard | /* XXX: factorize that */
|
| 2054 | 1a9353d2 | bellard | {
|
| 2055 | 1a9353d2 | bellard | int override, must_add_seg;
|
| 2056 | 1a9353d2 | bellard | override = R_DS; |
| 2057 | 1a9353d2 | bellard | must_add_seg = s->addseg; |
| 2058 | 1a9353d2 | bellard | if (s->prefix & (PREFIX_CS | PREFIX_SS | PREFIX_DS |
|
| 2059 | 1a9353d2 | bellard | PREFIX_ES | PREFIX_FS | PREFIX_GS)) {
|
| 2060 | 1a9353d2 | bellard | if (s->prefix & PREFIX_ES)
|
| 2061 | 1a9353d2 | bellard | override = R_ES; |
| 2062 | 1a9353d2 | bellard | else if (s->prefix & PREFIX_CS) |
| 2063 | 1a9353d2 | bellard | override = R_CS; |
| 2064 | 1a9353d2 | bellard | else if (s->prefix & PREFIX_SS) |
| 2065 | 1a9353d2 | bellard | override = R_SS; |
| 2066 | 1a9353d2 | bellard | else if (s->prefix & PREFIX_DS) |
| 2067 | 1a9353d2 | bellard | override = R_DS; |
| 2068 | 1a9353d2 | bellard | else if (s->prefix & PREFIX_FS) |
| 2069 | 1a9353d2 | bellard | override = R_FS; |
| 2070 | 1a9353d2 | bellard | else
|
| 2071 | 1a9353d2 | bellard | override = R_GS; |
| 2072 | 1a9353d2 | bellard | must_add_seg = 1;
|
| 2073 | 1a9353d2 | bellard | } |
| 2074 | 1a9353d2 | bellard | if (must_add_seg) {
|
| 2075 | 1a9353d2 | bellard | gen_op_addl_A0_seg(offsetof(CPUX86State,seg_cache[override].base)); |
| 2076 | 1a9353d2 | bellard | } |
| 2077 | 1a9353d2 | bellard | } |
| 2078 | 367e86e8 | bellard | if ((b & 2) == 0) { |
| 2079 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 2080 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][R_EAX](); |
| 2081 | 367e86e8 | bellard | } else {
|
| 2082 | 367e86e8 | bellard | gen_op_mov_TN_reg[ot][0][R_EAX]();
|
| 2083 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 2084 | 367e86e8 | bellard | } |
| 2085 | 367e86e8 | bellard | break;
|
| 2086 | 367e86e8 | bellard | |
| 2087 | 367e86e8 | bellard | case 0xb0 ... 0xb7: /* mov R, Ib */ |
| 2088 | 367e86e8 | bellard | val = insn_get(s, OT_BYTE); |
| 2089 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 2090 | 367e86e8 | bellard | gen_op_mov_reg_T0[OT_BYTE][b & 7]();
|
| 2091 | 367e86e8 | bellard | break;
|
| 2092 | 367e86e8 | bellard | case 0xb8 ... 0xbf: /* mov R, Iv */ |
| 2093 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2094 | 367e86e8 | bellard | val = insn_get(s, ot); |
| 2095 | 367e86e8 | bellard | reg = OR_EAX + (b & 7);
|
| 2096 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 2097 | 367e86e8 | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 2098 | 367e86e8 | bellard | break;
|
| 2099 | 367e86e8 | bellard | |
| 2100 | 367e86e8 | bellard | case 0x91 ... 0x97: /* xchg R, EAX */ |
| 2101 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2102 | 367e86e8 | bellard | reg = b & 7;
|
| 2103 | 1a9353d2 | bellard | rm = R_EAX; |
| 2104 | 1a9353d2 | bellard | goto do_xchg_reg;
|
| 2105 | 367e86e8 | bellard | case 0x86: |
| 2106 | 367e86e8 | bellard | case 0x87: /* xchg Ev, Gv */ |
| 2107 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2108 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2109 | 367e86e8 | bellard | else
|
| 2110 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2111 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 2112 | 367e86e8 | bellard | reg = (modrm >> 3) & 7; |
| 2113 | 1a9353d2 | bellard | mod = (modrm >> 6) & 3; |
| 2114 | 1a9353d2 | bellard | if (mod == 3) { |
| 2115 | 1a9353d2 | bellard | rm = modrm & 7;
|
| 2116 | 1a9353d2 | bellard | do_xchg_reg:
|
| 2117 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 2118 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][1][rm]();
|
| 2119 | 1a9353d2 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 2120 | 1a9353d2 | bellard | gen_op_mov_reg_T1[ot][reg](); |
| 2121 | 1a9353d2 | bellard | } else {
|
| 2122 | 1a9353d2 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2123 | 1a9353d2 | bellard | gen_op_mov_TN_reg[ot][0][reg]();
|
| 2124 | 1a9353d2 | bellard | gen_op_ld_T1_A0[ot](); |
| 2125 | 1a9353d2 | bellard | gen_op_st_T0_A0[ot](); |
| 2126 | 1a9353d2 | bellard | gen_op_mov_reg_T1[ot][reg](); |
| 2127 | 1a9353d2 | bellard | } |
| 2128 | 367e86e8 | bellard | break;
|
| 2129 | 6dbad63e | bellard | case 0xc4: /* les Gv */ |
| 2130 | 6dbad63e | bellard | op = R_ES; |
| 2131 | 6dbad63e | bellard | goto do_lxx;
|
| 2132 | 6dbad63e | bellard | case 0xc5: /* lds Gv */ |
| 2133 | 6dbad63e | bellard | op = R_DS; |
| 2134 | 6dbad63e | bellard | goto do_lxx;
|
| 2135 | 6dbad63e | bellard | case 0x1b2: /* lss Gv */ |
| 2136 | 6dbad63e | bellard | op = R_SS; |
| 2137 | 6dbad63e | bellard | goto do_lxx;
|
| 2138 | 6dbad63e | bellard | case 0x1b4: /* lfs Gv */ |
| 2139 | 6dbad63e | bellard | op = R_FS; |
| 2140 | 6dbad63e | bellard | goto do_lxx;
|
| 2141 | 6dbad63e | bellard | case 0x1b5: /* lgs Gv */ |
| 2142 | 6dbad63e | bellard | op = R_GS; |
| 2143 | 6dbad63e | bellard | do_lxx:
|
| 2144 | 6dbad63e | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2145 | 6dbad63e | bellard | modrm = ldub(s->pc++); |
| 2146 | 6dbad63e | bellard | reg = (modrm >> 3) & 7; |
| 2147 | 6dbad63e | bellard | mod = (modrm >> 6) & 3; |
| 2148 | 6dbad63e | bellard | if (mod == 3) |
| 2149 | 6dbad63e | bellard | goto illegal_op;
|
| 2150 | 6dbad63e | bellard | gen_op_ld_T1_A0[ot](); |
| 2151 | dc99065b | bellard | gen_op_addl_A0_im(1 << (ot - OT_WORD + 1)); |
| 2152 | 6dbad63e | bellard | /* load the segment first to handle exceptions properly */
|
| 2153 | 6dbad63e | bellard | gen_op_lduw_T0_A0(); |
| 2154 | 6dbad63e | bellard | gen_movl_seg_T0(s, op); |
| 2155 | 6dbad63e | bellard | /* then put the data */
|
| 2156 | 6dbad63e | bellard | gen_op_mov_reg_T1[ot][reg](); |
| 2157 | 6dbad63e | bellard | break;
|
| 2158 | 367e86e8 | bellard | |
| 2159 | 367e86e8 | bellard | /************************/
|
| 2160 | 367e86e8 | bellard | /* shifts */
|
| 2161 | 367e86e8 | bellard | case 0xc0: |
| 2162 | 367e86e8 | bellard | case 0xc1: |
| 2163 | 367e86e8 | bellard | /* shift Ev,Ib */
|
| 2164 | 367e86e8 | bellard | shift = 2;
|
| 2165 | 367e86e8 | bellard | grp2:
|
| 2166 | 367e86e8 | bellard | {
|
| 2167 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2168 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2169 | 367e86e8 | bellard | else
|
| 2170 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2171 | 367e86e8 | bellard | |
| 2172 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 2173 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 2174 | 367e86e8 | bellard | rm = modrm & 7;
|
| 2175 | 367e86e8 | bellard | op = (modrm >> 3) & 7; |
| 2176 | 367e86e8 | bellard | |
| 2177 | 367e86e8 | bellard | if (mod != 3) { |
| 2178 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2179 | 367e86e8 | bellard | gen_op_ld_T0_A0[ot](); |
| 2180 | 367e86e8 | bellard | opreg = OR_TMP0; |
| 2181 | 367e86e8 | bellard | } else {
|
| 2182 | 367e86e8 | bellard | opreg = rm + OR_EAX; |
| 2183 | 367e86e8 | bellard | } |
| 2184 | 367e86e8 | bellard | |
| 2185 | 367e86e8 | bellard | /* simpler op */
|
| 2186 | 367e86e8 | bellard | if (shift == 0) { |
| 2187 | 367e86e8 | bellard | gen_shift(s, op, ot, opreg, OR_ECX); |
| 2188 | 367e86e8 | bellard | } else {
|
| 2189 | 367e86e8 | bellard | if (shift == 2) { |
| 2190 | 367e86e8 | bellard | shift = ldub(s->pc++); |
| 2191 | 367e86e8 | bellard | } |
| 2192 | 367e86e8 | bellard | gen_shifti(s, op, ot, opreg, shift); |
| 2193 | 367e86e8 | bellard | } |
| 2194 | 367e86e8 | bellard | |
| 2195 | 367e86e8 | bellard | if (mod != 3) { |
| 2196 | 367e86e8 | bellard | gen_op_st_T0_A0[ot](); |
| 2197 | 367e86e8 | bellard | } |
| 2198 | 367e86e8 | bellard | } |
| 2199 | 367e86e8 | bellard | break;
|
| 2200 | 367e86e8 | bellard | case 0xd0: |
| 2201 | 367e86e8 | bellard | case 0xd1: |
| 2202 | 367e86e8 | bellard | /* shift Ev,1 */
|
| 2203 | 367e86e8 | bellard | shift = 1;
|
| 2204 | 367e86e8 | bellard | goto grp2;
|
| 2205 | 367e86e8 | bellard | case 0xd2: |
| 2206 | 367e86e8 | bellard | case 0xd3: |
| 2207 | 367e86e8 | bellard | /* shift Ev,cl */
|
| 2208 | 367e86e8 | bellard | shift = 0;
|
| 2209 | 367e86e8 | bellard | goto grp2;
|
| 2210 | 367e86e8 | bellard | |
| 2211 | d57c4e01 | bellard | case 0x1a4: /* shld imm */ |
| 2212 | d57c4e01 | bellard | op = 0;
|
| 2213 | d57c4e01 | bellard | shift = 1;
|
| 2214 | d57c4e01 | bellard | goto do_shiftd;
|
| 2215 | d57c4e01 | bellard | case 0x1a5: /* shld cl */ |
| 2216 | d57c4e01 | bellard | op = 0;
|
| 2217 | d57c4e01 | bellard | shift = 0;
|
| 2218 | d57c4e01 | bellard | goto do_shiftd;
|
| 2219 | d57c4e01 | bellard | case 0x1ac: /* shrd imm */ |
| 2220 | d57c4e01 | bellard | op = 1;
|
| 2221 | d57c4e01 | bellard | shift = 1;
|
| 2222 | d57c4e01 | bellard | goto do_shiftd;
|
| 2223 | d57c4e01 | bellard | case 0x1ad: /* shrd cl */ |
| 2224 | d57c4e01 | bellard | op = 1;
|
| 2225 | d57c4e01 | bellard | shift = 0;
|
| 2226 | d57c4e01 | bellard | do_shiftd:
|
| 2227 | d57c4e01 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2228 | d57c4e01 | bellard | modrm = ldub(s->pc++); |
| 2229 | d57c4e01 | bellard | mod = (modrm >> 6) & 3; |
| 2230 | d57c4e01 | bellard | rm = modrm & 7;
|
| 2231 | d57c4e01 | bellard | reg = (modrm >> 3) & 7; |
| 2232 | d57c4e01 | bellard | |
| 2233 | d57c4e01 | bellard | if (mod != 3) { |
| 2234 | d57c4e01 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2235 | d57c4e01 | bellard | gen_op_ld_T0_A0[ot](); |
| 2236 | d57c4e01 | bellard | } else {
|
| 2237 | d57c4e01 | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 2238 | d57c4e01 | bellard | } |
| 2239 | d57c4e01 | bellard | gen_op_mov_TN_reg[ot][1][reg]();
|
| 2240 | d57c4e01 | bellard | |
| 2241 | d57c4e01 | bellard | if (shift) {
|
| 2242 | d57c4e01 | bellard | val = ldub(s->pc++); |
| 2243 | d57c4e01 | bellard | val &= 0x1f;
|
| 2244 | d57c4e01 | bellard | if (val) {
|
| 2245 | d57c4e01 | bellard | gen_op_shiftd_T0_T1_im_cc[ot - OT_WORD][op](val); |
| 2246 | d57c4e01 | bellard | if (op == 0 && ot != OT_WORD) |
| 2247 | d57c4e01 | bellard | s->cc_op = CC_OP_SHLB + ot; |
| 2248 | d57c4e01 | bellard | else
|
| 2249 | d57c4e01 | bellard | s->cc_op = CC_OP_SARB + ot; |
| 2250 | d57c4e01 | bellard | } |
| 2251 | d57c4e01 | bellard | } else {
|
| 2252 | d57c4e01 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2253 | d57c4e01 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2254 | d57c4e01 | bellard | gen_op_shiftd_T0_T1_ECX_cc[ot - OT_WORD][op](); |
| 2255 | d57c4e01 | bellard | s->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 2256 | d57c4e01 | bellard | } |
| 2257 | d57c4e01 | bellard | if (mod != 3) { |
| 2258 | d57c4e01 | bellard | gen_op_st_T0_A0[ot](); |
| 2259 | d57c4e01 | bellard | } else {
|
| 2260 | d57c4e01 | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 2261 | d57c4e01 | bellard | } |
| 2262 | d57c4e01 | bellard | break;
