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| 1 | 58fe2f10 | bellard | /*
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| 2 | 58fe2f10 | bellard | * i386 on i386 translation
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| 3 | 58fe2f10 | bellard | *
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| 4 | 58fe2f10 | bellard | * Copyright (c) 2003 Fabrice Bellard
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| 5 | 58fe2f10 | bellard | *
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| 6 | 58fe2f10 | bellard | * This library is free software; you can redistribute it and/or
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| 7 | 58fe2f10 | bellard | * modify it under the terms of the GNU Lesser General Public
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| 8 | 58fe2f10 | bellard | * License as published by the Free Software Foundation; either
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| 9 | 58fe2f10 | bellard | * version 2 of the License, or (at your option) any later version.
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| 10 | 58fe2f10 | bellard | *
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| 11 | 58fe2f10 | bellard | * This library is distributed in the hope that it will be useful,
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| 12 | 58fe2f10 | bellard | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | 58fe2f10 | bellard | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 14 | 58fe2f10 | bellard | * Lesser General Public License for more details.
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| 15 | 58fe2f10 | bellard | *
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| 16 | 58fe2f10 | bellard | * You should have received a copy of the GNU Lesser General Public
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| 17 | 58fe2f10 | bellard | * License along with this library; if not, write to the Free Software
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| 18 | 58fe2f10 | bellard | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 19 | 58fe2f10 | bellard | */
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| 20 | 67b915a5 | bellard | #include "config.h" |
| 21 | 67b915a5 | bellard | |
| 22 | 58fe2f10 | bellard | #include <stdarg.h> |
| 23 | 58fe2f10 | bellard | #include <stdlib.h> |
| 24 | 58fe2f10 | bellard | #include <stdio.h> |
| 25 | 58fe2f10 | bellard | #include <string.h> |
| 26 | 58fe2f10 | bellard | #include <inttypes.h> |
| 27 | 58fe2f10 | bellard | #include <assert.h> |
| 28 | 58fe2f10 | bellard | |
| 29 | 58fe2f10 | bellard | #include "cpu.h" |
| 30 | 58fe2f10 | bellard | #include "exec-all.h" |
| 31 | 58fe2f10 | bellard | #include "disas.h" |
| 32 | 58fe2f10 | bellard | |
| 33 | 42c3c0cc | bellard | #ifdef USE_CODE_COPY
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| 34 | 42c3c0cc | bellard | |
| 35 | 67b915a5 | bellard | #include <signal.h> |
| 36 | 67b915a5 | bellard | #include <sys/mman.h> |
| 37 | 67b915a5 | bellard | #include <sys/ucontext.h> |
| 38 | 67b915a5 | bellard | |
| 39 | 58fe2f10 | bellard | extern char exec_loop; |
| 40 | 58fe2f10 | bellard | |
| 41 | 58fe2f10 | bellard | /* operand size */
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| 42 | 58fe2f10 | bellard | enum {
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| 43 | 58fe2f10 | bellard | OT_BYTE = 0,
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| 44 | 58fe2f10 | bellard | OT_WORD, |
| 45 | 58fe2f10 | bellard | OT_LONG, |
| 46 | 58fe2f10 | bellard | OT_QUAD, |
| 47 | 58fe2f10 | bellard | }; |
| 48 | 58fe2f10 | bellard | |
| 49 | 58fe2f10 | bellard | #define PREFIX_REPZ 0x01 |
| 50 | 58fe2f10 | bellard | #define PREFIX_REPNZ 0x02 |
| 51 | 58fe2f10 | bellard | #define PREFIX_LOCK 0x04 |
| 52 | 58fe2f10 | bellard | #define PREFIX_DATA 0x08 |
| 53 | 58fe2f10 | bellard | #define PREFIX_ADR 0x10 |
| 54 | 58fe2f10 | bellard | |
| 55 | 58fe2f10 | bellard | typedef struct DisasContext { |
| 56 | 58fe2f10 | bellard | /* current insn context */
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| 57 | 58fe2f10 | bellard | int override; /* -1 if no override */ |
| 58 | 58fe2f10 | bellard | int prefix;
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| 59 | 58fe2f10 | bellard | int aflag, dflag;
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| 60 | 14ce26e7 | bellard | target_ulong pc; /* pc = eip + cs_base */
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| 61 | 58fe2f10 | bellard | int is_jmp; /* 1 = means jump (stop translation), 2 means CPU |
| 62 | 58fe2f10 | bellard | static state change (stop translation) */
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| 63 | 58fe2f10 | bellard | /* code output */
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| 64 | 58fe2f10 | bellard | uint8_t *gen_code_ptr; |
| 65 | 58fe2f10 | bellard | uint8_t *gen_code_start; |
| 66 | 58fe2f10 | bellard | |
| 67 | 58fe2f10 | bellard | /* current block context */
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| 68 | 14ce26e7 | bellard | target_ulong cs_base; /* base of CS segment */
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| 69 | 58fe2f10 | bellard | int pe; /* protected mode */ |
| 70 | 58fe2f10 | bellard | int code32; /* 32 bit code segment */ |
| 71 | 58fe2f10 | bellard | int f_st; /* currently unused */ |
| 72 | 58fe2f10 | bellard | int vm86; /* vm86 mode */ |
| 73 | 58fe2f10 | bellard | int cpl;
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| 74 | 58fe2f10 | bellard | int iopl;
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| 75 | 42c3c0cc | bellard | int flags;
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| 76 | 58fe2f10 | bellard | struct TranslationBlock *tb;
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| 77 | 58fe2f10 | bellard | } DisasContext; |
| 78 | 58fe2f10 | bellard | |
| 79 | 58fe2f10 | bellard | #define CPU_FIELD_OFFSET(field) offsetof(CPUState, field)
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| 80 | 58fe2f10 | bellard | |
| 81 | 58fe2f10 | bellard | #define CPU_SEG 0x64 /* fs override */ |
| 82 | 58fe2f10 | bellard | |
| 83 | 58fe2f10 | bellard | static inline void gb(DisasContext *s, uint32_t val) |