|
| 2263 | d57c4e01 | bellard | |
| 2264 | 367e86e8 | bellard | /************************/
|
| 2265 | 367e86e8 | bellard | /* floats */
|
| 2266 | 367e86e8 | bellard | case 0xd8 ... 0xdf: |
| 2267 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 2268 | 367e86e8 | bellard | mod = (modrm >> 6) & 3; |
| 2269 | 367e86e8 | bellard | rm = modrm & 7;
|
| 2270 | 367e86e8 | bellard | op = ((b & 7) << 3) | ((modrm >> 3) & 7); |
| 2271 | 367e86e8 | bellard | |
| 2272 | 367e86e8 | bellard | if (mod != 3) { |
| 2273 | 367e86e8 | bellard | /* memory op */
|
| 2274 | 367e86e8 | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2275 | 367e86e8 | bellard | switch(op) {
|
| 2276 | 367e86e8 | bellard | case 0x00 ... 0x07: /* fxxxs */ |
| 2277 | 367e86e8 | bellard | case 0x10 ... 0x17: /* fixxxl */ |
| 2278 | 367e86e8 | bellard | case 0x20 ... 0x27: /* fxxxl */ |
| 2279 | 367e86e8 | bellard | case 0x30 ... 0x37: /* fixxx */ |
| 2280 | 367e86e8 | bellard | {
|
| 2281 | 927f621e | bellard | int op1;
|
| 2282 | 927f621e | bellard | op1 = op & 7;
|
| 2283 | 367e86e8 | bellard | |
| 2284 | 367e86e8 | bellard | switch(op >> 4) { |
| 2285 | 367e86e8 | bellard | case 0: |
| 2286 | 927f621e | bellard | gen_op_flds_FT0_A0(); |
| 2287 | 367e86e8 | bellard | break;
|
| 2288 | 367e86e8 | bellard | case 1: |
| 2289 | 927f621e | bellard | gen_op_fildl_FT0_A0(); |
| 2290 | 367e86e8 | bellard | break;
|
| 2291 | 367e86e8 | bellard | case 2: |
| 2292 | 927f621e | bellard | gen_op_fldl_FT0_A0(); |
| 2293 | 367e86e8 | bellard | break;
|
| 2294 | 367e86e8 | bellard | case 3: |
| 2295 | 367e86e8 | bellard | default:
|
| 2296 | 927f621e | bellard | gen_op_fild_FT0_A0(); |
| 2297 | 367e86e8 | bellard | break;
|
| 2298 | 367e86e8 | bellard | } |
| 2299 | 367e86e8 | bellard | |
| 2300 | 927f621e | bellard | gen_op_fp_arith_ST0_FT0[op1](); |
| 2301 | 927f621e | bellard | if (op1 == 3) { |
| 2302 | 367e86e8 | bellard | /* fcomp needs pop */
|
| 2303 | 927f621e | bellard | gen_op_fpop(); |
| 2304 | 367e86e8 | bellard | } |
| 2305 | 367e86e8 | bellard | } |
| 2306 | 367e86e8 | bellard | break;
|
| 2307 | 367e86e8 | bellard | case 0x08: /* flds */ |
| 2308 | 367e86e8 | bellard | case 0x0a: /* fsts */ |
| 2309 | 367e86e8 | bellard | case 0x0b: /* fstps */ |
| 2310 | 367e86e8 | bellard | case 0x18: /* fildl */ |
| 2311 | 367e86e8 | bellard | case 0x1a: /* fistl */ |
| 2312 | 367e86e8 | bellard | case 0x1b: /* fistpl */ |
| 2313 | 367e86e8 | bellard | case 0x28: /* fldl */ |
| 2314 | 367e86e8 | bellard | case 0x2a: /* fstl */ |
| 2315 | 367e86e8 | bellard | case 0x2b: /* fstpl */ |
| 2316 | 367e86e8 | bellard | case 0x38: /* filds */ |
| 2317 | 367e86e8 | bellard | case 0x3a: /* fists */ |
| 2318 | 367e86e8 | bellard | case 0x3b: /* fistps */ |
| 2319 | 367e86e8 | bellard | |
| 2320 | 367e86e8 | bellard | switch(op & 7) { |
| 2321 | 367e86e8 | bellard | case 0: |
| 2322 | 927f621e | bellard | gen_op_fpush(); |
| 2323 | 927f621e | bellard | switch(op >> 4) { |
| 2324 | 927f621e | bellard | case 0: |
| 2325 | 927f621e | bellard | gen_op_flds_ST0_A0(); |
| 2326 | 927f621e | bellard | break;
|
| 2327 | 927f621e | bellard | case 1: |
| 2328 | 927f621e | bellard | gen_op_fildl_ST0_A0(); |
| 2329 | 927f621e | bellard | break;
|
| 2330 | 927f621e | bellard | case 2: |
| 2331 | 927f621e | bellard | gen_op_fldl_ST0_A0(); |
| 2332 | 927f621e | bellard | break;
|
| 2333 | 927f621e | bellard | case 3: |
| 2334 | 927f621e | bellard | default:
|
| 2335 | 927f621e | bellard | gen_op_fild_ST0_A0(); |
| 2336 | 927f621e | bellard | break;
|
| 2337 | 367e86e8 | bellard | } |
| 2338 | 367e86e8 | bellard | break;
|
| 2339 | 367e86e8 | bellard | default:
|
| 2340 | 927f621e | bellard | switch(op >> 4) { |
| 2341 | 927f621e | bellard | case 0: |
| 2342 | 927f621e | bellard | gen_op_fsts_ST0_A0(); |
| 2343 | 927f621e | bellard | break;
|
| 2344 | 927f621e | bellard | case 1: |
| 2345 | 927f621e | bellard | gen_op_fistl_ST0_A0(); |
| 2346 | 927f621e | bellard | break;
|
| 2347 | 927f621e | bellard | case 2: |
| 2348 | 927f621e | bellard | gen_op_fstl_ST0_A0(); |
| 2349 | 927f621e | bellard | break;
|
| 2350 | 927f621e | bellard | case 3: |
| 2351 | 927f621e | bellard | default:
|
| 2352 | 927f621e | bellard | gen_op_fist_ST0_A0(); |
| 2353 | 927f621e | bellard | break;
|
| 2354 | 367e86e8 | bellard | } |
| 2355 | 367e86e8 | bellard | if ((op & 7) == 3) |
| 2356 | 927f621e | bellard | gen_op_fpop(); |
| 2357 | 367e86e8 | bellard | break;
|
| 2358 | 367e86e8 | bellard | } |
| 2359 | 367e86e8 | bellard | break;
|
| 2360 | 4b74fe1f | bellard | case 0x0d: /* fldcw mem */ |
| 2361 | 4b74fe1f | bellard | gen_op_fldcw_A0(); |
| 2362 | 4b74fe1f | bellard | break;
|
| 2363 | 4b74fe1f | bellard | case 0x0f: /* fnstcw mem */ |
| 2364 | 4b74fe1f | bellard | gen_op_fnstcw_A0(); |
| 2365 | 4b74fe1f | bellard | break;
|
| 2366 | 77f8dd5a | bellard | case 0x1d: /* fldt mem */ |
| 2367 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2368 | 77f8dd5a | bellard | gen_op_fldt_ST0_A0(); |
| 2369 | 77f8dd5a | bellard | break;
|
| 2370 | 77f8dd5a | bellard | case 0x1f: /* fstpt mem */ |
| 2371 | 77f8dd5a | bellard | gen_op_fstt_ST0_A0(); |
| 2372 | 77f8dd5a | bellard | gen_op_fpop(); |
| 2373 | 77f8dd5a | bellard | break;
|
| 2374 | 367e86e8 | bellard | case 0x2f: /* fnstsw mem */ |
| 2375 | 4b74fe1f | bellard | gen_op_fnstsw_A0(); |
| 2376 | 367e86e8 | bellard | break;
|
| 2377 | 367e86e8 | bellard | case 0x3c: /* fbld */ |
| 2378 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2379 | 1017ebe9 | bellard | gen_op_fbld_ST0_A0(); |
| 2380 | 77f8dd5a | bellard | break;
|
| 2381 | 367e86e8 | bellard | case 0x3e: /* fbstp */ |
| 2382 | 77f8dd5a | bellard | gen_op_fbst_ST0_A0(); |
| 2383 | 77f8dd5a | bellard | gen_op_fpop(); |
| 2384 | 77f8dd5a | bellard | break;
|
| 2385 | 367e86e8 | bellard | case 0x3d: /* fildll */ |
| 2386 | 927f621e | bellard | gen_op_fpush(); |
| 2387 | 927f621e | bellard | gen_op_fildll_ST0_A0(); |
| 2388 | 367e86e8 | bellard | break;
|
| 2389 | 367e86e8 | bellard | case 0x3f: /* fistpll */ |
| 2390 | 927f621e | bellard | gen_op_fistll_ST0_A0(); |
| 2391 | 927f621e | bellard | gen_op_fpop(); |
| 2392 | 367e86e8 | bellard | break;
|
| 2393 | 367e86e8 | bellard | default:
|
| 2394 | 1a9353d2 | bellard | goto illegal_op;
|
| 2395 | 367e86e8 | bellard | } |
| 2396 | 367e86e8 | bellard | } else {
|
| 2397 | 367e86e8 | bellard | /* register float ops */
|
| 2398 | 927f621e | bellard | opreg = rm; |
| 2399 | 367e86e8 | bellard | |
| 2400 | 367e86e8 | bellard | switch(op) {
|
| 2401 | 367e86e8 | bellard | case 0x08: /* fld sti */ |
| 2402 | 927f621e | bellard | gen_op_fpush(); |
| 2403 | 927f621e | bellard | gen_op_fmov_ST0_STN((opreg + 1) & 7); |
| 2404 | 367e86e8 | bellard | break;
|
| 2405 | 367e86e8 | bellard | case 0x09: /* fxchg sti */ |
| 2406 | 77f8dd5a | bellard | gen_op_fxchg_ST0_STN(opreg); |
| 2407 | 367e86e8 | bellard | break;
|
| 2408 | 367e86e8 | bellard | case 0x0a: /* grp d9/2 */ |
| 2409 | 367e86e8 | bellard | switch(rm) {
|
| 2410 | 367e86e8 | bellard | case 0: /* fnop */ |
| 2411 | 367e86e8 | bellard | break;
|
| 2412 | 367e86e8 | bellard | default:
|
| 2413 | 1a9353d2 | bellard | goto illegal_op;
|
| 2414 | 367e86e8 | bellard | } |
| 2415 | 367e86e8 | bellard | break;
|
| 2416 | 367e86e8 | bellard | case 0x0c: /* grp d9/4 */ |
| 2417 | 367e86e8 | bellard | switch(rm) {
|
| 2418 | 367e86e8 | bellard | case 0: /* fchs */ |
| 2419 | 927f621e | bellard | gen_op_fchs_ST0(); |
| 2420 | 367e86e8 | bellard | break;
|
| 2421 | 367e86e8 | bellard | case 1: /* fabs */ |
| 2422 | 927f621e | bellard | gen_op_fabs_ST0(); |
| 2423 | 367e86e8 | bellard | break;
|
| 2424 | 367e86e8 | bellard | case 4: /* ftst */ |
| 2425 | 927f621e | bellard | gen_op_fldz_FT0(); |
| 2426 | 927f621e | bellard | gen_op_fcom_ST0_FT0(); |
| 2427 | 367e86e8 | bellard | break;
|
| 2428 | 367e86e8 | bellard | case 5: /* fxam */ |
| 2429 | 927f621e | bellard | gen_op_fxam_ST0(); |
| 2430 | 367e86e8 | bellard | break;
|
| 2431 | 367e86e8 | bellard | default:
|
| 2432 | 1a9353d2 | bellard | goto illegal_op;
|
| 2433 | 367e86e8 | bellard | } |
| 2434 | 367e86e8 | bellard | break;
|
| 2435 | 367e86e8 | bellard | case 0x0d: /* grp d9/5 */ |
| 2436 | 367e86e8 | bellard | {
|
| 2437 | 927f621e | bellard | switch(rm) {
|
| 2438 | 927f621e | bellard | case 0: |
| 2439 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2440 | 927f621e | bellard | gen_op_fld1_ST0(); |
| 2441 | 927f621e | bellard | break;
|
| 2442 | 927f621e | bellard | case 1: |
| 2443 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2444 | 77f8dd5a | bellard | gen_op_fldl2t_ST0(); |
| 2445 | 927f621e | bellard | break;
|
| 2446 | 927f621e | bellard | case 2: |
| 2447 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2448 | 77f8dd5a | bellard | gen_op_fldl2e_ST0(); |
| 2449 | 927f621e | bellard | break;
|
| 2450 | 927f621e | bellard | case 3: |
| 2451 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2452 | 927f621e | bellard | gen_op_fldpi_ST0(); |
| 2453 | 927f621e | bellard | break;
|
| 2454 | 927f621e | bellard | case 4: |
| 2455 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2456 | 927f621e | bellard | gen_op_fldlg2_ST0(); |
| 2457 | 927f621e | bellard | break;
|
| 2458 | 927f621e | bellard | case 5: |
| 2459 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2460 | 927f621e | bellard | gen_op_fldln2_ST0(); |
| 2461 | 927f621e | bellard | break;
|
| 2462 | 927f621e | bellard | case 6: |
| 2463 | 77f8dd5a | bellard | gen_op_fpush(); |
| 2464 | 927f621e | bellard | gen_op_fldz_ST0(); |
| 2465 | 927f621e | bellard | break;
|
| 2466 | 927f621e | bellard | default:
|
| 2467 | 1a9353d2 | bellard | goto illegal_op;
|
| 2468 | 367e86e8 | bellard | } |
| 2469 | 367e86e8 | bellard | } |
| 2470 | 367e86e8 | bellard | break;
|
| 2471 | 367e86e8 | bellard | case 0x0e: /* grp d9/6 */ |
| 2472 | 367e86e8 | bellard | switch(rm) {
|
| 2473 | 367e86e8 | bellard | case 0: /* f2xm1 */ |
| 2474 | 927f621e | bellard | gen_op_f2xm1(); |
| 2475 | 367e86e8 | bellard | break;
|
| 2476 | 367e86e8 | bellard | case 1: /* fyl2x */ |
| 2477 | 927f621e | bellard | gen_op_fyl2x(); |
| 2478 | 367e86e8 | bellard | break;
|
| 2479 | 367e86e8 | bellard | case 2: /* fptan */ |
| 2480 | 927f621e | bellard | gen_op_fptan(); |
| 2481 | 367e86e8 | bellard | break;
|
| 2482 | 367e86e8 | bellard | case 3: /* fpatan */ |
| 2483 | 927f621e | bellard | gen_op_fpatan(); |
| 2484 | 367e86e8 | bellard | break;
|
| 2485 | 367e86e8 | bellard | case 4: /* fxtract */ |
| 2486 | 927f621e | bellard | gen_op_fxtract(); |
| 2487 | 367e86e8 | bellard | break;
|
| 2488 | 367e86e8 | bellard | case 5: /* fprem1 */ |
| 2489 | 927f621e | bellard | gen_op_fprem1(); |
| 2490 | 367e86e8 | bellard | break;