| 84 | 58fe2f10 | bellard | {
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| 85 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val; |
| 86 | 58fe2f10 | bellard | } |
| 87 | 58fe2f10 | bellard | |
| 88 | 58fe2f10 | bellard | static inline void gw(DisasContext *s, uint32_t val) |
| 89 | 58fe2f10 | bellard | {
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| 90 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val; |
| 91 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val >> 8;
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| 92 | 58fe2f10 | bellard | } |
| 93 | 58fe2f10 | bellard | |
| 94 | 58fe2f10 | bellard | static inline void gl(DisasContext *s, uint32_t val) |
| 95 | 58fe2f10 | bellard | {
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| 96 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val; |
| 97 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val >> 8;
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| 98 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val >> 16;
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| 99 | 58fe2f10 | bellard | *s->gen_code_ptr++ = val >> 24;
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| 100 | 58fe2f10 | bellard | } |
| 101 | 58fe2f10 | bellard | |
| 102 | 58fe2f10 | bellard | static inline void gjmp(DisasContext *s, long val) |
| 103 | 58fe2f10 | bellard | {
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| 104 | 58fe2f10 | bellard | gb(s, 0xe9); /* jmp */ |
| 105 | 58fe2f10 | bellard | gl(s, val - (long)(s->gen_code_ptr + 4)); |
| 106 | 58fe2f10 | bellard | } |
| 107 | 58fe2f10 | bellard | |
| 108 | 58fe2f10 | bellard | static inline void gen_movl_addr_im(DisasContext *s, |
| 109 | 58fe2f10 | bellard | uint32_t addr, uint32_t val) |
| 110 | 58fe2f10 | bellard | {
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| 111 | 58fe2f10 | bellard | gb(s, CPU_SEG); /* seg movl im, addr */
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| 112 | 58fe2f10 | bellard | gb(s, 0xc7);
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| 113 | 58fe2f10 | bellard | gb(s, 0x05);
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| 114 | 58fe2f10 | bellard | gl(s, addr); |
| 115 | 58fe2f10 | bellard | gl(s, val); |
| 116 | 58fe2f10 | bellard | } |
| 117 | 58fe2f10 | bellard | |
| 118 | 58fe2f10 | bellard | static inline void gen_movw_addr_im(DisasContext *s, |
| 119 | 58fe2f10 | bellard | uint32_t addr, uint32_t val) |
| 120 | 58fe2f10 | bellard | {
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| 121 | 58fe2f10 | bellard | gb(s, CPU_SEG); /* seg movl im, addr */
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| 122 | 58fe2f10 | bellard | gb(s, 0x66);
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| 123 | 58fe2f10 | bellard | gb(s, 0xc7);
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| 124 | 58fe2f10 | bellard | gb(s, 0x05);
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| 125 | 58fe2f10 | bellard | gl(s, addr); |
| 126 | 58fe2f10 | bellard | gw(s, val); |
| 127 | 58fe2f10 | bellard | } |
| 128 | 58fe2f10 | bellard | |
| 129 | 58fe2f10 | bellard | |
| 130 | 58fe2f10 | bellard | static void gen_jmp(DisasContext *s, uint32_t target_eip) |
| 131 | 58fe2f10 | bellard | {
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| 132 | 58fe2f10 | bellard | TranslationBlock *tb = s->tb; |
| 133 | 58fe2f10 | bellard | |
| 134 | 58fe2f10 | bellard | gb(s, 0xe9); /* jmp */ |
| 135 | 58fe2f10 | bellard | tb->tb_jmp_offset[0] = s->gen_code_ptr - s->gen_code_start;
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| 136 | 58fe2f10 | bellard | gl(s, 0);
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| 137 | 58fe2f10 | bellard | |
| 138 | 58fe2f10 | bellard | tb->tb_next_offset[0] = s->gen_code_ptr - s->gen_code_start;
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| 139 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(eip), target_eip); |
| 140 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(tmp0), (uint32_t)tb); |
| 141 | 58fe2f10 | bellard | gjmp(s, (long)&exec_loop);
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| 142 | 58fe2f10 | bellard | |
| 143 | 58fe2f10 | bellard | s->is_jmp = 1;
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| 144 | 58fe2f10 | bellard | } |
| 145 | 58fe2f10 | bellard | |
| 146 | 58fe2f10 | bellard | static void gen_jcc(DisasContext *s, int op, |
| 147 | 58fe2f10 | bellard | uint32_t target_eip, uint32_t next_eip) |
| 148 | 58fe2f10 | bellard | {
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| 149 | 58fe2f10 | bellard | TranslationBlock *tb = s->tb; |
| 150 | 58fe2f10 | bellard | |
| 151 | 58fe2f10 | bellard | gb(s, 0x0f); /* jcc */ |
| 152 | 58fe2f10 | bellard | gb(s, 0x80 + op);
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| 153 | 58fe2f10 | bellard | tb->tb_jmp_offset[0] = s->gen_code_ptr - s->gen_code_start;
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| 154 | 58fe2f10 | bellard | gl(s, 0);
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| 155 | 58fe2f10 | bellard | gb(s, 0xe9); /* jmp */ |
| 156 | 58fe2f10 | bellard | tb->tb_jmp_offset[1] = s->gen_code_ptr - s->gen_code_start;
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| 157 | 58fe2f10 | bellard | gl(s, 0);
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| 158 | 58fe2f10 | bellard | |
| 159 | 58fe2f10 | bellard | tb->tb_next_offset[0] = s->gen_code_ptr - s->gen_code_start;
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| 160 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(eip), target_eip); |
| 161 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(tmp0), (uint32_t)tb); |
| 162 | 58fe2f10 | bellard | gjmp(s, (long)&exec_loop);
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| 163 | 58fe2f10 | bellard | |
| 164 | 58fe2f10 | bellard | tb->tb_next_offset[1] = s->gen_code_ptr - s->gen_code_start;
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| 165 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(eip), next_eip); |
| 166 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(tmp0), (uint32_t)tb | 1);
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| 167 | 58fe2f10 | bellard | gjmp(s, (long)&exec_loop);