|
| 2491 | 367e86e8 | bellard | case 6: /* fdecstp */ |
| 2492 | 927f621e | bellard | gen_op_fdecstp(); |
| 2493 | 367e86e8 | bellard | break;
|
| 2494 | 367e86e8 | bellard | default:
|
| 2495 | 927f621e | bellard | case 7: /* fincstp */ |
| 2496 | 927f621e | bellard | gen_op_fincstp(); |
| 2497 | 367e86e8 | bellard | break;
|
| 2498 | 367e86e8 | bellard | } |
| 2499 | 367e86e8 | bellard | break;
|
| 2500 | 367e86e8 | bellard | case 0x0f: /* grp d9/7 */ |
| 2501 | 367e86e8 | bellard | switch(rm) {
|
| 2502 | 367e86e8 | bellard | case 0: /* fprem */ |
| 2503 | 927f621e | bellard | gen_op_fprem(); |
| 2504 | 367e86e8 | bellard | break;
|
| 2505 | 367e86e8 | bellard | case 1: /* fyl2xp1 */ |
| 2506 | 927f621e | bellard | gen_op_fyl2xp1(); |
| 2507 | 927f621e | bellard | break;
|
| 2508 | 927f621e | bellard | case 2: /* fsqrt */ |
| 2509 | 927f621e | bellard | gen_op_fsqrt(); |
| 2510 | 367e86e8 | bellard | break;
|
| 2511 | 367e86e8 | bellard | case 3: /* fsincos */ |
| 2512 | 927f621e | bellard | gen_op_fsincos(); |
| 2513 | 367e86e8 | bellard | break;
|
| 2514 | 367e86e8 | bellard | case 5: /* fscale */ |
| 2515 | 927f621e | bellard | gen_op_fscale(); |
| 2516 | 367e86e8 | bellard | break;
|
| 2517 | 367e86e8 | bellard | case 4: /* frndint */ |
| 2518 | 927f621e | bellard | gen_op_frndint(); |
| 2519 | 927f621e | bellard | break;
|
| 2520 | 367e86e8 | bellard | case 6: /* fsin */ |
| 2521 | 927f621e | bellard | gen_op_fsin(); |
| 2522 | 927f621e | bellard | break;
|
| 2523 | 367e86e8 | bellard | default:
|
| 2524 | 367e86e8 | bellard | case 7: /* fcos */ |
| 2525 | 927f621e | bellard | gen_op_fcos(); |
| 2526 | 367e86e8 | bellard | break;
|
| 2527 | 367e86e8 | bellard | } |
| 2528 | 367e86e8 | bellard | break;
|
| 2529 | 367e86e8 | bellard | case 0x00: case 0x01: case 0x04 ... 0x07: /* fxxx st, sti */ |
| 2530 | 367e86e8 | bellard | case 0x20: case 0x21: case 0x24 ... 0x27: /* fxxx sti, st */ |
| 2531 | 367e86e8 | bellard | case 0x30: case 0x31: case 0x34 ... 0x37: /* fxxxp sti, st */ |
| 2532 | 367e86e8 | bellard | {
|
| 2533 | 927f621e | bellard | int op1;
|
| 2534 | 367e86e8 | bellard | |
| 2535 | 927f621e | bellard | op1 = op & 7;
|
| 2536 | 367e86e8 | bellard | if (op >= 0x20) { |
| 2537 | 927f621e | bellard | gen_op_fp_arith_STN_ST0[op1](opreg); |
| 2538 | 77f8dd5a | bellard | if (op >= 0x30) |
| 2539 | 77f8dd5a | bellard | gen_op_fpop(); |
| 2540 | 367e86e8 | bellard | } else {
|
| 2541 | 927f621e | bellard | gen_op_fmov_FT0_STN(opreg); |
| 2542 | 927f621e | bellard | gen_op_fp_arith_ST0_FT0[op1](); |
| 2543 | 367e86e8 | bellard | } |
| 2544 | 367e86e8 | bellard | } |
| 2545 | 367e86e8 | bellard | break;
|
| 2546 | 367e86e8 | bellard | case 0x02: /* fcom */ |
| 2547 | 927f621e | bellard | gen_op_fmov_FT0_STN(opreg); |
| 2548 | 927f621e | bellard | gen_op_fcom_ST0_FT0(); |
| 2549 | 367e86e8 | bellard | break;
|
| 2550 | 367e86e8 | bellard | case 0x03: /* fcomp */ |
| 2551 | 927f621e | bellard | gen_op_fmov_FT0_STN(opreg); |
| 2552 | 927f621e | bellard | gen_op_fcom_ST0_FT0(); |
| 2553 | 927f621e | bellard | gen_op_fpop(); |
| 2554 | 367e86e8 | bellard | break;
|
| 2555 | 367e86e8 | bellard | case 0x15: /* da/5 */ |
| 2556 | 367e86e8 | bellard | switch(rm) {
|
| 2557 | 367e86e8 | bellard | case 1: /* fucompp */ |
| 2558 | 927f621e | bellard | gen_op_fmov_FT0_STN(1);
|
| 2559 | 77f8dd5a | bellard | gen_op_fucom_ST0_FT0(); |
| 2560 | 927f621e | bellard | gen_op_fpop(); |
| 2561 | 927f621e | bellard | gen_op_fpop(); |
| 2562 | 367e86e8 | bellard | break;
|
| 2563 | 367e86e8 | bellard | default:
|
| 2564 | 1a9353d2 | bellard | goto illegal_op;
|
| 2565 | 1a9353d2 | bellard | } |
| 2566 | 1a9353d2 | bellard | break;
|
| 2567 | 1a9353d2 | bellard | case 0x1c: |
| 2568 | 1a9353d2 | bellard | switch(rm) {
|
| 2569 | 1a9353d2 | bellard | case 2: /* fclex */ |
| 2570 | 1a9353d2 | bellard | gen_op_fclex(); |
| 2571 | 1a9353d2 | bellard | break;
|
| 2572 | 1a9353d2 | bellard | case 3: /* fninit */ |
| 2573 | 1a9353d2 | bellard | gen_op_fninit(); |
| 2574 | 1a9353d2 | bellard | break;
|
| 2575 | 1a9353d2 | bellard | default:
|
| 2576 | 1a9353d2 | bellard | goto illegal_op;
|
| 2577 | 367e86e8 | bellard | } |
| 2578 | 367e86e8 | bellard | break;
|
| 2579 | 367e86e8 | bellard | case 0x2a: /* fst sti */ |
| 2580 | 927f621e | bellard | gen_op_fmov_STN_ST0(opreg); |
| 2581 | 367e86e8 | bellard | break;
|
| 2582 | 367e86e8 | bellard | case 0x2b: /* fstp sti */ |
| 2583 | 927f621e | bellard | gen_op_fmov_STN_ST0(opreg); |
| 2584 | 927f621e | bellard | gen_op_fpop(); |
| 2585 | 367e86e8 | bellard | break;
|
| 2586 | 77f8dd5a | bellard | case 0x2c: /* fucom st(i) */ |
| 2587 | 77f8dd5a | bellard | gen_op_fmov_FT0_STN(opreg); |
| 2588 | 77f8dd5a | bellard | gen_op_fucom_ST0_FT0(); |
| 2589 | 77f8dd5a | bellard | break;
|
| 2590 | 77f8dd5a | bellard | case 0x2d: /* fucomp st(i) */ |
| 2591 | 77f8dd5a | bellard | gen_op_fmov_FT0_STN(opreg); |
| 2592 | 77f8dd5a | bellard | gen_op_fucom_ST0_FT0(); |
| 2593 | 77f8dd5a | bellard | gen_op_fpop(); |
| 2594 | 77f8dd5a | bellard | break;
|
| 2595 | 367e86e8 | bellard | case 0x33: /* de/3 */ |
| 2596 | 367e86e8 | bellard | switch(rm) {
|
| 2597 | 367e86e8 | bellard | case 1: /* fcompp */ |
| 2598 | 927f621e | bellard | gen_op_fmov_FT0_STN(1);
|
| 2599 | 927f621e | bellard | gen_op_fcom_ST0_FT0(); |
| 2600 | 927f621e | bellard | gen_op_fpop(); |
| 2601 | 927f621e | bellard | gen_op_fpop(); |
| 2602 | 367e86e8 | bellard | break;
|
| 2603 | 367e86e8 | bellard | default:
|
| 2604 | 1a9353d2 | bellard | goto illegal_op;
|
| 2605 | 367e86e8 | bellard | } |
| 2606 | 367e86e8 | bellard | break;
|
| 2607 | 367e86e8 | bellard | case 0x3c: /* df/4 */ |
| 2608 | 367e86e8 | bellard | switch(rm) {
|
| 2609 | 367e86e8 | bellard | case 0: |
| 2610 | 77f8dd5a | bellard | gen_op_fnstsw_EAX(); |
| 2611 | 367e86e8 | bellard | break;
|
| 2612 | 367e86e8 | bellard | default:
|
| 2613 | 1a9353d2 | bellard | goto illegal_op;
|
| 2614 | 367e86e8 | bellard | } |
| 2615 | 367e86e8 | bellard | break;
|
| 2616 | 367e86e8 | bellard | default:
|
| 2617 | 1a9353d2 | bellard | goto illegal_op;
|
| 2618 | 367e86e8 | bellard | } |
| 2619 | 367e86e8 | bellard | } |
| 2620 | 367e86e8 | bellard | break;
|
| 2621 | 367e86e8 | bellard | /************************/
|
| 2622 | 367e86e8 | bellard | /* string ops */
|
| 2623 | 367e86e8 | bellard | case 0xa4: /* movsS */ |
| 2624 | 367e86e8 | bellard | case 0xa5: |
| 2625 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2626 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2627 | 367e86e8 | bellard | else
|
| 2628 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2629 | 367e86e8 | bellard | if (prefixes & PREFIX_REPZ) {
|
| 2630 | 367e86e8 | bellard | gen_op_movs[3 + ot]();
|
| 2631 | 367e86e8 | bellard | } else {
|
| 2632 | 367e86e8 | bellard | gen_op_movs[ot](); |
| 2633 | 367e86e8 | bellard | } |
| 2634 | 367e86e8 | bellard | break;
|
| 2635 | 367e86e8 | bellard | |
| 2636 | 367e86e8 | bellard | case 0xaa: /* stosS */ |
| 2637 | 367e86e8 | bellard | case 0xab: |
| 2638 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2639 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2640 | 367e86e8 | bellard | else
|
| 2641 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2642 | 367e86e8 | bellard | if (prefixes & PREFIX_REPZ) {
|
| 2643 | 367e86e8 | bellard | gen_op_stos[3 + ot]();
|
| 2644 | 367e86e8 | bellard | } else {
|
| 2645 | 367e86e8 | bellard | gen_op_stos[ot](); |
| 2646 | 367e86e8 | bellard | } |
| 2647 | 367e86e8 | bellard | break;
|
| 2648 | 367e86e8 | bellard | case 0xac: /* lodsS */ |
| 2649 | 367e86e8 | bellard | case 0xad: |
| 2650 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2651 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2652 | 367e86e8 | bellard | else
|
| 2653 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2654 | 367e86e8 | bellard | if (prefixes & PREFIX_REPZ) {
|
| 2655 | 367e86e8 | bellard | gen_op_lods[3 + ot]();
|
| 2656 | 367e86e8 | bellard | } else {
|
| 2657 | 367e86e8 | bellard | gen_op_lods[ot](); |
| 2658 | 367e86e8 | bellard | } |
| 2659 | 367e86e8 | bellard | break;
|
| 2660 | 367e86e8 | bellard | case 0xae: /* scasS */ |
| 2661 | 367e86e8 | bellard | case 0xaf: |
| 2662 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2663 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2664 | 367e86e8 | bellard | else
|
| 2665 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2666 | 367e86e8 | bellard | if (prefixes & PREFIX_REPNZ) {
|
| 2667 | 4b74fe1f | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2668 | 4b74fe1f | bellard | gen_op_set_cc_op(s->cc_op); |
| 2669 | 367e86e8 | bellard | gen_op_scas[6 + ot]();
|
| 2670 | 4b74fe1f | bellard | s->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 2671 | 367e86e8 | bellard | } else if (prefixes & PREFIX_REPZ) { |
| 2672 | 4b74fe1f | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2673 | 4b74fe1f | bellard | gen_op_set_cc_op(s->cc_op); |
| 2674 | 367e86e8 | bellard | gen_op_scas[3 + ot]();
|
| 2675 | 4b74fe1f | bellard | s->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 2676 | 367e86e8 | bellard | } else {
|
| 2677 | 367e86e8 | bellard | gen_op_scas[ot](); |
| 2678 | 4b74fe1f | bellard | s->cc_op = CC_OP_SUBB + ot; |
| 2679 | 367e86e8 | bellard | } |
| 2680 | 367e86e8 | bellard | break;
|
| 2681 | 367e86e8 | bellard | |
| 2682 | 367e86e8 | bellard | case 0xa6: /* cmpsS */ |
| 2683 | 367e86e8 | bellard | case 0xa7: |
| 2684 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2685 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2686 | 367e86e8 | bellard | else
|
| 2687 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2688 | 367e86e8 | bellard | if (prefixes & PREFIX_REPNZ) {
|
| 2689 | 4b74fe1f | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2690 | 4b74fe1f | bellard | gen_op_set_cc_op(s->cc_op); |
| 2691 | 367e86e8 | bellard | gen_op_cmps[6 + ot]();
|
| 2692 | 4b74fe1f | bellard | s->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 2693 | 367e86e8 | bellard | } else if (prefixes & PREFIX_REPZ) { |
| 2694 | 4b74fe1f | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2695 | 4b74fe1f | bellard | gen_op_set_cc_op(s->cc_op); |
| 2696 | 367e86e8 | bellard | gen_op_cmps[3 + ot]();
|
| 2697 | 4b74fe1f | bellard | s->cc_op = CC_OP_DYNAMIC; /* cannot predict flags after */
|
| 2698 | 367e86e8 | bellard | } else {
|
| 2699 | 367e86e8 | bellard | gen_op_cmps[ot](); |
| 2700 | 4b74fe1f | bellard | s->cc_op = CC_OP_SUBB + ot; |
| 2701 | 367e86e8 | bellard | } |
| 2702 | 367e86e8 | bellard | break;
|
| 2703 | 367e86e8 | bellard | |
| 2704 | ba1c6e37 | bellard | /************************/
|
| 2705 | ba1c6e37 | bellard | /* port I/O */
|