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| 168 | 58fe2f10 | bellard | |
| 169 | 58fe2f10 | bellard | s->is_jmp = 1;
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| 170 | 58fe2f10 | bellard | } |
| 171 | 58fe2f10 | bellard | |
| 172 | 58fe2f10 | bellard | static void gen_eob(DisasContext *s) |
| 173 | 58fe2f10 | bellard | {
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| 174 | 58fe2f10 | bellard | gen_movl_addr_im(s, CPU_FIELD_OFFSET(tmp0), 0);
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| 175 | 58fe2f10 | bellard | gjmp(s, (long)&exec_loop);
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| 176 | 58fe2f10 | bellard | |
| 177 | 58fe2f10 | bellard | s->is_jmp = 1;
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| 178 | 58fe2f10 | bellard | } |
| 179 | 58fe2f10 | bellard | |
| 180 | 58fe2f10 | bellard | static inline void gen_lea_modrm(DisasContext *s, int modrm) |
| 181 | 58fe2f10 | bellard | {
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| 182 | 58fe2f10 | bellard | int havesib;
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| 183 | 58fe2f10 | bellard | int base, disp;
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| 184 | 58fe2f10 | bellard | int index;
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| 185 | 58fe2f10 | bellard | int scale;
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| 186 | 58fe2f10 | bellard | int mod, rm, code;
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| 187 | 58fe2f10 | bellard | |
| 188 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 189 | 58fe2f10 | bellard | rm = modrm & 7;
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| 190 | 58fe2f10 | bellard | |
| 191 | 58fe2f10 | bellard | if (s->aflag) {
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| 192 | 58fe2f10 | bellard | |
| 193 | 58fe2f10 | bellard | havesib = 0;
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| 194 | 58fe2f10 | bellard | base = rm; |
| 195 | 58fe2f10 | bellard | index = 0;
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| 196 | 58fe2f10 | bellard | scale = 0;
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| 197 | 58fe2f10 | bellard | |
| 198 | 58fe2f10 | bellard | if (base == 4) { |
| 199 | 58fe2f10 | bellard | havesib = 1;
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| 200 | 58fe2f10 | bellard | code = ldub_code(s->pc++); |
| 201 | 58fe2f10 | bellard | scale = (code >> 6) & 3; |
| 202 | 58fe2f10 | bellard | index = (code >> 3) & 7; |
| 203 | 58fe2f10 | bellard | base = code & 7;
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| 204 | 58fe2f10 | bellard | } |
| 205 | 58fe2f10 | bellard | |
| 206 | 58fe2f10 | bellard | switch (mod) {
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| 207 | 58fe2f10 | bellard | case 0: |
| 208 | 58fe2f10 | bellard | if (base == 5) { |
| 209 | 58fe2f10 | bellard | base = -1;
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| 210 | 58fe2f10 | bellard | disp = ldl_code(s->pc); |
| 211 | 58fe2f10 | bellard | s->pc += 4;
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| 212 | 58fe2f10 | bellard | } else {
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| 213 | 58fe2f10 | bellard | disp = 0;
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| 214 | 58fe2f10 | bellard | } |
| 215 | 58fe2f10 | bellard | break;
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| 216 | 58fe2f10 | bellard | case 1: |
| 217 | 58fe2f10 | bellard | disp = (int8_t)ldub_code(s->pc++); |
| 218 | 58fe2f10 | bellard | break;
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| 219 | 58fe2f10 | bellard | default:
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| 220 | 58fe2f10 | bellard | case 2: |
| 221 | 58fe2f10 | bellard | disp = ldl_code(s->pc); |
| 222 | 58fe2f10 | bellard | s->pc += 4;
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| 223 | 58fe2f10 | bellard | break;
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| 224 | 58fe2f10 | bellard | } |
| 225 | 58fe2f10 | bellard | |
| 226 | 58fe2f10 | bellard | } else {
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| 227 | 58fe2f10 | bellard | switch (mod) {
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| 228 | 58fe2f10 | bellard | case 0: |
| 229 | 58fe2f10 | bellard | if (rm == 6) { |
| 230 | 58fe2f10 | bellard | disp = lduw_code(s->pc); |
| 231 | 58fe2f10 | bellard | s->pc += 2;
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| 232 | 58fe2f10 | bellard | } else {
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| 233 | 58fe2f10 | bellard | disp = 0;
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| 234 | 58fe2f10 | bellard | } |
| 235 | 58fe2f10 | bellard | break;
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| 236 | 58fe2f10 | bellard | case 1: |
| 237 | 58fe2f10 | bellard | disp = (int8_t)ldub_code(s->pc++); |
| 238 | 58fe2f10 | bellard | break;
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| 239 | 58fe2f10 | bellard | default:
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| 240 | 58fe2f10 | bellard | case 2: |
| 241 | 58fe2f10 | bellard | disp = lduw_code(s->pc); |
| 242 | 58fe2f10 | bellard | s->pc += 2;
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| 243 | 58fe2f10 | bellard | break;
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| 244 | 58fe2f10 | bellard | } |
| 245 | 58fe2f10 | bellard | } |
| 246 | 58fe2f10 | bellard | } |
| 247 | 58fe2f10 | bellard | |
| 248 | 58fe2f10 | bellard | static inline void parse_modrm(DisasContext *s, int modrm) |
| 249 | 58fe2f10 | bellard | {
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| 250 | 58fe2f10 | bellard | if ((modrm & 0xc0) != 0xc0) |
| 251 | 58fe2f10 | bellard | gen_lea_modrm(s, modrm); |
| 252 | 58fe2f10 | bellard | } |
| 253 | 58fe2f10 | bellard | |
| 254 | 58fe2f10 | bellard | static inline uint32_t insn_get(DisasContext *s, int ot) |
| 255 | 58fe2f10 | bellard | {
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| 256 | 58fe2f10 | bellard | uint32_t ret; |
| 257 | 58fe2f10 | bellard | |
| 258 | 58fe2f10 | bellard | switch(ot) {
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| 259 | 58fe2f10 | bellard | case OT_BYTE:
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| 260 | 58fe2f10 | bellard | ret = ldub_code(s->pc); |
| 261 | 58fe2f10 | bellard | s->pc++; |
| 262 | 58fe2f10 | bellard | break;
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| 263 | 58fe2f10 | bellard | case OT_WORD:
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| 264 | 58fe2f10 | bellard | ret = lduw_code(s->pc); |
| 265 | 58fe2f10 | bellard | s->pc += 2;
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| 266 | 58fe2f10 | bellard | break;
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| 267 | 58fe2f10 | bellard | default:
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| 268 | 58fe2f10 | bellard | case OT_LONG:
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| 269 | 58fe2f10 | bellard | ret = ldl_code(s->pc); |
| 270 | 58fe2f10 | bellard | s->pc += 4;
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| 271 | 58fe2f10 | bellard | break;
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| 272 | 58fe2f10 | bellard | } |
| 273 | 58fe2f10 | bellard | return ret;
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| 274 | 58fe2f10 | bellard | } |
| 275 | 58fe2f10 | bellard | |
| 276 | 58fe2f10 | bellard | /* convert one instruction. s->is_jmp is set if the translation must
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| 277 | 58fe2f10 | bellard | be stopped. */
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| 278 | 58fe2f10 | bellard | static int disas_insn(DisasContext *s) |
| 279 | 58fe2f10 | bellard | {
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| 280 | 14ce26e7 | bellard | target_ulong pc_start, pc_tmp, pc_start_insn; |
| 281 | 58fe2f10 | bellard | int b, prefixes, aflag, dflag, next_eip, val;
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| 282 | 58fe2f10 | bellard | int ot;
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| 283 | 42c3c0cc | bellard | int modrm, mod, op, rm;
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| 284 | 58fe2f10 | bellard | |
| 285 | 58fe2f10 | bellard | pc_start = s->pc; |
| 286 | 58fe2f10 | bellard | prefixes = 0;
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| 287 | 58fe2f10 | bellard | aflag = s->code32; |
| 288 | 58fe2f10 | bellard | dflag = s->code32; |
| 289 | 58fe2f10 | bellard | s->override = -1;
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| 290 | 58fe2f10 | bellard | next_byte:
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| 291 | 58fe2f10 | bellard | b = ldub_code(s->pc); |
| 292 | 58fe2f10 | bellard | s->pc++; |
| 293 | 58fe2f10 | bellard | /* check prefixes */
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| 294 | 58fe2f10 | bellard | switch (b) {
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| 295 | 58fe2f10 | bellard | case 0xf3: |
| 296 | 58fe2f10 | bellard | prefixes |= PREFIX_REPZ; |
| 297 | 58fe2f10 | bellard | goto next_byte;
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| 298 | 58fe2f10 | bellard | case 0xf2: |
| 299 | 58fe2f10 | bellard | prefixes |= PREFIX_REPNZ; |
| 300 | 58fe2f10 | bellard | goto next_byte;
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| 301 | 58fe2f10 | bellard | case 0xf0: |
| 302 | 58fe2f10 | bellard | prefixes |= PREFIX_LOCK; |
| 303 | 58fe2f10 | bellard | goto next_byte;
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| 304 | 58fe2f10 | bellard | case 0x2e: |
| 305 | 58fe2f10 | bellard | s->override = R_CS; |
| 306 | 58fe2f10 | bellard | goto next_byte;
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| 307 | 58fe2f10 | bellard | case 0x36: |
| 308 | 58fe2f10 | bellard | s->override = R_SS; |
| 309 | 58fe2f10 | bellard | goto next_byte;
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| 310 | 58fe2f10 | bellard | case 0x3e: |
| 311 | 58fe2f10 | bellard | s->override = R_DS; |
| 312 | 58fe2f10 | bellard | goto next_byte;
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| 313 | 58fe2f10 | bellard | case 0x26: |
| 314 | 58fe2f10 | bellard | s->override = R_ES; |
| 315 | 58fe2f10 | bellard | goto next_byte;
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| 316 | 58fe2f10 | bellard | case 0x64: |
| 317 | 58fe2f10 | bellard | s->override = R_FS; |
| 318 | 58fe2f10 | bellard | goto next_byte;
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| 319 | 58fe2f10 | bellard | case 0x65: |
| 320 | 58fe2f10 | bellard | s->override = R_GS; |
| 321 | 58fe2f10 | bellard | goto next_byte;
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| 322 | 58fe2f10 | bellard | case 0x66: |
| 323 | 58fe2f10 | bellard | prefixes |= PREFIX_DATA; |
| 324 | 58fe2f10 | bellard | goto next_byte;
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| 325 | 58fe2f10 | bellard | case 0x67: |
| 326 | 58fe2f10 | bellard | prefixes |= PREFIX_ADR; |
| 327 | 58fe2f10 | bellard | goto next_byte;
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| 328 | 58fe2f10 | bellard | } |
| 329 | 58fe2f10 | bellard | |
| 330 | 58fe2f10 | bellard | if (prefixes & PREFIX_DATA)
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| 331 | 58fe2f10 | bellard | dflag ^= 1;
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| 332 | 58fe2f10 | bellard | if (prefixes & PREFIX_ADR)
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| 333 | 58fe2f10 | bellard | aflag ^= 1;
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| 334 | 58fe2f10 | bellard | |
| 335 | 58fe2f10 | bellard | s->prefix = prefixes; |
| 336 | 58fe2f10 | bellard | s->aflag = aflag; |
| 337 | 58fe2f10 | bellard | s->dflag = dflag; |
| 338 | 58fe2f10 | bellard | |
| 339 | 58fe2f10 | bellard | /* lock generation */
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| 340 | 58fe2f10 | bellard | if (prefixes & PREFIX_LOCK)
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| 341 | 58fe2f10 | bellard | goto unsupported_op;
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| 342 | 58fe2f10 | bellard | if (s->override == R_FS || s->override == R_GS || s->override == R_CS)
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| 343 | 58fe2f10 | bellard | goto unsupported_op;
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| 344 | 58fe2f10 | bellard | |
| 345 | 58fe2f10 | bellard | pc_start_insn = s->pc - 1;
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| 346 | 58fe2f10 | bellard | /* now check op code */
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| 347 | 58fe2f10 | bellard | reswitch:
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| 348 | 58fe2f10 | bellard | switch(b) {
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| 349 | 58fe2f10 | bellard | case 0x0f: |
| 350 | 58fe2f10 | bellard | /**************************/
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| 351 | 58fe2f10 | bellard | /* extended op code */
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| 352 | 58fe2f10 | bellard | b = ldub_code(s->pc++) | 0x100;
|
| 353 | 58fe2f10 | bellard | goto reswitch;
|
| 354 | 58fe2f10 | bellard | |
| 355 | 58fe2f10 | bellard | /**************************/
|
| 356 | 58fe2f10 | bellard | /* arith & logic */
|
| 357 | 58fe2f10 | bellard | case 0x00 ... 0x05: |
| 358 | 58fe2f10 | bellard | case 0x08 ... 0x0d: |
| 359 | 58fe2f10 | bellard | case 0x10 ... 0x15: |
| 360 | 58fe2f10 | bellard | case 0x18 ... 0x1d: |
| 361 | 58fe2f10 | bellard | case 0x20 ... 0x25: |
| 362 | 58fe2f10 | bellard | case 0x28 ... 0x2d: |
| 363 | 58fe2f10 | bellard | case 0x30 ... 0x35: |
| 364 | 58fe2f10 | bellard | case 0x38 ... 0x3d: |
| 365 | 58fe2f10 | bellard | {
|
| 366 | 58fe2f10 | bellard | int f;
|
| 367 | 58fe2f10 | bellard | f = (b >> 1) & 3; |
| 368 | 58fe2f10 | bellard | |
| 369 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 370 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 371 | 58fe2f10 | bellard | else
|
| 372 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 373 | 58fe2f10 | bellard | |
| 374 | 58fe2f10 | bellard | switch(f) {
|
| 375 | 58fe2f10 | bellard | case 0: /* OP Ev, Gv */ |
| 376 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 377 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 378 | 58fe2f10 | bellard | break;
|
| 379 | 58fe2f10 | bellard | case 1: /* OP Gv, Ev */ |
| 380 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 381 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 382 | 58fe2f10 | bellard | break;
|
| 383 | 58fe2f10 | bellard | case 2: /* OP A, Iv */ |
| 384 | 58fe2f10 | bellard | insn_get(s, ot); |
| 385 | 58fe2f10 | bellard | break;
|
| 386 | 58fe2f10 | bellard | } |
| 387 | 58fe2f10 | bellard | } |
| 388 | 58fe2f10 | bellard | break;
|
| 389 | 58fe2f10 | bellard | |
| 390 | 58fe2f10 | bellard | case 0x80: /* GRP1 */ |
| 391 | 58fe2f10 | bellard | case 0x81: |
| 392 | d64477af | bellard | case 0x82: |
| 393 | 58fe2f10 | bellard | case 0x83: |
| 394 | 58fe2f10 | bellard | {
|
| 395 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 396 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 397 | 58fe2f10 | bellard | else
|
| 398 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 399 | 58fe2f10 | bellard | |
| 400 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 401 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 402 | 58fe2f10 | bellard | |
| 403 | 58fe2f10 | bellard | switch(b) {
|
| 404 | 58fe2f10 | bellard | default:
|
| 405 | 58fe2f10 | bellard | case 0x80: |
| 406 | 58fe2f10 | bellard | case 0x81: |
| 407 | d64477af | bellard | case 0x82: |
| 408 | 58fe2f10 | bellard | insn_get(s, ot); |
| 409 | 58fe2f10 | bellard | break;
|
| 410 | 58fe2f10 | bellard | case 0x83: |
| 411 | 58fe2f10 | bellard | insn_get(s, OT_BYTE); |
| 412 | 58fe2f10 | bellard | break;
|
| 413 | 58fe2f10 | bellard | } |
| 414 | 58fe2f10 | bellard | } |
| 415 | 58fe2f10 | bellard | break;
|
| 416 | 58fe2f10 | bellard | |
| 417 | 58fe2f10 | bellard | /**************************/
|
| 418 | 58fe2f10 | bellard | /* inc, dec, and other misc arith */
|
| 419 | 58fe2f10 | bellard | case 0x40 ... 0x47: /* inc Gv */ |
| 420 | 58fe2f10 | bellard | break;
|
| 421 | 58fe2f10 | bellard | case 0x48 ... 0x4f: /* dec Gv */ |
| 422 | 58fe2f10 | bellard | break;
|
| 423 | 58fe2f10 | bellard | case 0xf6: /* GRP3 */ |
| 424 | 58fe2f10 | bellard | case 0xf7: |
| 425 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 426 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 427 | 58fe2f10 | bellard | else
|
| 428 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 429 | 58fe2f10 | bellard | |
| 430 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 431 | 58fe2f10 | bellard | op = (modrm >> 3) & 7; |
| 432 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 433 | 58fe2f10 | bellard | |
| 434 | 58fe2f10 | bellard | switch(op) {
|
| 435 | 58fe2f10 | bellard | case 0: /* test */ |
| 436 | 58fe2f10 | bellard | insn_get(s, ot); |
| 437 | 58fe2f10 | bellard | break;
|
| 438 | 58fe2f10 | bellard | case 2: /* not */ |
| 439 | 58fe2f10 | bellard | break;
|
| 440 | 58fe2f10 | bellard | case 3: /* neg */ |
| 441 | 58fe2f10 | bellard | break;
|
| 442 | 58fe2f10 | bellard | case 4: /* mul */ |
| 443 | 58fe2f10 | bellard | break;
|
| 444 | 58fe2f10 | bellard | case 5: /* imul */ |
| 445 | 58fe2f10 | bellard | break;
|
| 446 | 58fe2f10 | bellard | case 6: /* div */ |
| 447 | 58fe2f10 | bellard | break;
|
| 448 | 58fe2f10 | bellard | case 7: /* idiv */ |
| 449 | 58fe2f10 | bellard | break;
|
| 450 | 58fe2f10 | bellard | default:
|
| 451 | 58fe2f10 | bellard | goto illegal_op;
|
| 452 | 58fe2f10 | bellard | } |
| 453 | 58fe2f10 | bellard | break;
|
| 454 | 58fe2f10 | bellard | |
| 455 | 58fe2f10 | bellard | case 0xfe: /* GRP4 */ |
| 456 | 58fe2f10 | bellard | case 0xff: /* GRP5 */ |
| 457 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 458 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 459 | 58fe2f10 | bellard | else
|
| 460 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 461 | 58fe2f10 | bellard | |
| 462 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 463 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 464 | 58fe2f10 | bellard | op = (modrm >> 3) & 7; |
| 465 | 58fe2f10 | bellard | if (op >= 2 && b == 0xfe) { |
| 466 | 58fe2f10 | bellard | goto illegal_op;
|
| 467 | 58fe2f10 | bellard | } |
| 468 | 58fe2f10 | bellard | pc_tmp = s->pc; |
| 469 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 470 | 58fe2f10 | bellard | |
| 471 | 58fe2f10 | bellard | switch(op) {
|
| 472 | 58fe2f10 | bellard | case 0: /* inc Ev */ |
| 473 | 58fe2f10 | bellard | break;
|
| 474 | 58fe2f10 | bellard | case 1: /* dec Ev */ |