| 2706 | 367e86e8 | bellard | case 0x6c: /* insS */ |
| 2707 | 367e86e8 | bellard | case 0x6d: |
| 2708 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2709 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2710 | 367e86e8 | bellard | else
|
| 2711 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2712 | 367e86e8 | bellard | if (prefixes & PREFIX_REPZ) {
|
| 2713 | 367e86e8 | bellard | gen_op_ins[3 + ot]();
|
| 2714 | 367e86e8 | bellard | } else {
|
| 2715 | 367e86e8 | bellard | gen_op_ins[ot](); |
| 2716 | 367e86e8 | bellard | } |
| 2717 | 367e86e8 | bellard | break;
|
| 2718 | 367e86e8 | bellard | case 0x6e: /* outsS */ |
| 2719 | 367e86e8 | bellard | case 0x6f: |
| 2720 | 367e86e8 | bellard | if ((b & 1) == 0) |
| 2721 | 367e86e8 | bellard | ot = OT_BYTE; |
| 2722 | 367e86e8 | bellard | else
|
| 2723 | 367e86e8 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2724 | 367e86e8 | bellard | if (prefixes & PREFIX_REPZ) {
|
| 2725 | 367e86e8 | bellard | gen_op_outs[3 + ot]();
|
| 2726 | 367e86e8 | bellard | } else {
|
| 2727 | 367e86e8 | bellard | gen_op_outs[ot](); |
| 2728 | 367e86e8 | bellard | } |
| 2729 | 367e86e8 | bellard | break;
|
| 2730 | ba1c6e37 | bellard | case 0xe4: |
| 2731 | ba1c6e37 | bellard | case 0xe5: |
| 2732 | ba1c6e37 | bellard | if ((b & 1) == 0) |
| 2733 | ba1c6e37 | bellard | ot = OT_BYTE; |
| 2734 | ba1c6e37 | bellard | else
|
| 2735 | ba1c6e37 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2736 | ba1c6e37 | bellard | val = ldub(s->pc++); |
| 2737 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 2738 | ba1c6e37 | bellard | gen_op_in[ot](); |
| 2739 | ba1c6e37 | bellard | gen_op_mov_reg_T1[ot][R_EAX](); |
| 2740 | ba1c6e37 | bellard | break;
|
| 2741 | ba1c6e37 | bellard | case 0xe6: |
| 2742 | ba1c6e37 | bellard | case 0xe7: |
| 2743 | ba1c6e37 | bellard | if ((b & 1) == 0) |
| 2744 | ba1c6e37 | bellard | ot = OT_BYTE; |
| 2745 | ba1c6e37 | bellard | else
|
| 2746 | ba1c6e37 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2747 | ba1c6e37 | bellard | val = ldub(s->pc++); |
| 2748 | ba1c6e37 | bellard | gen_op_movl_T0_im(val); |
| 2749 | ba1c6e37 | bellard | gen_op_mov_TN_reg[ot][1][R_EAX]();
|
| 2750 | ba1c6e37 | bellard | gen_op_out[ot](); |
| 2751 | ba1c6e37 | bellard | break;
|
| 2752 | ba1c6e37 | bellard | case 0xec: |
| 2753 | ba1c6e37 | bellard | case 0xed: |
| 2754 | ba1c6e37 | bellard | if ((b & 1) == 0) |
| 2755 | ba1c6e37 | bellard | ot = OT_BYTE; |
| 2756 | ba1c6e37 | bellard | else
|
| 2757 | ba1c6e37 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2758 | ba1c6e37 | bellard | gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
|
| 2759 | ba1c6e37 | bellard | gen_op_in[ot](); |
| 2760 | ba1c6e37 | bellard | gen_op_mov_reg_T1[ot][R_EAX](); |
| 2761 | ba1c6e37 | bellard | break;
|
| 2762 | ba1c6e37 | bellard | case 0xee: |
| 2763 | ba1c6e37 | bellard | case 0xef: |
| 2764 | ba1c6e37 | bellard | if ((b & 1) == 0) |
| 2765 | ba1c6e37 | bellard | ot = OT_BYTE; |
| 2766 | ba1c6e37 | bellard | else
|
| 2767 | ba1c6e37 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2768 | ba1c6e37 | bellard | gen_op_mov_TN_reg[OT_WORD][0][R_EDX]();
|
| 2769 | ba1c6e37 | bellard | gen_op_mov_TN_reg[ot][1][R_EAX]();
|
| 2770 | ba1c6e37 | bellard | gen_op_out[ot](); |
| 2771 | ba1c6e37 | bellard | break;
|
| 2772 | 367e86e8 | bellard | |
| 2773 | 367e86e8 | bellard | /************************/
|
| 2774 | 367e86e8 | bellard | /* control */
|
| 2775 | 367e86e8 | bellard | case 0xc2: /* ret im */ |
| 2776 | 367e86e8 | bellard | val = ldsw(s->pc); |
| 2777 | 367e86e8 | bellard | s->pc += 2;
|
| 2778 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2779 | dab2ed99 | bellard | if (s->ss32)
|
| 2780 | dab2ed99 | bellard | gen_op_addl_ESP_im(val + (2 << s->dflag));
|
| 2781 | dab2ed99 | bellard | else
|
| 2782 | dab2ed99 | bellard | gen_op_addw_ESP_im(val + (2 << s->dflag));
|
| 2783 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2784 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 2785 | 367e86e8 | bellard | gen_op_jmp_T0(); |
| 2786 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2787 | 367e86e8 | bellard | break;
|
| 2788 | 367e86e8 | bellard | case 0xc3: /* ret */ |
| 2789 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2790 | dab2ed99 | bellard | gen_pop_update(s); |
| 2791 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2792 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 2793 | 367e86e8 | bellard | gen_op_jmp_T0(); |
| 2794 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2795 | 367e86e8 | bellard | break;
|
| 2796 | dab2ed99 | bellard | case 0xca: /* lret im */ |
| 2797 | dab2ed99 | bellard | val = ldsw(s->pc); |
| 2798 | dab2ed99 | bellard | s->pc += 2;
|
| 2799 | dab2ed99 | bellard | /* pop offset */
|
| 2800 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2801 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2802 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 2803 | dab2ed99 | bellard | gen_op_jmp_T0(); |
| 2804 | dab2ed99 | bellard | gen_pop_update(s); |
| 2805 | dab2ed99 | bellard | /* pop selector */
|
| 2806 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2807 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 2808 | dab2ed99 | bellard | gen_pop_update(s); |
| 2809 | dab2ed99 | bellard | /* add stack offset */
|
| 2810 | dab2ed99 | bellard | if (s->ss32)
|
| 2811 | dab2ed99 | bellard | gen_op_addl_ESP_im(val + (2 << s->dflag));
|
| 2812 | dab2ed99 | bellard | else
|
| 2813 | dab2ed99 | bellard | gen_op_addw_ESP_im(val + (2 << s->dflag));
|
| 2814 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 2815 | dab2ed99 | bellard | break;
|
| 2816 | dab2ed99 | bellard | case 0xcb: /* lret */ |
| 2817 | dab2ed99 | bellard | /* pop offset */
|
| 2818 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2819 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2820 | dab2ed99 | bellard | gen_op_andl_T0_ffff(); |
| 2821 | dab2ed99 | bellard | gen_op_jmp_T0(); |
| 2822 | dab2ed99 | bellard | gen_pop_update(s); |
| 2823 | dab2ed99 | bellard | /* pop selector */
|
| 2824 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2825 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 2826 | dab2ed99 | bellard | gen_pop_update(s); |
| 2827 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2828 | 367e86e8 | bellard | break;
|
| 2829 | dab2ed99 | bellard | case 0xe8: /* call im */ |
| 2830 | dab2ed99 | bellard | {
|
| 2831 | dab2ed99 | bellard | unsigned int next_eip; |
| 2832 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2833 | dab2ed99 | bellard | val = insn_get(s, ot); |
| 2834 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 2835 | dab2ed99 | bellard | val += next_eip; |
| 2836 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2837 | dab2ed99 | bellard | val &= 0xffff;
|
| 2838 | dab2ed99 | bellard | gen_op_movl_T0_im(next_eip); |
| 2839 | dab2ed99 | bellard | gen_push_T0(s); |
| 2840 | dab2ed99 | bellard | gen_op_jmp_im(val); |
| 2841 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 2842 | dab2ed99 | bellard | } |
| 2843 | dab2ed99 | bellard | break;
|
| 2844 | dab2ed99 | bellard | case 0x9a: /* lcall im */ |
| 2845 | dab2ed99 | bellard | {
|
| 2846 | dab2ed99 | bellard | unsigned int selector, offset; |
| 2847 | dab2ed99 | bellard | |
| 2848 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2849 | dab2ed99 | bellard | offset = insn_get(s, ot); |
| 2850 | dab2ed99 | bellard | selector = insn_get(s, OT_WORD); |
| 2851 | dab2ed99 | bellard | |
| 2852 | dab2ed99 | bellard | /* push return segment + offset */
|
| 2853 | dab2ed99 | bellard | gen_op_movl_T0_seg(R_CS); |
| 2854 | dab2ed99 | bellard | gen_push_T0(s); |
| 2855 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 2856 | dab2ed99 | bellard | gen_op_movl_T0_im(next_eip); |
| 2857 | dab2ed99 | bellard | gen_push_T0(s); |
| 2858 | dab2ed99 | bellard | |
| 2859 | dab2ed99 | bellard | /* change cs and pc */
|
| 2860 | dab2ed99 | bellard | gen_op_movl_T0_im(selector); |
| 2861 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 2862 | dab2ed99 | bellard | gen_op_jmp_im((unsigned long)offset); |
| 2863 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 2864 | dab2ed99 | bellard | } |
| 2865 | dab2ed99 | bellard | break;
|
| 2866 | 367e86e8 | bellard | case 0xe9: /* jmp */ |
| 2867 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2868 | dab2ed99 | bellard | val = insn_get(s, ot); |
| 2869 | dab2ed99 | bellard | val += s->pc - s->cs_base; |
| 2870 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2871 | dab2ed99 | bellard | val = val & 0xffff;
|
| 2872 | 367e86e8 | bellard | gen_op_jmp_im(val); |
| 2873 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2874 | 367e86e8 | bellard | break;
|
| 2875 | dab2ed99 | bellard | case 0xea: /* ljmp im */ |
| 2876 | dab2ed99 | bellard | {
|
| 2877 | dab2ed99 | bellard | unsigned int selector, offset; |
| 2878 | dab2ed99 | bellard | |
| 2879 | dab2ed99 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2880 | dab2ed99 | bellard | offset = insn_get(s, ot); |
| 2881 | dab2ed99 | bellard | selector = insn_get(s, OT_WORD); |
| 2882 | dab2ed99 | bellard | |
| 2883 | dab2ed99 | bellard | /* change cs and pc */
|
| 2884 | dab2ed99 | bellard | gen_op_movl_T0_im(selector); |
| 2885 | dab2ed99 | bellard | gen_movl_seg_T0(s, R_CS); |
| 2886 | dab2ed99 | bellard | gen_op_jmp_im((unsigned long)offset); |
| 2887 | dab2ed99 | bellard | s->is_jmp = 1;
|
| 2888 | dab2ed99 | bellard | } |
| 2889 | dab2ed99 | bellard | break;
|
| 2890 | 367e86e8 | bellard | case 0xeb: /* jmp Jb */ |
| 2891 | 367e86e8 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 2892 | dab2ed99 | bellard | val += s->pc - s->cs_base; |
| 2893 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2894 | dab2ed99 | bellard | val = val & 0xffff;
|
| 2895 | 367e86e8 | bellard | gen_op_jmp_im(val); |
| 2896 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2897 | 367e86e8 | bellard | break;
|
| 2898 | 367e86e8 | bellard | case 0x70 ... 0x7f: /* jcc Jb */ |
| 2899 | 367e86e8 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 2900 | 367e86e8 | bellard | goto do_jcc;
|
| 2901 | 367e86e8 | bellard | case 0x180 ... 0x18f: /* jcc Jv */ |
| 2902 | 367e86e8 | bellard | if (dflag) {
|
| 2903 | 367e86e8 | bellard | val = insn_get(s, OT_LONG); |
| 2904 | 367e86e8 | bellard | } else {
|
| 2905 | 367e86e8 | bellard | val = (int16_t)insn_get(s, OT_WORD); |
| 2906 | 367e86e8 | bellard | } |
| 2907 | 367e86e8 | bellard | do_jcc:
|
| 2908 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 2909 | dab2ed99 | bellard | val += next_eip; |
| 2910 | dab2ed99 | bellard | if (s->dflag == 0) |
| 2911 | dab2ed99 | bellard | val &= 0xffff;
|