| 475 | 58fe2f10 | bellard | break;
|
| 476 | 58fe2f10 | bellard | case 2: /* call Ev */ |
| 477 | 58fe2f10 | bellard | /* XXX: optimize and handle MEM exceptions specifically
|
| 478 | 58fe2f10 | bellard | fs movl %eax, regs[0]
|
| 479 | 58fe2f10 | bellard | movl Ev, %eax
|
| 480 | 58fe2f10 | bellard | pushl next_eip
|
| 481 | 58fe2f10 | bellard | fs movl %eax, eip
|
| 482 | 58fe2f10 | bellard | */
|
| 483 | 58fe2f10 | bellard | goto unsupported_op;
|
| 484 | 58fe2f10 | bellard | case 3: /* lcall Ev */ |
| 485 | 58fe2f10 | bellard | goto unsupported_op;
|
| 486 | 58fe2f10 | bellard | case 4: /* jmp Ev */ |
| 487 | 58fe2f10 | bellard | /* XXX: optimize and handle MEM exceptions specifically
|
| 488 | 58fe2f10 | bellard | fs movl %eax, regs[0]
|
| 489 | 58fe2f10 | bellard | movl Ev, %eax
|
| 490 | 58fe2f10 | bellard | fs movl %eax, eip
|
| 491 | 58fe2f10 | bellard | */
|
| 492 | 58fe2f10 | bellard | goto unsupported_op;
|
| 493 | 58fe2f10 | bellard | case 5: /* ljmp Ev */ |
| 494 | 58fe2f10 | bellard | goto unsupported_op;
|
| 495 | 58fe2f10 | bellard | case 6: /* push Ev */ |
| 496 | 58fe2f10 | bellard | break;
|
| 497 | 58fe2f10 | bellard | default:
|
| 498 | 58fe2f10 | bellard | goto illegal_op;
|
| 499 | 58fe2f10 | bellard | } |
| 500 | 58fe2f10 | bellard | break;
|
| 501 | 58fe2f10 | bellard | case 0xa8: /* test eAX, Iv */ |
| 502 | 58fe2f10 | bellard | case 0xa9: |
| 503 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 504 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 505 | 58fe2f10 | bellard | else
|
| 506 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 507 | 58fe2f10 | bellard | insn_get(s, ot); |
| 508 | 58fe2f10 | bellard | break;
|
| 509 | 58fe2f10 | bellard | |
| 510 | 58fe2f10 | bellard | case 0x98: /* CWDE/CBW */ |
| 511 | 58fe2f10 | bellard | break;
|
| 512 | 58fe2f10 | bellard | case 0x99: /* CDQ/CWD */ |
| 513 | 58fe2f10 | bellard | break;
|
| 514 | 58fe2f10 | bellard | case 0x1af: /* imul Gv, Ev */ |
| 515 | 58fe2f10 | bellard | case 0x69: /* imul Gv, Ev, I */ |
| 516 | 58fe2f10 | bellard | case 0x6b: |
| 517 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 518 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 519 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 520 | 58fe2f10 | bellard | if (b == 0x69) { |
| 521 | 58fe2f10 | bellard | insn_get(s, ot); |
| 522 | 58fe2f10 | bellard | } else if (b == 0x6b) { |
| 523 | 58fe2f10 | bellard | insn_get(s, OT_BYTE); |
| 524 | 58fe2f10 | bellard | } else {
|
| 525 | 58fe2f10 | bellard | } |
| 526 | 58fe2f10 | bellard | break;
|
| 527 | 58fe2f10 | bellard | |
| 528 | 58fe2f10 | bellard | case 0x84: /* test Ev, Gv */ |
| 529 | 58fe2f10 | bellard | case 0x85: |
| 530 | 58fe2f10 | bellard | |
| 531 | 58fe2f10 | bellard | case 0x1c0: |
| 532 | 58fe2f10 | bellard | case 0x1c1: /* xadd Ev, Gv */ |
| 533 | 58fe2f10 | bellard | |
| 534 | 58fe2f10 | bellard | case 0x1b0: |
| 535 | 58fe2f10 | bellard | case 0x1b1: /* cmpxchg Ev, Gv */ |
| 536 | 58fe2f10 | bellard | |
| 537 | 58fe2f10 | bellard | case 0x8f: /* pop Ev */ |
| 538 | 58fe2f10 | bellard | |
| 539 | 58fe2f10 | bellard | case 0x88: |
| 540 | 58fe2f10 | bellard | case 0x89: /* mov Gv, Ev */ |
| 541 | 58fe2f10 | bellard | |
| 542 | 58fe2f10 | bellard | case 0x8a: |
| 543 | 58fe2f10 | bellard | case 0x8b: /* mov Ev, Gv */ |
| 544 | 58fe2f10 | bellard | |
| 545 | 58fe2f10 | bellard | case 0x1b6: /* movzbS Gv, Eb */ |
| 546 | 58fe2f10 | bellard | case 0x1b7: /* movzwS Gv, Eb */ |
| 547 | 58fe2f10 | bellard | case 0x1be: /* movsbS Gv, Eb */ |
| 548 | 58fe2f10 | bellard | case 0x1bf: /* movswS Gv, Eb */ |
| 549 | 58fe2f10 | bellard | |
| 550 | 58fe2f10 | bellard | case 0x86: |
| 551 | 58fe2f10 | bellard | case 0x87: /* xchg Ev, Gv */ |
| 552 | 58fe2f10 | bellard | |
| 553 | 58fe2f10 | bellard | case 0xd0: |
| 554 | 58fe2f10 | bellard | case 0xd1: /* shift Ev,1 */ |
| 555 | 58fe2f10 | bellard | |
| 556 | 58fe2f10 | bellard | case 0xd2: |
| 557 | 58fe2f10 | bellard | case 0xd3: /* shift Ev,cl */ |
| 558 | 58fe2f10 | bellard | |
| 559 | 58fe2f10 | bellard | case 0x1a5: /* shld cl */ |
| 560 | 58fe2f10 | bellard | case 0x1ad: /* shrd cl */ |
| 561 | 58fe2f10 | bellard | |
| 562 | 58fe2f10 | bellard | case 0x190 ... 0x19f: /* setcc Gv */ |
| 563 | 58fe2f10 | bellard | |
| 564 | 58fe2f10 | bellard | /* XXX: emulate cmov if not available ? */
|
| 565 | 58fe2f10 | bellard | case 0x140 ... 0x14f: /* cmov Gv, Ev */ |
| 566 | 58fe2f10 | bellard | |
| 567 | 58fe2f10 | bellard | case 0x1a3: /* bt Gv, Ev */ |
| 568 | 58fe2f10 | bellard | case 0x1ab: /* bts */ |
| 569 | 58fe2f10 | bellard | case 0x1b3: /* btr */ |
| 570 | 58fe2f10 | bellard | case 0x1bb: /* btc */ |
| 571 | 58fe2f10 | bellard | |
| 572 | 58fe2f10 | bellard | case 0x1bc: /* bsf */ |
| 573 | 58fe2f10 | bellard | case 0x1bd: /* bsr */ |
| 574 | 58fe2f10 | bellard | |
| 575 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 576 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 577 | 58fe2f10 | bellard | break;
|
| 578 | 58fe2f10 | bellard | |
| 579 | 58fe2f10 | bellard | case 0x1c7: /* cmpxchg8b */ |
| 580 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 581 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 582 | 58fe2f10 | bellard | if (mod == 3) |
| 583 | 58fe2f10 | bellard | goto illegal_op;
|
| 584 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 585 | 58fe2f10 | bellard | break;
|
| 586 | 58fe2f10 | bellard | |
| 587 | 58fe2f10 | bellard | /**************************/
|
| 588 | 58fe2f10 | bellard | /* push/pop */
|
| 589 | 58fe2f10 | bellard | case 0x50 ... 0x57: /* push */ |
| 590 | 58fe2f10 | bellard | case 0x58 ... 0x5f: /* pop */ |
| 591 | 58fe2f10 | bellard | case 0x60: /* pusha */ |
| 592 | 58fe2f10 | bellard | case 0x61: /* popa */ |
| 593 | 58fe2f10 | bellard | break;
|
| 594 | 58fe2f10 | bellard | |
| 595 | 58fe2f10 | bellard | case 0x68: /* push Iv */ |
| 596 | 58fe2f10 | bellard | case 0x6a: |
| 597 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 598 | 58fe2f10 | bellard | if (b == 0x68) |
| 599 | 58fe2f10 | bellard | insn_get(s, ot); |
| 600 | 58fe2f10 | bellard | else
|
| 601 | 58fe2f10 | bellard | insn_get(s, OT_BYTE); |
| 602 | 58fe2f10 | bellard | break;
|
| 603 | 58fe2f10 | bellard | case 0xc8: /* enter */ |
| 604 | 58fe2f10 | bellard | lduw_code(s->pc); |
| 605 | 58fe2f10 | bellard | s->pc += 2;
|
| 606 | 58fe2f10 | bellard | ldub_code(s->pc++); |
| 607 | 58fe2f10 | bellard | break;
|
| 608 | 58fe2f10 | bellard | case 0xc9: /* leave */ |
| 609 | 58fe2f10 | bellard | break;
|
| 610 | 58fe2f10 | bellard | |
| 611 | 58fe2f10 | bellard | case 0x06: /* push es */ |
| 612 | 58fe2f10 | bellard | case 0x0e: /* push cs */ |
| 613 | 58fe2f10 | bellard | case 0x16: /* push ss */ |
| 614 | 58fe2f10 | bellard | case 0x1e: /* push ds */ |
| 615 | 58fe2f10 | bellard | /* XXX: optimize:
|
| 616 | 58fe2f10 | bellard | push segs[n].selector
|
| 617 | 58fe2f10 | bellard | */
|
| 618 | 58fe2f10 | bellard | goto unsupported_op;
|
| 619 | 58fe2f10 | bellard | case 0x1a0: /* push fs */ |
| 620 | 58fe2f10 | bellard | case 0x1a8: /* push gs */ |
| 621 | 58fe2f10 | bellard | goto unsupported_op;
|
| 622 | 58fe2f10 | bellard | case 0x07: /* pop es */ |
| 623 | 58fe2f10 | bellard | case 0x17: /* pop ss */ |
| 624 | 58fe2f10 | bellard | case 0x1f: /* pop ds */ |
| 625 | 58fe2f10 | bellard | goto unsupported_op;
|
| 626 | 58fe2f10 | bellard | case 0x1a1: /* pop fs */ |
| 627 | 58fe2f10 | bellard | case 0x1a9: /* pop gs */ |
| 628 | 58fe2f10 | bellard | goto unsupported_op;
|
| 629 | 58fe2f10 | bellard | case 0x8e: /* mov seg, Gv */ |
| 630 | 58fe2f10 | bellard | /* XXX: optimize:
|
| 631 | 58fe2f10 | bellard | fs movl r, regs[]
|
| 632 | 58fe2f10 | bellard | movl segs[].selector, r
|
| 633 | 58fe2f10 | bellard | mov r, Gv
|
| 634 | 58fe2f10 | bellard | fs movl regs[], r
|
| 635 | 58fe2f10 | bellard | */
|
| 636 | 58fe2f10 | bellard | goto unsupported_op;
|
| 637 | 58fe2f10 | bellard | case 0x8c: /* mov Gv, seg */ |
| 638 | 58fe2f10 | bellard | goto unsupported_op;
|
| 639 | 58fe2f10 | bellard | case 0xc4: /* les Gv */ |
| 640 | 58fe2f10 | bellard | op = R_ES; |
| 641 | 58fe2f10 | bellard | goto do_lxx;
|
| 642 | 58fe2f10 | bellard | case 0xc5: /* lds Gv */ |
| 643 | 58fe2f10 | bellard | op = R_DS; |
| 644 | 58fe2f10 | bellard | goto do_lxx;
|
| 645 | 58fe2f10 | bellard | case 0x1b2: /* lss Gv */ |
| 646 | 58fe2f10 | bellard | op = R_SS; |
| 647 | 58fe2f10 | bellard | goto do_lxx;
|
| 648 | 58fe2f10 | bellard | case 0x1b4: /* lfs Gv */ |
| 649 | 58fe2f10 | bellard | op = R_FS; |
| 650 | 58fe2f10 | bellard | goto do_lxx;
|
| 651 | 58fe2f10 | bellard | case 0x1b5: /* lgs Gv */ |
| 652 | 58fe2f10 | bellard | op = R_GS; |
| 653 | 58fe2f10 | bellard | do_lxx:
|
| 654 | 58fe2f10 | bellard | goto unsupported_op;
|
| 655 | 58fe2f10 | bellard | /************************/
|
| 656 | 58fe2f10 | bellard | /* floats */
|
| 657 | 58fe2f10 | bellard | case 0xd8 ... 0xdf: |
| 658 | 42c3c0cc | bellard | #if 1 |
| 659 | 42c3c0cc | bellard | /* currently not stable enough */
|
| 660 | 42c3c0cc | bellard | goto unsupported_op;
|
| 661 | 42c3c0cc | bellard | #else
|
| 662 | 42c3c0cc | bellard | if (s->flags & (HF_EM_MASK | HF_TS_MASK))
|
| 663 | 42c3c0cc | bellard | goto unsupported_op;
|
| 664 | 42c3c0cc | bellard | #endif
|
| 665 | 42c3c0cc | bellard | #if 0
|
| 666 | 42c3c0cc | bellard | /* for testing FPU context switch */
|
| 667 | 42c3c0cc | bellard | {
|
| 668 | 42c3c0cc | bellard | static int count;
|
| 669 | 42c3c0cc | bellard | count = (count + 1) % 3;
|
| 670 | 42c3c0cc | bellard | if (count != 0)
|
| 671 | 42c3c0cc | bellard | goto unsupported_op;
|
| 672 | 42c3c0cc | bellard | }
|
| 673 | 42c3c0cc | bellard | #endif
|
| 674 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 675 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 676 | 58fe2f10 | bellard | rm = modrm & 7;
|
| 677 | 58fe2f10 | bellard | op = ((b & 7) << 3) | ((modrm >> 3) & 7); |
| 678 | 58fe2f10 | bellard | if (mod != 3) { |
| 679 | 58fe2f10 | bellard | /* memory op */
|
| 680 | 42c3c0cc | bellard | parse_modrm(s, modrm); |
| 681 | 58fe2f10 | bellard | switch(op) {
|
| 682 | 58fe2f10 | bellard | case 0x00 ... 0x07: /* fxxxs */ |
| 683 | 58fe2f10 | bellard | case 0x10 ... 0x17: /* fixxxl */ |
| 684 | 58fe2f10 | bellard | case 0x20 ... 0x27: /* fxxxl */ |
| 685 | 58fe2f10 | bellard | case 0x30 ... 0x37: /* fixxx */ |
| 686 | 58fe2f10 | bellard | break;
|
| 687 | 58fe2f10 | bellard | case 0x08: /* flds */ |
| 688 | 58fe2f10 | bellard | case 0x0a: /* fsts */ |
| 689 | 58fe2f10 | bellard | case 0x0b: /* fstps */ |
| 690 | 58fe2f10 | bellard | case 0x18: /* fildl */ |
| 691 | 58fe2f10 | bellard | case 0x1a: /* fistl */ |
| 692 | 58fe2f10 | bellard | case 0x1b: /* fistpl */ |
| 693 | 58fe2f10 | bellard | case 0x28: /* fldl */ |
| 694 | 58fe2f10 | bellard | case 0x2a: /* fstl */ |
| 695 | 58fe2f10 | bellard | case 0x2b: /* fstpl */ |
| 696 | 58fe2f10 | bellard | case 0x38: /* filds */ |
| 697 | 58fe2f10 | bellard | case 0x3a: /* fists */ |
| 698 | 58fe2f10 | bellard | case 0x3b: /* fistps */ |
| 699 | 58fe2f10 | bellard | case 0x0c: /* fldenv mem */ |
| 700 | 58fe2f10 | bellard | case 0x0d: /* fldcw mem */ |
| 701 | 58fe2f10 | bellard | case 0x0e: /* fnstenv mem */ |
| 702 | 58fe2f10 | bellard | case 0x0f: /* fnstcw mem */ |
| 703 | 58fe2f10 | bellard | case 0x1d: /* fldt mem */ |
| 704 | 58fe2f10 | bellard | case 0x1f: /* fstpt mem */ |
| 705 | 58fe2f10 | bellard | case 0x2c: /* frstor mem */ |
| 706 | 58fe2f10 | bellard | case 0x2e: /* fnsave mem */ |
| 707 | 58fe2f10 | bellard | case 0x2f: /* fnstsw mem */ |
| 708 | 58fe2f10 | bellard | case 0x3c: /* fbld */ |
| 709 | 58fe2f10 | bellard | case 0x3e: /* fbstp */ |
| 710 | 58fe2f10 | bellard | case 0x3d: /* fildll */ |
| 711 | 58fe2f10 | bellard | case 0x3f: /* fistpll */ |
| 712 | 58fe2f10 | bellard | break;
|
| 713 | 58fe2f10 | bellard | default:
|
| 714 | 58fe2f10 | bellard | goto illegal_op;
|
| 715 | 58fe2f10 | bellard | } |
| 716 | 58fe2f10 | bellard | } else {
|
| 717 | 58fe2f10 | bellard | /* register float ops */
|
| 718 | 58fe2f10 | bellard | switch(op) {
|
| 719 | 58fe2f10 | bellard | case 0x08: /* fld sti */ |
| 720 | 58fe2f10 | bellard | case 0x09: /* fxchg sti */ |
| 721 | 58fe2f10 | bellard | break;
|
| 722 | 58fe2f10 | bellard | case 0x0a: /* grp d9/2 */ |
| 723 | 58fe2f10 | bellard | switch(rm) {
|
| 724 | 58fe2f10 | bellard | case 0: /* fnop */ |
| 725 | 58fe2f10 | bellard | break;