| 2912 | dab2ed99 | bellard | gen_jcc(s, b, val, next_eip); |
| 2913 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 2914 | 367e86e8 | bellard | break;
|
| 2915 | 367e86e8 | bellard | |
| 2916 | 5dd9488c | bellard | case 0x190 ... 0x19f: /* setcc Gv */ |
| 2917 | 367e86e8 | bellard | modrm = ldub(s->pc++); |
| 2918 | 367e86e8 | bellard | gen_setcc(s, b); |
| 2919 | 367e86e8 | bellard | gen_ldst_modrm(s, modrm, OT_BYTE, OR_TMP0, 1);
|
| 2920 | 367e86e8 | bellard | break;
|
| 2921 | 5dd9488c | bellard | case 0x140 ... 0x14f: /* cmov Gv, Ev */ |
| 2922 | 5dd9488c | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2923 | 5dd9488c | bellard | modrm = ldub(s->pc++); |
| 2924 | 5dd9488c | bellard | reg = (modrm >> 3) & 7; |
| 2925 | 5dd9488c | bellard | mod = (modrm >> 6) & 3; |
| 2926 | 5dd9488c | bellard | gen_setcc(s, b); |
| 2927 | 5dd9488c | bellard | if (mod != 3) { |
| 2928 | 5dd9488c | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2929 | 5dd9488c | bellard | gen_op_ld_T1_A0[ot](); |
| 2930 | 5dd9488c | bellard | } else {
|
| 2931 | 5dd9488c | bellard | rm = modrm & 7;
|
| 2932 | 5dd9488c | bellard | gen_op_mov_TN_reg[ot][1][rm]();
|
| 2933 | 5dd9488c | bellard | } |
| 2934 | 5dd9488c | bellard | gen_op_cmov_reg_T1_T0[ot - OT_WORD][reg](); |
| 2935 | 5dd9488c | bellard | break;
|
| 2936 | 5dd9488c | bellard | |
| 2937 | 367e86e8 | bellard | /************************/
|
| 2938 | 367e86e8 | bellard | /* flags */
|
| 2939 | 367e86e8 | bellard | case 0x9c: /* pushf */ |
| 2940 | 1017ebe9 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2941 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2942 | 367e86e8 | bellard | gen_op_movl_T0_eflags(); |
| 2943 | dab2ed99 | bellard | gen_push_T0(s); |
| 2944 | 367e86e8 | bellard | break;
|
| 2945 | 367e86e8 | bellard | case 0x9d: /* popf */ |
| 2946 | dab2ed99 | bellard | gen_pop_T0(s); |
| 2947 | 367e86e8 | bellard | gen_op_movl_eflags_T0(); |
| 2948 | dab2ed99 | bellard | gen_pop_update(s); |
| 2949 | 367e86e8 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 2950 | 367e86e8 | bellard | break;
|
| 2951 | 367e86e8 | bellard | case 0x9e: /* sahf */ |
| 2952 | 367e86e8 | bellard | gen_op_mov_TN_reg[OT_BYTE][0][R_AH]();
|
| 2953 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2954 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2955 | 367e86e8 | bellard | gen_op_movb_eflags_T0(); |
| 2956 | 367e86e8 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 2957 | 367e86e8 | bellard | break;
|
| 2958 | 367e86e8 | bellard | case 0x9f: /* lahf */ |
| 2959 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2960 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2961 | 367e86e8 | bellard | gen_op_movl_T0_eflags(); |
| 2962 | 367e86e8 | bellard | gen_op_mov_reg_T0[OT_BYTE][R_AH](); |
| 2963 | 367e86e8 | bellard | break;
|
| 2964 | 367e86e8 | bellard | case 0xf5: /* cmc */ |
| 2965 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2966 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2967 | 367e86e8 | bellard | gen_op_cmc(); |
| 2968 | 367e86e8 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 2969 | 367e86e8 | bellard | break;
|
| 2970 | 367e86e8 | bellard | case 0xf8: /* clc */ |
| 2971 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2972 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2973 | 367e86e8 | bellard | gen_op_clc(); |
| 2974 | 367e86e8 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 2975 | 367e86e8 | bellard | break;
|
| 2976 | 367e86e8 | bellard | case 0xf9: /* stc */ |
| 2977 | 367e86e8 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 2978 | 1017ebe9 | bellard | gen_op_set_cc_op(s->cc_op); |
| 2979 | 367e86e8 | bellard | gen_op_stc(); |
| 2980 | 367e86e8 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 2981 | 367e86e8 | bellard | break;
|
| 2982 | 367e86e8 | bellard | case 0xfc: /* cld */ |
| 2983 | 367e86e8 | bellard | gen_op_cld(); |
| 2984 | 367e86e8 | bellard | break;
|
| 2985 | 367e86e8 | bellard | case 0xfd: /* std */ |
| 2986 | 367e86e8 | bellard | gen_op_std(); |
| 2987 | 367e86e8 | bellard | break;
|
| 2988 | 367e86e8 | bellard | |
| 2989 | 367e86e8 | bellard | /************************/
|
| 2990 | 4b74fe1f | bellard | /* bit operations */
|
| 2991 | 4b74fe1f | bellard | case 0x1ba: /* bt/bts/btr/btc Gv, im */ |
| 2992 | 4b74fe1f | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 2993 | 4b74fe1f | bellard | modrm = ldub(s->pc++); |
| 2994 | 4b74fe1f | bellard | op = (modrm >> 3) & 7; |
| 2995 | 4b74fe1f | bellard | mod = (modrm >> 6) & 3; |
| 2996 | 4b74fe1f | bellard | rm = modrm & 7;
|
| 2997 | 4b74fe1f | bellard | if (mod != 3) { |
| 2998 | 4b74fe1f | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 2999 | 4b74fe1f | bellard | gen_op_ld_T0_A0[ot](); |
| 3000 | 4b74fe1f | bellard | } else {
|
| 3001 | 4b74fe1f | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 3002 | 4b74fe1f | bellard | } |
| 3003 | 4b74fe1f | bellard | /* load shift */
|
| 3004 | 4b74fe1f | bellard | val = ldub(s->pc++); |
| 3005 | 4b74fe1f | bellard | gen_op_movl_T1_im(val); |
| 3006 | 4b74fe1f | bellard | if (op < 4) |
| 3007 | 1a9353d2 | bellard | goto illegal_op;
|
| 3008 | 4b74fe1f | bellard | op -= 4;
|
| 3009 | 4b74fe1f | bellard | gen_op_btx_T0_T1_cc[ot - OT_WORD][op](); |
| 3010 | d57c4e01 | bellard | s->cc_op = CC_OP_SARB + ot; |
| 3011 | 4b74fe1f | bellard | if (op != 0) { |
| 3012 | 4b74fe1f | bellard | if (mod != 3) |
| 3013 | 4b74fe1f | bellard | gen_op_st_T0_A0[ot](); |
| 3014 | 4b74fe1f | bellard | else
|
| 3015 | 4b74fe1f | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 3016 | 4b74fe1f | bellard | } |
| 3017 | 4b74fe1f | bellard | break;
|
| 3018 | 4b74fe1f | bellard | case 0x1a3: /* bt Gv, Ev */ |
| 3019 | 4b74fe1f | bellard | op = 0;
|
| 3020 | 4b74fe1f | bellard | goto do_btx;
|
| 3021 | 4b74fe1f | bellard | case 0x1ab: /* bts */ |
| 3022 | 4b74fe1f | bellard | op = 1;
|
| 3023 | 4b74fe1f | bellard | goto do_btx;
|
| 3024 | 4b74fe1f | bellard | case 0x1b3: /* btr */ |
| 3025 | 4b74fe1f | bellard | op = 2;
|
| 3026 | 4b74fe1f | bellard | goto do_btx;
|
| 3027 | 4b74fe1f | bellard | case 0x1bb: /* btc */ |
| 3028 | 4b74fe1f | bellard | op = 3;
|
| 3029 | 4b74fe1f | bellard | do_btx:
|
| 3030 | 4b74fe1f | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 3031 | 4b74fe1f | bellard | modrm = ldub(s->pc++); |
| 3032 | 4b74fe1f | bellard | reg = (modrm >> 3) & 7; |
| 3033 | 4b74fe1f | bellard | mod = (modrm >> 6) & 3; |
| 3034 | 4b74fe1f | bellard | rm = modrm & 7;
|
| 3035 | 4b74fe1f | bellard | gen_op_mov_TN_reg[OT_LONG][1][reg]();
|
| 3036 | 4b74fe1f | bellard | if (mod != 3) { |
| 3037 | 4b74fe1f | bellard | gen_lea_modrm(s, modrm, ®_addr, &offset_addr); |
| 3038 | 4b74fe1f | bellard | /* specific case: we need to add a displacement */
|
| 3039 | 4b74fe1f | bellard | if (ot == OT_WORD)
|
| 3040 | 4b74fe1f | bellard | gen_op_add_bitw_A0_T1(); |
| 3041 | 4b74fe1f | bellard | else
|
| 3042 | 4b74fe1f | bellard | gen_op_add_bitl_A0_T1(); |
| 3043 | 4b74fe1f | bellard | gen_op_ld_T0_A0[ot](); |
| 3044 | 4b74fe1f | bellard | } else {
|
| 3045 | 4b74fe1f | bellard | gen_op_mov_TN_reg[ot][0][rm]();
|
| 3046 | 4b74fe1f | bellard | } |
| 3047 | 4b74fe1f | bellard | gen_op_btx_T0_T1_cc[ot - OT_WORD][op](); |
| 3048 | d57c4e01 | bellard | s->cc_op = CC_OP_SARB + ot; |
| 3049 | 4b74fe1f | bellard | if (op != 0) { |
| 3050 | 4b74fe1f | bellard | if (mod != 3) |
| 3051 | 4b74fe1f | bellard | gen_op_st_T0_A0[ot](); |
| 3052 | 4b74fe1f | bellard | else
|
| 3053 | 4b74fe1f | bellard | gen_op_mov_reg_T0[ot][rm](); |
| 3054 | 4b74fe1f | bellard | } |
| 3055 | 4b74fe1f | bellard | break;
|
| 3056 | 77f8dd5a | bellard | case 0x1bc: /* bsf */ |
| 3057 | 77f8dd5a | bellard | case 0x1bd: /* bsr */ |
| 3058 | 77f8dd5a | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 3059 | 77f8dd5a | bellard | modrm = ldub(s->pc++); |
| 3060 | 77f8dd5a | bellard | reg = (modrm >> 3) & 7; |
| 3061 | 77f8dd5a | bellard | gen_ldst_modrm(s, modrm, ot, OR_TMP0, 0);
|
| 3062 | 77f8dd5a | bellard | gen_op_bsx_T0_cc[ot - OT_WORD][b & 1]();
|
| 3063 | 77f8dd5a | bellard | /* NOTE: we always write back the result. Intel doc says it is
|
| 3064 | 77f8dd5a | bellard | undefined if T0 == 0 */
|
| 3065 | 77f8dd5a | bellard | gen_op_mov_reg_T0[ot][reg](); |
| 3066 | 77f8dd5a | bellard | s->cc_op = CC_OP_LOGICB + ot; |
| 3067 | 77f8dd5a | bellard | break;
|
| 3068 | 4b74fe1f | bellard | /************************/
|
| 3069 | 27362c82 | bellard | /* bcd */
|
| 3070 | 27362c82 | bellard | case 0x27: /* daa */ |
| 3071 | 27362c82 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3072 | 27362c82 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3073 | 27362c82 | bellard | gen_op_daa(); |
| 3074 | 27362c82 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 3075 | 27362c82 | bellard | break;
|
| 3076 | 27362c82 | bellard | case 0x2f: /* das */ |
| 3077 | 27362c82 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3078 | 27362c82 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3079 | 27362c82 | bellard | gen_op_das(); |
| 3080 | 27362c82 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 3081 | 27362c82 | bellard | break;
|
| 3082 | 27362c82 | bellard | case 0x37: /* aaa */ |
| 3083 | 27362c82 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3084 | 27362c82 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3085 | 27362c82 | bellard | gen_op_aaa(); |
| 3086 | 27362c82 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 3087 | 27362c82 | bellard | break;
|
| 3088 | 27362c82 | bellard | case 0x3f: /* aas */ |
| 3089 | 27362c82 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3090 | 27362c82 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3091 | 27362c82 | bellard | gen_op_aas(); |
| 3092 | 27362c82 | bellard | s->cc_op = CC_OP_EFLAGS; |
| 3093 | 27362c82 | bellard | break;
|
| 3094 | 27362c82 | bellard | case 0xd4: /* aam */ |
| 3095 | 27362c82 | bellard | val = ldub(s->pc++); |
| 3096 | 27362c82 | bellard | gen_op_aam(val); |
| 3097 | 27362c82 | bellard | s->cc_op = CC_OP_LOGICB; |
| 3098 | 27362c82 | bellard | break;
|
| 3099 | 27362c82 | bellard | case 0xd5: /* aad */ |
| 3100 | 27362c82 | bellard | val = ldub(s->pc++); |
| 3101 | 27362c82 | bellard | gen_op_aad(val); |
| 3102 | 27362c82 | bellard | s->cc_op = CC_OP_LOGICB; |
| 3103 | 27362c82 | bellard | break;
|
| 3104 | 27362c82 | bellard | /************************/
|
| 3105 | 367e86e8 | bellard | /* misc */
|
| 3106 | 367e86e8 | bellard | case 0x90: /* nop */ |
| 3107 | 367e86e8 | bellard | break;
|
| 3108 | 0ecfa993 | bellard | case 0xcc: /* int3 */ |
| 3109 | 0ecfa993 | bellard | gen_op_int3((long)pc_start);
|
| 3110 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 3111 | 0ecfa993 | bellard | break;
|
| 3112 | 0ecfa993 | bellard | case 0xcd: /* int N */ |
| 3113 | 0ecfa993 | bellard | val = ldub(s->pc++); |
| 3114 | 0ecfa993 | bellard | /* XXX: currently we ignore the interrupt number */
|
| 3115 | 0ecfa993 | bellard | gen_op_int_im((long)pc_start);
|
| 3116 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 3117 | 0ecfa993 | bellard | break;
|
| 3118 | 0ecfa993 | bellard | case 0xce: /* into */ |
| 3119 | 0ecfa993 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3120 | 0ecfa993 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3121 | 0ecfa993 | bellard | gen_op_into((long)pc_start, (long)s->pc); |
| 3122 | 6dbad63e | bellard | s->is_jmp = 1;
|
| 3123 | 0ecfa993 | bellard | break;
|
| 3124 | 4b74fe1f | bellard | case 0x1c8 ... 0x1cf: /* bswap reg */ |
| 3125 | 27362c82 | bellard | reg = b & 7;
|
| 3126 | 27362c82 | bellard | gen_op_mov_TN_reg[OT_LONG][0][reg]();
|
| 3127 | 27362c82 | bellard | gen_op_bswapl_T0(); |
| 3128 | 27362c82 | bellard | gen_op_mov_reg_T0[OT_LONG][reg](); |
| 3129 | 27362c82 | bellard | break;
|
| 3130 | 27362c82 | bellard | case 0xd6: /* salc */ |
| 3131 | 27362c82 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3132 | 27362c82 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3133 | 27362c82 | bellard | gen_op_salc(); |
| 3134 | 27362c82 | bellard | break;
|
| 3135 | 1a9353d2 | bellard | case 0xe0: /* loopnz */ |
| 3136 | 1a9353d2 | bellard | case 0xe1: /* loopz */ |
| 3137 | 1a9353d2 | bellard | if (s->cc_op != CC_OP_DYNAMIC)
|
| 3138 | 1a9353d2 | bellard | gen_op_set_cc_op(s->cc_op); |
| 3139 | 1a9353d2 | bellard | /* FALL THRU */
|
| 3140 | 1a9353d2 | bellard | case 0xe2: /* loop */ |
| 3141 | 1a9353d2 | bellard | case 0xe3: /* jecxz */ |
| 3142 | 1a9353d2 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 3143 | dab2ed99 | bellard | next_eip = s->pc - s->cs_base; |
| 3144 | dab2ed99 | bellard | val += next_eip; |
| 3145 | dab2ed99 | bellard | if (s->dflag == 0) |
| 3146 | dab2ed99 | bellard | val &= 0xffff;
|
| 3147 | dab2ed99 | bellard | gen_op_loop[s->aflag][b & 3](val, next_eip);
|
| 3148 | 1a9353d2 | bellard | s->is_jmp = 1;
|
| 3149 | 1a9353d2 | bellard | break;
|
| 3150 | 5dd9488c | bellard | case 0x131: /* rdtsc */ |
| 3151 | 27362c82 | bellard | gen_op_rdtsc(); |
| 3152 | 27362c82 | bellard | break;
|
| 3153 | 0ecfa993 | bellard | #if 0
|
| 3154 | 367e86e8 | bellard | case 0x1a2: /* cpuid */
|
| 3155 | 367e86e8 | bellard | gen_insn0(OP_ASM);
|
| 3156 | 367e86e8 | bellard | break;
|
| 3157 | 367e86e8 | bellard | #endif
|
| 3158 | 367e86e8 | bellard | default:
|
| 3159 | 1a9353d2 | bellard | goto illegal_op;
|
| 3160 | 367e86e8 | bellard | } |
| 3161 | 1b6b029e | bellard | /* lock generation */
|
| 3162 | 1b6b029e | bellard | if (s->prefix & PREFIX_LOCK)
|
| 3163 | 1b6b029e | bellard | gen_op_unlock(); |
| 3164 | 367e86e8 | bellard | return (long)s->pc; |
| 3165 | 6dbad63e | bellard | illegal_op:
|
| 3166 | 1b6b029e | bellard | /* XXX: ensure that no lock was generated */
|
| 3167 | 6dbad63e | bellard | return -1; |
| 3168 | 367e86e8 | bellard | } |
| 3169 | 367e86e8 | bellard | |
| 3170 | dc99065b | bellard | #define CC_OSZAPC (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C)
|
| 3171 | dc99065b | bellard | #define CC_OSZAP (CC_O | CC_S | CC_Z | CC_A | CC_P)
|
| 3172 | dc99065b | bellard | |
| 3173 | dc99065b | bellard | /* flags read by an operation */
|
| 3174 | dc99065b | bellard | static uint16_t opc_read_flags[NB_OPS] = {
|
| 3175 | dc99065b | bellard | [INDEX_op_aas] = CC_A, |
| 3176 | dc99065b | bellard | [INDEX_op_aaa] = CC_A, |
| 3177 | dc99065b | bellard | [INDEX_op_das] = CC_A | CC_C, |
| 3178 | dc99065b | bellard | [INDEX_op_daa] = CC_A | CC_C, |
| 3179 | dc99065b | bellard | |
| 3180 | dc99065b | bellard | [INDEX_op_adcb_T0_T1_cc] = CC_C, |
| 3181 | dc99065b | bellard | [INDEX_op_adcw_T0_T1_cc] = CC_C, |
| 3182 | dc99065b | bellard | [INDEX_op_adcl_T0_T1_cc] = CC_C, |
| 3183 | dc99065b | bellard | [INDEX_op_sbbb_T0_T1_cc] = CC_C, |
| 3184 | dc99065b | bellard | [INDEX_op_sbbw_T0_T1_cc] = CC_C, |
| 3185 | dc99065b | bellard | [INDEX_op_sbbl_T0_T1_cc] = CC_C, |
| 3186 | dc99065b | bellard | |
| 3187 | dc99065b | bellard | [INDEX_op_into] = CC_O, |
| 3188 | dc99065b | bellard | |
| 3189 | dc99065b | bellard | [INDEX_op_jo_cc] = CC_O, |
| 3190 | dc99065b | bellard | [INDEX_op_jb_cc] = CC_C, |
| 3191 | dc99065b | bellard | [INDEX_op_jz_cc] = CC_Z, |
| 3192 | dc99065b | bellard | [INDEX_op_jbe_cc] = CC_Z | CC_C, |
| 3193 | dc99065b | bellard | [INDEX_op_js_cc] = CC_S, |
| 3194 | dc99065b | bellard | [INDEX_op_jp_cc] = CC_P, |
| 3195 | dc99065b | bellard | [INDEX_op_jl_cc] = CC_O | CC_S, |
| 3196 | dc99065b | bellard | [INDEX_op_jle_cc] = CC_O | CC_S | CC_Z, |
| 3197 | dc99065b | bellard | |
| 3198 | dc99065b | bellard | [INDEX_op_jb_subb] = CC_C, |
| 3199 | dc99065b | bellard | [INDEX_op_jb_subw] = CC_C, |
| 3200 | dc99065b | bellard | [INDEX_op_jb_subl] = CC_C, |
| 3201 | dc99065b | bellard | |
| 3202 | dc99065b | bellard | [INDEX_op_jz_subb] = CC_Z, |
| 3203 | dc99065b | bellard | [INDEX_op_jz_subw] = CC_Z, |
| 3204 | dc99065b | bellard | [INDEX_op_jz_subl] = CC_Z, |
| 3205 | dc99065b | bellard | |
| 3206 | dc99065b | bellard | [INDEX_op_jbe_subb] = CC_Z | CC_C, |
| 3207 | dc99065b | bellard | [INDEX_op_jbe_subw] = CC_Z | CC_C, |
| 3208 | dc99065b | bellard | [INDEX_op_jbe_subl] = CC_Z | CC_C, |
| 3209 | dc99065b | bellard | |
| 3210 | dc99065b | bellard | [INDEX_op_js_subb] = CC_S, |
| 3211 | dc99065b | bellard | [INDEX_op_js_subw] = CC_S, |
| 3212 | dc99065b | bellard | [INDEX_op_js_subl] = CC_S, |
| 3213 | dc99065b | bellard | |
| 3214 | dc99065b | bellard | [INDEX_op_jl_subb] = CC_O | CC_S, |
| 3215 | dc99065b | bellard | [INDEX_op_jl_subw] = CC_O | CC_S, |
| 3216 | dc99065b | bellard | [INDEX_op_jl_subl] = CC_O | CC_S, |
| 3217 | dc99065b | bellard | |
| 3218 | dc99065b | bellard | [INDEX_op_jle_subb] = CC_O | CC_S | CC_Z, |
| 3219 | dc99065b | bellard | [INDEX_op_jle_subw] = CC_O | CC_S | CC_Z, |
| 3220 | dc99065b | bellard | [INDEX_op_jle_subl] = CC_O | CC_S | CC_Z, |
| 3221 | dc99065b | bellard | |
| 3222 | dc99065b | bellard | [INDEX_op_loopnzw] = CC_Z, |
| 3223 | dc99065b | bellard | [INDEX_op_loopnzl] = CC_Z, |
| 3224 | dc99065b | bellard | [INDEX_op_loopzw] = CC_Z, |
| 3225 | dc99065b | bellard | [INDEX_op_loopzl] = CC_Z, |
| 3226 | dc99065b | bellard | |
| 3227 | dc99065b | bellard | [INDEX_op_seto_T0_cc] = CC_O, |
| 3228 | dc99065b | bellard | [INDEX_op_setb_T0_cc] = CC_C, |
| 3229 | dc99065b | bellard | [INDEX_op_setz_T0_cc] = CC_Z, |
| 3230 | dc99065b | bellard | [INDEX_op_setbe_T0_cc] = CC_Z | CC_C, |
| 3231 | dc99065b | bellard | [INDEX_op_sets_T0_cc] = CC_S, |
| 3232 | dc99065b | bellard | [INDEX_op_setp_T0_cc] = CC_P, |
| 3233 | dc99065b | bellard | [INDEX_op_setl_T0_cc] = CC_O | CC_S, |
| 3234 | dc99065b | bellard | [INDEX_op_setle_T0_cc] = CC_O | CC_S | CC_Z, |
| 3235 | dc99065b | bellard | |
| 3236 | dc99065b | bellard | [INDEX_op_setb_T0_subb] = CC_C, |
| 3237 | dc99065b | bellard | [INDEX_op_setb_T0_subw] = CC_C, |
| 3238 | dc99065b | bellard | [INDEX_op_setb_T0_subl] = CC_C, |
| 3239 | dc99065b | bellard | |
| 3240 | dc99065b | bellard | [INDEX_op_setz_T0_subb] = CC_Z, |
| 3241 | dc99065b | bellard | [INDEX_op_setz_T0_subw] = CC_Z, |
| 3242 | dc99065b | bellard | [INDEX_op_setz_T0_subl] = CC_Z, |
| 3243 | dc99065b | bellard | |
| 3244 | dc99065b | bellard | [INDEX_op_setbe_T0_subb] = CC_Z | CC_C, |
| 3245 | dc99065b | bellard | [INDEX_op_setbe_T0_subw] = CC_Z | CC_C, |
| 3246 | dc99065b | bellard | [INDEX_op_setbe_T0_subl] = CC_Z | CC_C, |
| 3247 | dc99065b | bellard | |
| 3248 | dc99065b | bellard | [INDEX_op_sets_T0_subb] = CC_S, |
| 3249 | dc99065b | bellard | [INDEX_op_sets_T0_subw] = CC_S, |
| 3250 | dc99065b | bellard | [INDEX_op_sets_T0_subl] = CC_S, |
| 3251 | dc99065b | bellard | |
| 3252 | dc99065b | bellard | [INDEX_op_setl_T0_subb] = CC_O | CC_S, |
| 3253 | dc99065b | bellard | [INDEX_op_setl_T0_subw] = CC_O | CC_S, |
| 3254 | dc99065b | bellard | [INDEX_op_setl_T0_subl] = CC_O | CC_S, |
| 3255 | dc99065b | bellard | |
| 3256 | dc99065b | bellard | [INDEX_op_setle_T0_subb] = CC_O | CC_S | CC_Z, |
| 3257 | dc99065b | bellard | [INDEX_op_setle_T0_subw] = CC_O | CC_S | CC_Z, |
| 3258 | dc99065b | bellard | [INDEX_op_setle_T0_subl] = CC_O | CC_S | CC_Z, |
| 3259 | dc99065b | bellard | |
| 3260 | dc99065b | bellard | [INDEX_op_movl_T0_eflags] = CC_OSZAPC, |
| 3261 | dc99065b | bellard | [INDEX_op_cmc] = CC_C, |
| 3262 | dc99065b | bellard | [INDEX_op_salc] = CC_C, |
| 3263 | dc99065b | bellard | |
| 3264 | dc99065b | bellard | [INDEX_op_rclb_T0_T1_cc] = CC_C, |
| 3265 | dc99065b | bellard | [INDEX_op_rclw_T0_T1_cc] = CC_C, |
| 3266 | dc99065b | bellard | [INDEX_op_rcll_T0_T1_cc] = CC_C, |
| 3267 | dc99065b | bellard | [INDEX_op_rcrb_T0_T1_cc] = CC_C, |
| 3268 | dc99065b | bellard | [INDEX_op_rcrw_T0_T1_cc] = CC_C, |
| 3269 | dc99065b | bellard | [INDEX_op_rcrl_T0_T1_cc] = CC_C, |
| 3270 | dc99065b | bellard | }; |
| 3271 | dc99065b | bellard | |
| 3272 | dc99065b | bellard | /* flags written by an operation */
|
| 3273 | dc99065b | bellard | static uint16_t opc_write_flags[NB_OPS] = {
|
| 3274 | dc99065b | bellard | [INDEX_op_addl_T0_T1_cc] = CC_OSZAPC, |
| 3275 | dc99065b | bellard | [INDEX_op_orl_T0_T1_cc] = CC_OSZAPC, |
| 3276 | dc99065b | bellard | [INDEX_op_adcb_T0_T1_cc] = CC_OSZAPC, |
| 3277 | dc99065b | bellard | [INDEX_op_adcw_T0_T1_cc] = CC_OSZAPC, |
| 3278 | dc99065b | bellard | [INDEX_op_adcl_T0_T1_cc] = CC_OSZAPC, |
| 3279 | dc99065b | bellard | [INDEX_op_sbbb_T0_T1_cc] = CC_OSZAPC, |
| 3280 | dc99065b | bellard | [INDEX_op_sbbw_T0_T1_cc] = CC_OSZAPC, |
| 3281 | dc99065b | bellard | [INDEX_op_sbbl_T0_T1_cc] = CC_OSZAPC, |
| 3282 | dc99065b | bellard | [INDEX_op_andl_T0_T1_cc] = CC_OSZAPC, |
| 3283 | dc99065b | bellard | [INDEX_op_subl_T0_T1_cc] = CC_OSZAPC, |
| 3284 | dc99065b | bellard | [INDEX_op_xorl_T0_T1_cc] = CC_OSZAPC, |
| 3285 | dc99065b | bellard | [INDEX_op_cmpl_T0_T1_cc] = CC_OSZAPC, |
| 3286 | dc99065b | bellard | [INDEX_op_negl_T0_cc] = CC_OSZAPC, |
| 3287 | dc99065b | bellard | [INDEX_op_incl_T0_cc] = CC_OSZAP, |
| 3288 | dc99065b | bellard | [INDEX_op_decl_T0_cc] = CC_OSZAP, |
| 3289 | dc99065b | bellard | [INDEX_op_testl_T0_T1_cc] = CC_OSZAPC, |
| 3290 | dc99065b | bellard | |
| 3291 | dc99065b | bellard | [INDEX_op_mulb_AL_T0] = CC_OSZAPC, |
| 3292 | dc99065b | bellard | [INDEX_op_imulb_AL_T0] = CC_OSZAPC, |
| 3293 | dc99065b | bellard | [INDEX_op_mulw_AX_T0] = CC_OSZAPC, |
| 3294 | dc99065b | bellard | [INDEX_op_imulw_AX_T0] = CC_OSZAPC, |
| 3295 | dc99065b | bellard | [INDEX_op_mull_EAX_T0] = CC_OSZAPC, |
| 3296 | dc99065b | bellard | [INDEX_op_imull_EAX_T0] = CC_OSZAPC, |
| 3297 | dc99065b | bellard | [INDEX_op_imulw_T0_T1] = CC_OSZAPC, |
| 3298 | dc99065b | bellard | [INDEX_op_imull_T0_T1] = CC_OSZAPC, |
| 3299 | dc99065b | bellard | |
| 3300 | dc99065b | bellard | /* bcd */
|
| 3301 | dc99065b | bellard | [INDEX_op_aam] = CC_OSZAPC, |
| 3302 | dc99065b | bellard | [INDEX_op_aad] = CC_OSZAPC, |
| 3303 | dc99065b | bellard | [INDEX_op_aas] = CC_OSZAPC, |
| 3304 | dc99065b | bellard | [INDEX_op_aaa] = CC_OSZAPC, |
| 3305 | dc99065b | bellard | [INDEX_op_das] = CC_OSZAPC, |
| 3306 | dc99065b | bellard | [INDEX_op_daa] = CC_OSZAPC, |
| 3307 | dc99065b | bellard | |
| 3308 | dc99065b | bellard | [INDEX_op_movb_eflags_T0] = CC_S | CC_Z | CC_A | CC_P | CC_C, |
| 3309 | dc99065b | bellard | [INDEX_op_movl_eflags_T0] = CC_OSZAPC, |
| 3310 | dc99065b | bellard | [INDEX_op_clc] = CC_C, |
| 3311 | dc99065b | bellard | [INDEX_op_stc] = CC_C, |
| 3312 | dc99065b | bellard | [INDEX_op_cmc] = CC_C, |
| 3313 | dc99065b | bellard | |
| 3314 | dc99065b | bellard | [INDEX_op_rolb_T0_T1_cc] = CC_O | CC_C, |
| 3315 | dc99065b | bellard | [INDEX_op_rolw_T0_T1_cc] = CC_O | CC_C, |
| 3316 | dc99065b | bellard | [INDEX_op_roll_T0_T1_cc] = CC_O | CC_C, |
| 3317 | dc99065b | bellard | [INDEX_op_rorb_T0_T1_cc] = CC_O | CC_C, |
| 3318 | dc99065b | bellard | [INDEX_op_rorw_T0_T1_cc] = CC_O | CC_C, |
| 3319 | dc99065b | bellard | [INDEX_op_rorl_T0_T1_cc] = CC_O | CC_C, |
| 3320 | dc99065b | bellard | |
| 3321 | dc99065b | bellard | [INDEX_op_rclb_T0_T1_cc] = CC_O | CC_C, |
| 3322 | dc99065b | bellard | [INDEX_op_rclw_T0_T1_cc] = CC_O | CC_C, |
| 3323 | dc99065b | bellard | [INDEX_op_rcll_T0_T1_cc] = CC_O | CC_C, |
| 3324 | dc99065b | bellard | [INDEX_op_rcrb_T0_T1_cc] = CC_O | CC_C, |
| 3325 | dc99065b | bellard | [INDEX_op_rcrw_T0_T1_cc] = CC_O | CC_C, |
| 3326 | dc99065b | bellard | [INDEX_op_rcrl_T0_T1_cc] = CC_O | CC_C, |
| 3327 | dc99065b | bellard | |
| 3328 | dc99065b | bellard | [INDEX_op_shlb_T0_T1_cc] = CC_OSZAPC, |
| 3329 | dc99065b | bellard | [INDEX_op_shlw_T0_T1_cc] = CC_OSZAPC, |
| 3330 | dc99065b | bellard | [INDEX_op_shll_T0_T1_cc] = CC_OSZAPC, |
| 3331 | dc99065b | bellard | |
| 3332 | dc99065b | bellard | [INDEX_op_shrb_T0_T1_cc] = CC_OSZAPC, |
| 3333 | dc99065b | bellard | [INDEX_op_shrw_T0_T1_cc] = CC_OSZAPC, |
| 3334 | dc99065b | bellard | [INDEX_op_shrl_T0_T1_cc] = CC_OSZAPC, |
| 3335 | dc99065b | bellard | |
| 3336 | dc99065b | bellard | [INDEX_op_sarb_T0_T1_cc] = CC_OSZAPC, |
| 3337 | dc99065b | bellard | [INDEX_op_sarw_T0_T1_cc] = CC_OSZAPC, |
| 3338 | dc99065b | bellard | [INDEX_op_sarl_T0_T1_cc] = CC_OSZAPC, |
| 3339 | dc99065b | bellard | |
| 3340 | dc99065b | bellard | [INDEX_op_shldw_T0_T1_ECX_cc] = CC_OSZAPC, |
| 3341 | dc99065b | bellard | [INDEX_op_shldl_T0_T1_ECX_cc] = CC_OSZAPC, |
| 3342 | dc99065b | bellard | [INDEX_op_shldw_T0_T1_im_cc] = CC_OSZAPC, |
| 3343 | dc99065b | bellard | [INDEX_op_shldl_T0_T1_im_cc] = CC_OSZAPC, |
| 3344 | dc99065b | bellard | |
| 3345 | dc99065b | bellard | [INDEX_op_shrdw_T0_T1_ECX_cc] = CC_OSZAPC, |
| 3346 | dc99065b | bellard | [INDEX_op_shrdl_T0_T1_ECX_cc] = CC_OSZAPC, |
| 3347 | dc99065b | bellard | [INDEX_op_shrdw_T0_T1_im_cc] = CC_OSZAPC, |
| 3348 | dc99065b | bellard | [INDEX_op_shrdl_T0_T1_im_cc] = CC_OSZAPC, |
| 3349 | dc99065b | bellard | |
| 3350 | dc99065b | bellard | [INDEX_op_btw_T0_T1_cc] = CC_OSZAPC, |
| 3351 | dc99065b | bellard | [INDEX_op_btl_T0_T1_cc] = CC_OSZAPC, |
| 3352 | dc99065b | bellard | [INDEX_op_btsw_T0_T1_cc] = CC_OSZAPC, |
| 3353 | dc99065b | bellard | [INDEX_op_btsl_T0_T1_cc] = CC_OSZAPC, |
| 3354 | dc99065b | bellard | [INDEX_op_btrw_T0_T1_cc] = CC_OSZAPC, |
| 3355 | dc99065b | bellard | [INDEX_op_btrl_T0_T1_cc] = CC_OSZAPC, |
| 3356 | dc99065b | bellard | [INDEX_op_btcw_T0_T1_cc] = CC_OSZAPC, |
| 3357 | dc99065b | bellard | [INDEX_op_btcl_T0_T1_cc] = CC_OSZAPC, |
| 3358 | dc99065b | bellard | |
| 3359 | dc99065b | bellard | [INDEX_op_bsfw_T0_cc] = CC_OSZAPC, |
| 3360 | dc99065b | bellard | [INDEX_op_bsfl_T0_cc] = CC_OSZAPC, |
| 3361 | dc99065b | bellard | [INDEX_op_bsrw_T0_cc] = CC_OSZAPC, |
| 3362 | dc99065b | bellard | [INDEX_op_bsrl_T0_cc] = CC_OSZAPC, |
| 3363 | dc99065b | bellard | |
| 3364 | dc99065b | bellard | [INDEX_op_scasb] = CC_OSZAPC, |
| 3365 | dc99065b | bellard | [INDEX_op_scasw] = CC_OSZAPC, |
| 3366 | dc99065b | bellard | [INDEX_op_scasl] = CC_OSZAPC, |
| 3367 | dc99065b | bellard | [INDEX_op_repz_scasb] = CC_OSZAPC, |
| 3368 | dc99065b | bellard | [INDEX_op_repz_scasw] = CC_OSZAPC, |
| 3369 | dc99065b | bellard | [INDEX_op_repz_scasl] = CC_OSZAPC, |
| 3370 | dc99065b | bellard | [INDEX_op_repnz_scasb] = CC_OSZAPC, |
| 3371 | dc99065b | bellard | [INDEX_op_repnz_scasw] = CC_OSZAPC, |
| 3372 | dc99065b | bellard | [INDEX_op_repnz_scasl] = CC_OSZAPC, |
| 3373 | dc99065b | bellard | |
| 3374 | dc99065b | bellard | [INDEX_op_cmpsb] = CC_OSZAPC, |
| 3375 | dc99065b | bellard | [INDEX_op_cmpsw] = CC_OSZAPC, |
| 3376 | dc99065b | bellard | [INDEX_op_cmpsl] = CC_OSZAPC, |
| 3377 | dc99065b | bellard | [INDEX_op_repz_cmpsb] = CC_OSZAPC, |
| 3378 | dc99065b | bellard | [INDEX_op_repz_cmpsw] = CC_OSZAPC, |
| 3379 | dc99065b | bellard | [INDEX_op_repz_cmpsl] = CC_OSZAPC, |
| 3380 | dc99065b | bellard | [INDEX_op_repnz_cmpsb] = CC_OSZAPC, |
| 3381 | dc99065b | bellard | [INDEX_op_repnz_cmpsw] = CC_OSZAPC, |
| 3382 | dc99065b | bellard | [INDEX_op_repnz_cmpsl] = CC_OSZAPC, |
| 3383 | dc99065b | bellard | |
| 3384 | dc99065b | bellard | [INDEX_op_cmpxchgw_T0_T1_EAX_cc] = CC_OSZAPC, |
| 3385 | dc99065b | bellard | [INDEX_op_cmpxchgl_T0_T1_EAX_cc] = CC_OSZAPC, |
| 3386 | dc99065b | bellard | }; |
| 3387 | dc99065b | bellard | |
| 3388 | dc99065b | bellard | /* simpler form of an operation if no flags need to be generated */
|
| 3389 | dc99065b | bellard | static uint16_t opc_simpler[NB_OPS] = {
|
| 3390 | dc99065b | bellard | [INDEX_op_addl_T0_T1_cc] = INDEX_op_addl_T0_T1, |
| 3391 | dc99065b | bellard | [INDEX_op_orl_T0_T1_cc] = INDEX_op_orl_T0_T1, |
| 3392 | dc99065b | bellard | [INDEX_op_andl_T0_T1_cc] = INDEX_op_andl_T0_T1, |
| 3393 | dc99065b | bellard | [INDEX_op_subl_T0_T1_cc] = INDEX_op_subl_T0_T1, |
| 3394 | dc99065b | bellard | [INDEX_op_xorl_T0_T1_cc] = INDEX_op_xorl_T0_T1, |
| 3395 | dc99065b | bellard | [INDEX_op_negl_T0_cc] = INDEX_op_negl_T0, |
| 3396 | dc99065b | bellard | [INDEX_op_incl_T0_cc] = INDEX_op_incl_T0, |
| 3397 | dc99065b | bellard | [INDEX_op_decl_T0_cc] = INDEX_op_decl_T0, |
| 3398 | dc99065b | bellard | |
| 3399 | dc99065b | bellard | [INDEX_op_rolb_T0_T1_cc] = INDEX_op_rolb_T0_T1, |
| 3400 | dc99065b | bellard | [INDEX_op_rolw_T0_T1_cc] = INDEX_op_rolw_T0_T1, |
| 3401 | dc99065b | bellard | [INDEX_op_roll_T0_T1_cc] = INDEX_op_roll_T0_T1, |
| 3402 | dc99065b | bellard | |
| 3403 | dc99065b | bellard | [INDEX_op_rorb_T0_T1_cc] = INDEX_op_rorb_T0_T1, |
| 3404 | dc99065b | bellard | [INDEX_op_rorw_T0_T1_cc] = INDEX_op_rorw_T0_T1, |
| 3405 | dc99065b | bellard | [INDEX_op_rorl_T0_T1_cc] = INDEX_op_rorl_T0_T1, |
| 3406 | dc99065b | bellard | |
| 3407 | dc99065b | bellard | [INDEX_op_shlb_T0_T1_cc] = INDEX_op_shlb_T0_T1, |
| 3408 | dc99065b | bellard | [INDEX_op_shlw_T0_T1_cc] = INDEX_op_shlw_T0_T1, |
| 3409 | dc99065b | bellard | [INDEX_op_shll_T0_T1_cc] = INDEX_op_shll_T0_T1, |
| 3410 | dc99065b | bellard | |
| 3411 | dc99065b | bellard | [INDEX_op_shrb_T0_T1_cc] = INDEX_op_shrb_T0_T1, |
| 3412 | dc99065b | bellard | [INDEX_op_shrw_T0_T1_cc] = INDEX_op_shrw_T0_T1, |
| 3413 | dc99065b | bellard | [INDEX_op_shrl_T0_T1_cc] = INDEX_op_shrl_T0_T1, |
| 3414 | dc99065b | bellard | |
| 3415 | dc99065b | bellard | [INDEX_op_sarb_T0_T1_cc] = INDEX_op_sarb_T0_T1, |
| 3416 | dc99065b | bellard | [INDEX_op_sarw_T0_T1_cc] = INDEX_op_sarw_T0_T1, |
| 3417 | dc99065b | bellard | [INDEX_op_sarl_T0_T1_cc] = INDEX_op_sarl_T0_T1, |
| 3418 | dc99065b | bellard | }; |
| 3419 | dc99065b | bellard | |
| 3420 | dc99065b | bellard | static void optimize_flags_init(void) |
| 3421 | dc99065b | bellard | {
|
| 3422 | dc99065b | bellard | int i;
|
| 3423 | dc99065b | bellard | /* put default values in arrays */
|
| 3424 | dc99065b | bellard | for(i = 0; i < NB_OPS; i++) { |
| 3425 | dc99065b | bellard | if (opc_simpler[i] == 0) |
| 3426 | dc99065b | bellard | opc_simpler[i] = i; |
| 3427 | dc99065b | bellard | } |
| 3428 | dc99065b | bellard | } |
| 3429 | dc99065b | bellard | |
| 3430 | dc99065b | bellard | /* CPU flags computation optimization: we move backward thru the
|
| 3431 | dc99065b | bellard | generated code to see which flags are needed. The operation is
|
| 3432 | dc99065b | bellard | modified if suitable */
|
| 3433 | dc99065b | bellard | static void optimize_flags(uint16_t *opc_buf, int opc_buf_len) |
| 3434 | dc99065b | bellard | {
|
| 3435 | dc99065b | bellard | uint16_t *opc_ptr; |
| 3436 | dc99065b | bellard | int live_flags, write_flags, op;
|
| 3437 | dc99065b | bellard | |
| 3438 | dc99065b | bellard | opc_ptr = opc_buf + opc_buf_len; |
| 3439 | dc99065b | bellard | /* live_flags contains the flags needed by the next instructions
|
| 3440 | dc99065b | bellard | in the code. At the end of the bloc, we consider that all the
|
| 3441 | dc99065b | bellard | flags are live. */
|
| 3442 | dc99065b | bellard | live_flags = CC_OSZAPC; |
| 3443 | dc99065b | bellard | while (opc_ptr > opc_buf) {
|
| 3444 | dc99065b | bellard | op = *--opc_ptr; |
| 3445 | dc99065b | bellard | /* if none of the flags written by the instruction is used,
|
| 3446 | dc99065b | bellard | then we can try to find a simpler instruction */
|
| 3447 | dc99065b | bellard | write_flags = opc_write_flags[op]; |
| 3448 | dc99065b | bellard | if ((live_flags & write_flags) == 0) { |
| 3449 | dc99065b | bellard | *opc_ptr = opc_simpler[op]; |
| 3450 | dc99065b | bellard | } |
| 3451 | dc99065b | bellard | /* compute the live flags before the instruction */
|
| 3452 | dc99065b | bellard | live_flags &= ~write_flags; |
| 3453 | dc99065b | bellard | live_flags |= opc_read_flags[op]; |
| 3454 | dc99065b | bellard | } |
| 3455 | dc99065b | bellard | } |
| 3456 | dc99065b | bellard | |
| 3457 | dc99065b | bellard | |
| 3458 | dc99065b | bellard | #ifdef DEBUG_DISAS
|
| 3459 | dc99065b | bellard | static const char *op_str[] = { |
| 3460 | dc99065b | bellard | #define DEF(s) #s, |
| 3461 | dc99065b | bellard | #include "opc-i386.h" |
| 3462 | dc99065b | bellard | #undef DEF
|
| 3463 | dc99065b | bellard | }; |
| 3464 | dc99065b | bellard | |
| 3465 | dc99065b | bellard | static void dump_ops(const uint16_t *opc_buf) |
| 3466 | dc99065b | bellard | {
|
| 3467 | dc99065b | bellard | const uint16_t *opc_ptr;
|
| 3468 | dc99065b | bellard | int c;
|
| 3469 | dc99065b | bellard | opc_ptr = opc_buf; |
| 3470 | dc99065b | bellard | for(;;) {
|
| 3471 | dc99065b | bellard | c = *opc_ptr++; |
| 3472 | dc99065b | bellard | fprintf(logfile, "0x%04x: %s\n", opc_ptr - opc_buf - 1, op_str[c]); |
| 3473 | dc99065b | bellard | if (c == INDEX_op_end)
|
| 3474 | dc99065b | bellard | break;
|
| 3475 | dc99065b | bellard | } |
| 3476 | dc99065b | bellard | } |
| 3477 | dc99065b | bellard | |
| 3478 | dc99065b | bellard | #endif
|
| 3479 | dc99065b | bellard | |
| 3480 | dc99065b | bellard | /* XXX: make this buffer thread safe */
|
| 3481 | dc99065b | bellard | /* XXX: make safe guess about sizes */
|
| 3482 | dc99065b | bellard | #define MAX_OP_PER_INSTR 32 |
| 3483 | dc99065b | bellard | #define OPC_BUF_SIZE 512 |
| 3484 | dc99065b | bellard | #define OPC_MAX_SIZE (OPC_BUF_SIZE - MAX_OP_PER_INSTR)
|
| 3485 | dc99065b | bellard | |
| 3486 | dc99065b | bellard | #define OPPARAM_BUF_SIZE (OPC_BUF_SIZE * 3) |
| 3487 | dc99065b | bellard | |
| 3488 | dc99065b | bellard | static uint16_t gen_opc_buf[OPC_BUF_SIZE];
|
| 3489 | dc99065b | bellard | static uint32_t gen_opparam_buf[OPPARAM_BUF_SIZE];
|
| 3490 | dc99065b | bellard | |
| 3491 | 9de5e440 | bellard | /* return non zero if the very first instruction is invalid so that
|
| 3492 | 9de5e440 | bellard | the virtual CPU can trigger an exception. */
|
| 3493 | 1017ebe9 | bellard | int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size, |
| 3494 | dab2ed99 | bellard | int *gen_code_size_ptr,
|
| 3495 | dab2ed99 | bellard | uint8_t *pc_start, uint8_t *cs_base, int flags)
|
| 3496 | ba1c6e37 | bellard | {
|
| 3497 | ba1c6e37 | bellard | DisasContext dc1, *dc = &dc1; |
| 3498 | dc99065b | bellard | uint8_t *pc_ptr; |
| 3499 | dc99065b | bellard | uint16_t *gen_opc_end; |
| 3500 | 04369ff2 | bellard | int gen_code_size;
|
| 3501 | ba1c6e37 | bellard | long ret;
|
| 3502 | 0ecfa993 | bellard | #ifdef DEBUG_DISAS
|
| 3503 | 0ecfa993 | bellard | struct disassemble_info disasm_info;
|
| 3504 | 0ecfa993 | bellard | #endif
|
| 3505 | dc99065b | bellard | |
| 3506 | dc99065b | bellard | /* generate intermediate code */
|
| 3507 | dc99065b | bellard | |
| 3508 | 6dbad63e | bellard | dc->code32 = (flags >> GEN_FLAG_CODE32_SHIFT) & 1;
|
| 3509 | dab2ed99 | bellard | dc->ss32 = (flags >> GEN_FLAG_SS32_SHIFT) & 1;
|
| 3510 | 6dbad63e | bellard | dc->addseg = (flags >> GEN_FLAG_ADDSEG_SHIFT) & 1;
|
| 3511 | 6dbad63e | bellard | dc->f_st = (flags >> GEN_FLAG_ST_SHIFT) & 7;
|
| 3512 | ba1c6e37 | bellard | dc->cc_op = CC_OP_DYNAMIC; |
| 3513 | dab2ed99 | bellard | dc->cs_base = cs_base; |
| 3514 | dc99065b | bellard | |
| 3515 | dc99065b | bellard | gen_opc_ptr = gen_opc_buf; |
| 3516 | dc99065b | bellard | gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| 3517 | dc99065b | bellard | gen_opparam_ptr = gen_opparam_buf; |
| 3518 | 0ecfa993 | bellard | |
| 3519 | 6dbad63e | bellard | dc->is_jmp = 0;
|
| 3520 | 1017ebe9 | bellard | pc_ptr = pc_start; |
| 3521 | 1017ebe9 | bellard | do {
|
| 3522 | 6dbad63e | bellard | ret = disas_insn(dc, pc_ptr); |
| 3523 | 1a9353d2 | bellard | if (ret == -1) { |
| 3524 | 9de5e440 | bellard | /* we trigger an illegal instruction operation only if it
|
| 3525 | 9de5e440 | bellard | is the first instruction. Otherwise, we simply stop
|
| 3526 | 9de5e440 | bellard | generating the code just before it */
|
| 3527 | 9de5e440 | bellard | if (pc_ptr == pc_start)
|
| 3528 | 9de5e440 | bellard | return -1; |
| 3529 | 9de5e440 | bellard | else
|
| 3530 | 9de5e440 | bellard | break;
|
| 3531 | 1a9353d2 | bellard | } |
| 3532 | 1017ebe9 | bellard | pc_ptr = (void *)ret;
|
| 3533 | dc99065b | bellard | } while (!dc->is_jmp && gen_opc_ptr < gen_opc_end);
|
| 3534 | 0ecfa993 | bellard | /* we must store the eflags state if it is not already done */
|
| 3535 | 0ecfa993 | bellard | if (dc->cc_op != CC_OP_DYNAMIC)
|
| 3536 | 0ecfa993 | bellard | gen_op_set_cc_op(dc->cc_op); |
| 3537 | 6dbad63e | bellard | if (dc->is_jmp != 1) { |
| 3538 | 0ecfa993 | bellard | /* we add an additionnal jmp to update the simulated PC */
|
| 3539 | dab2ed99 | bellard | gen_op_jmp_im(ret - (unsigned long)dc->cs_base); |
| 3540 | 0ecfa993 | bellard | } |
| 3541 | dc99065b | bellard | *gen_opc_ptr = INDEX_op_end; |
| 3542 | 0ecfa993 | bellard | |
| 3543 | dc99065b | bellard | /* optimize flag computations */
|
| 3544 | 0ecfa993 | bellard | #ifdef DEBUG_DISAS
|
| 3545 | 586314f2 | bellard | if (loglevel) {
|
| 3546 | 0ecfa993 | bellard | uint8_t *pc; |
| 3547 | 0ecfa993 | bellard | int count;
|
| 3548 | 0ecfa993 | bellard | |
| 3549 | 1017ebe9 | bellard | INIT_DISASSEMBLE_INFO(disasm_info, logfile, fprintf); |
| 3550 | 1017ebe9 | bellard | #if 0
|
| 3551 | 1017ebe9 | bellard | disasm_info.flavour = bfd_get_flavour (abfd);
|
| 3552 | 1017ebe9 | bellard | disasm_info.arch = bfd_get_arch (abfd);
|
| 3553 | 1017ebe9 | bellard | disasm_info.mach = bfd_get_mach (abfd);
|
| 3554 | 1017ebe9 | bellard | #endif
|
| 3555 | 1017ebe9 | bellard | disasm_info.endian = BFD_ENDIAN_LITTLE; |
| 3556 | dab2ed99 | bellard | if (dc->code32)
|
| 3557 | dab2ed99 | bellard | disasm_info.mach = bfd_mach_i386_i386; |
| 3558 | dab2ed99 | bellard | else
|
| 3559 | dab2ed99 | bellard | disasm_info.mach = bfd_mach_i386_i8086; |
| 3560 | dc99065b | bellard | fprintf(logfile, "----------------\n");
|
| 3561 | 1017ebe9 | bellard | fprintf(logfile, "IN:\n");
|
| 3562 | 1017ebe9 | bellard | disasm_info.buffer = pc_start; |
| 3563 | 1017ebe9 | bellard | disasm_info.buffer_vma = (unsigned long)pc_start; |
| 3564 | 1017ebe9 | bellard | disasm_info.buffer_length = pc_ptr - pc_start; |
| 3565 | 1017ebe9 | bellard | pc = pc_start; |
| 3566 | 1017ebe9 | bellard | while (pc < pc_ptr) {
|
| 3567 | 1017ebe9 | bellard | fprintf(logfile, "0x%08lx: ", (long)pc); |
| 3568 | 1017ebe9 | bellard | count = print_insn_i386((unsigned long)pc, &disasm_info); |
| 3569 | 1017ebe9 | bellard | fprintf(logfile, "\n");
|
| 3570 | 1017ebe9 | bellard | pc += count; |
| 3571 | 1017ebe9 | bellard | } |
| 3572 | 1017ebe9 | bellard | fprintf(logfile, "\n");
|
| 3573 | 1017ebe9 | bellard | |
| 3574 | dc99065b | bellard | fprintf(logfile, "OP:\n");
|
| 3575 | dc99065b | bellard | dump_ops(gen_opc_buf); |
| 3576 | dc99065b | bellard | fprintf(logfile, "\n");
|
| 3577 | dc99065b | bellard | } |
| 3578 | dc99065b | bellard | #endif
|
| 3579 | dc99065b | bellard | |
| 3580 | dc99065b | bellard | /* optimize flag computations */
|
| 3581 | dc99065b | bellard | optimize_flags(gen_opc_buf, gen_opc_ptr - gen_opc_buf); |
| 3582 | dc99065b | bellard | |
| 3583 | dc99065b | bellard | #ifdef DEBUG_DISAS
|
| 3584 | dc99065b | bellard | if (loglevel) {
|
| 3585 | dc99065b | bellard | fprintf(logfile, "AFTER FLAGS OPT:\n");
|
| 3586 | dc99065b | bellard | dump_ops(gen_opc_buf); |
| 3587 | dc99065b | bellard | fprintf(logfile, "\n");
|
| 3588 | dc99065b | bellard | } |
| 3589 | dc99065b | bellard | #endif
|
| 3590 | dc99065b | bellard | |
| 3591 | dc99065b | bellard | /* generate machine code */
|
| 3592 | 04369ff2 | bellard | gen_code_size = dyngen_code(gen_code_buf, gen_opc_buf, gen_opparam_buf); |
| 3593 | 04369ff2 | bellard | flush_icache_range((unsigned long)gen_code_buf, (unsigned long)(gen_code_buf + gen_code_size)); |
| 3594 | 04369ff2 | bellard | *gen_code_size_ptr = gen_code_size; |
| 3595 | dc99065b | bellard | |
| 3596 | dc99065b | bellard | #ifdef DEBUG_DISAS
|
| 3597 | dc99065b | bellard | if (loglevel) {
|
| 3598 | dc99065b | bellard | uint8_t *pc; |
| 3599 | dc99065b | bellard | int count;
|
| 3600 | dc99065b | bellard | |
| 3601 | dab2ed99 | bellard | INIT_DISASSEMBLE_INFO(disasm_info, logfile, fprintf); |
| 3602 | dab2ed99 | bellard | #if 0
|
| 3603 | dab2ed99 | bellard | disasm_info.flavour = bfd_get_flavour (abfd);
|
| 3604 | dab2ed99 | bellard | disasm_info.arch = bfd_get_arch (abfd);
|
| 3605 | dab2ed99 | bellard | disasm_info.mach = bfd_get_mach (abfd);
|
| 3606 | dab2ed99 | bellard | #endif
|
| 3607 | dab2ed99 | bellard | #ifdef WORDS_BIGENDIAN
|
| 3608 | dab2ed99 | bellard | disasm_info.endian = BFD_ENDIAN_BIG; |
| 3609 | dab2ed99 | bellard | #else
|
| 3610 | dab2ed99 | bellard | disasm_info.endian = BFD_ENDIAN_LITTLE; |
| 3611 | dab2ed99 | bellard | #endif
|
| 3612 | dab2ed99 | bellard | disasm_info.mach = bfd_mach_i386_i386; |
| 3613 | dab2ed99 | bellard | |
| 3614 | 0ecfa993 | bellard | pc = gen_code_buf; |
| 3615 | 0ecfa993 | bellard | disasm_info.buffer = pc; |
| 3616 | 0ecfa993 | bellard | disasm_info.buffer_vma = (unsigned long)pc; |
| 3617 | 0ecfa993 | bellard | disasm_info.buffer_length = *gen_code_size_ptr; |
| 3618 | 0ecfa993 | bellard | fprintf(logfile, "OUT: [size=%d]\n", *gen_code_size_ptr);
|
| 3619 | dc99065b | bellard | while (pc < gen_code_buf + *gen_code_size_ptr) {
|
| 3620 | 0ecfa993 | bellard | fprintf(logfile, "0x%08lx: ", (long)pc); |
| 3621 | 0ecfa993 | bellard | count = print_insn_i386((unsigned long)pc, &disasm_info); |
| 3622 | 0ecfa993 | bellard | fprintf(logfile, "\n");
|
| 3623 | 0ecfa993 | bellard | pc += count; |
| 3624 | 0ecfa993 | bellard | } |
| 3625 | 0ecfa993 | bellard | fprintf(logfile, "\n");
|
| 3626 | 1b6b029e | bellard | fflush(logfile); |
| 3627 | 0ecfa993 | bellard | } |
| 3628 | 0ecfa993 | bellard | #endif
|
| 3629 | ba1c6e37 | bellard | return 0; |
| 3630 | ba1c6e37 | bellard | } |
| 3631 | ba1c6e37 | bellard | |
| 3632 | ba1c6e37 | bellard | CPUX86State *cpu_x86_init(void)
|
| 3633 | ba1c6e37 | bellard | {
|
| 3634 | ba1c6e37 | bellard | CPUX86State *env; |
| 3635 | ba1c6e37 | bellard | int i;
|
| 3636 | dc99065b | bellard | static int inited; |
| 3637 | ba1c6e37 | bellard | |
| 3638 | 7d13299d | bellard | cpu_x86_tblocks_init(); |
| 3639 | 7d13299d | bellard | |
| 3640 | ba1c6e37 | bellard | env = malloc(sizeof(CPUX86State));
|
| 3641 | ba1c6e37 | bellard | if (!env)
|
| 3642 | ba1c6e37 | bellard | return NULL; |
| 3643 | ba1c6e37 | bellard | memset(env, 0, sizeof(CPUX86State)); |
| 3644 | ba1c6e37 | bellard | /* basic FPU init */
|
| 3645 | ba1c6e37 | bellard | for(i = 0;i < 8; i++) |
| 3646 | ba1c6e37 | bellard | env->fptags[i] = 1;
|
| 3647 | ba1c6e37 | bellard | env->fpuc = 0x37f;
|
| 3648 | ba1c6e37 | bellard | /* flags setup */
|
| 3649 | 9de5e440 | bellard | env->eflags = 0;
|
| 3650 | dc99065b | bellard | |
| 3651 | dc99065b | bellard | /* init various static tables */
|
| 3652 | dc99065b | bellard | if (!inited) {
|
| 3653 | dc99065b | bellard | inited = 1;
|
| 3654 | dc99065b | bellard | optimize_flags_init(); |
| 3655 | dc99065b | bellard | } |
| 3656 | ba1c6e37 | bellard | return env;
|
| 3657 | ba1c6e37 | bellard | } |
| 3658 | ba1c6e37 | bellard | |
| 3659 | ba1c6e37 | bellard | void cpu_x86_close(CPUX86State *env)
|
| 3660 | ba1c6e37 | bellard | {
|
| 3661 | ba1c6e37 | bellard | free(env); |
| 3662 | ba1c6e37 | bellard | } |