|
| 726 | 58fe2f10 | bellard | default:
|
| 727 | 58fe2f10 | bellard | goto illegal_op;
|
| 728 | 58fe2f10 | bellard | } |
| 729 | 58fe2f10 | bellard | break;
|
| 730 | 58fe2f10 | bellard | case 0x0c: /* grp d9/4 */ |
| 731 | 58fe2f10 | bellard | switch(rm) {
|
| 732 | 58fe2f10 | bellard | case 0: /* fchs */ |
| 733 | 58fe2f10 | bellard | case 1: /* fabs */ |
| 734 | 58fe2f10 | bellard | case 4: /* ftst */ |
| 735 | 58fe2f10 | bellard | case 5: /* fxam */ |
| 736 | 58fe2f10 | bellard | break;
|
| 737 | 58fe2f10 | bellard | default:
|
| 738 | 58fe2f10 | bellard | goto illegal_op;
|
| 739 | 58fe2f10 | bellard | } |
| 740 | 58fe2f10 | bellard | break;
|
| 741 | 58fe2f10 | bellard | case 0x0d: /* grp d9/5 */ |
| 742 | 58fe2f10 | bellard | switch(rm) {
|
| 743 | 42c3c0cc | bellard | case 0: |
| 744 | 42c3c0cc | bellard | case 1: |
| 745 | 42c3c0cc | bellard | case 2: |
| 746 | 42c3c0cc | bellard | case 3: |
| 747 | 42c3c0cc | bellard | case 4: |
| 748 | 42c3c0cc | bellard | case 5: |
| 749 | 42c3c0cc | bellard | case 6: |
| 750 | 58fe2f10 | bellard | break;
|
| 751 | 58fe2f10 | bellard | default:
|
| 752 | 42c3c0cc | bellard | goto illegal_op;
|
| 753 | 58fe2f10 | bellard | } |
| 754 | 58fe2f10 | bellard | break;
|
| 755 | 42c3c0cc | bellard | case 0x0e: /* grp d9/6 */ |
| 756 | 42c3c0cc | bellard | break;
|
| 757 | 58fe2f10 | bellard | case 0x0f: /* grp d9/7 */ |
| 758 | 58fe2f10 | bellard | break;
|
| 759 | 58fe2f10 | bellard | case 0x00: case 0x01: case 0x04 ... 0x07: /* fxxx st, sti */ |
| 760 | 58fe2f10 | bellard | case 0x20: case 0x21: case 0x24 ... 0x27: /* fxxx sti, st */ |
| 761 | 58fe2f10 | bellard | case 0x30: case 0x31: case 0x34 ... 0x37: /* fxxxp sti, st */ |
| 762 | 58fe2f10 | bellard | break;
|
| 763 | 58fe2f10 | bellard | case 0x02: /* fcom */ |
| 764 | 58fe2f10 | bellard | break;
|
| 765 | 58fe2f10 | bellard | case 0x03: /* fcomp */ |
| 766 | 58fe2f10 | bellard | break;
|
| 767 | 58fe2f10 | bellard | case 0x15: /* da/5 */ |
| 768 | 58fe2f10 | bellard | switch(rm) {
|
| 769 | 58fe2f10 | bellard | case 1: /* fucompp */ |
| 770 | 58fe2f10 | bellard | break;
|
| 771 | 58fe2f10 | bellard | default:
|
| 772 | 58fe2f10 | bellard | goto illegal_op;
|
| 773 | 58fe2f10 | bellard | } |
| 774 | 58fe2f10 | bellard | break;
|
| 775 | 58fe2f10 | bellard | case 0x1c: |
| 776 | 58fe2f10 | bellard | switch(rm) {
|
| 777 | 58fe2f10 | bellard | case 0: /* feni (287 only, just do nop here) */ |
| 778 | 58fe2f10 | bellard | case 1: /* fdisi (287 only, just do nop here) */ |
| 779 | 42c3c0cc | bellard | goto unsupported_op;
|
| 780 | 58fe2f10 | bellard | case 2: /* fclex */ |
| 781 | 58fe2f10 | bellard | case 3: /* fninit */ |
| 782 | 58fe2f10 | bellard | case 4: /* fsetpm (287 only, just do nop here) */ |
| 783 | 58fe2f10 | bellard | break;
|
| 784 | 58fe2f10 | bellard | default:
|
| 785 | 58fe2f10 | bellard | goto illegal_op;
|
| 786 | 58fe2f10 | bellard | } |
| 787 | 58fe2f10 | bellard | break;
|
| 788 | 58fe2f10 | bellard | case 0x1d: /* fucomi */ |
| 789 | 58fe2f10 | bellard | break;
|
| 790 | 58fe2f10 | bellard | case 0x1e: /* fcomi */ |
| 791 | 58fe2f10 | bellard | break;
|
| 792 | 14ce26e7 | bellard | case 0x28: /* ffree sti */ |
| 793 | 14ce26e7 | bellard | break;
|
| 794 | 58fe2f10 | bellard | case 0x2a: /* fst sti */ |
| 795 | 58fe2f10 | bellard | break;
|
| 796 | 58fe2f10 | bellard | case 0x2b: /* fstp sti */ |
| 797 | 58fe2f10 | bellard | break;
|
| 798 | 58fe2f10 | bellard | case 0x2c: /* fucom st(i) */ |
| 799 | 58fe2f10 | bellard | break;
|
| 800 | 58fe2f10 | bellard | case 0x2d: /* fucomp st(i) */ |
| 801 | 58fe2f10 | bellard | break;
|
| 802 | 58fe2f10 | bellard | case 0x33: /* de/3 */ |
| 803 | 58fe2f10 | bellard | switch(rm) {
|
| 804 | 58fe2f10 | bellard | case 1: /* fcompp */ |
| 805 | 58fe2f10 | bellard | break;
|
| 806 | 58fe2f10 | bellard | default:
|
| 807 | 58fe2f10 | bellard | goto illegal_op;
|
| 808 | 58fe2f10 | bellard | } |
| 809 | 58fe2f10 | bellard | break;
|
| 810 | 58fe2f10 | bellard | case 0x3c: /* df/4 */ |
| 811 | 58fe2f10 | bellard | switch(rm) {
|
| 812 | 58fe2f10 | bellard | case 0: |
| 813 | 58fe2f10 | bellard | break;
|
| 814 | 58fe2f10 | bellard | default:
|
| 815 | 58fe2f10 | bellard | goto illegal_op;
|
| 816 | 58fe2f10 | bellard | } |
| 817 | 58fe2f10 | bellard | break;
|
| 818 | 58fe2f10 | bellard | case 0x3d: /* fucomip */ |
| 819 | 58fe2f10 | bellard | break;
|
| 820 | 58fe2f10 | bellard | case 0x3e: /* fcomip */ |
| 821 | 58fe2f10 | bellard | break;
|
| 822 | 58fe2f10 | bellard | case 0x10 ... 0x13: /* fcmovxx */ |
| 823 | 58fe2f10 | bellard | case 0x18 ... 0x1b: |
| 824 | 58fe2f10 | bellard | break;
|
| 825 | 58fe2f10 | bellard | default:
|
| 826 | 58fe2f10 | bellard | goto illegal_op;
|
| 827 | 58fe2f10 | bellard | } |
| 828 | 58fe2f10 | bellard | } |
| 829 | 42c3c0cc | bellard | s->tb->cflags |= CF_TB_FP_USED; |
| 830 | 58fe2f10 | bellard | break;
|
| 831 | 42c3c0cc | bellard | |
| 832 | 58fe2f10 | bellard | /**************************/
|
| 833 | 58fe2f10 | bellard | /* mov */
|
| 834 | 58fe2f10 | bellard | case 0xc6: |
| 835 | 58fe2f10 | bellard | case 0xc7: /* mov Ev, Iv */ |
| 836 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 837 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 838 | 58fe2f10 | bellard | else
|
| 839 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 840 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 841 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 842 | 58fe2f10 | bellard | insn_get(s, ot); |
| 843 | 58fe2f10 | bellard | break;
|
| 844 | 58fe2f10 | bellard | |
| 845 | 58fe2f10 | bellard | case 0x8d: /* lea */ |
| 846 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 847 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 848 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 849 | 58fe2f10 | bellard | if (mod == 3) |
| 850 | 58fe2f10 | bellard | goto illegal_op;
|
| 851 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 852 | 58fe2f10 | bellard | break;
|
| 853 | 58fe2f10 | bellard | |
| 854 | 58fe2f10 | bellard | case 0xa0: /* mov EAX, Ov */ |
| 855 | 58fe2f10 | bellard | case 0xa1: |
| 856 | 58fe2f10 | bellard | case 0xa2: /* mov Ov, EAX */ |
| 857 | 58fe2f10 | bellard | case 0xa3: |
| 858 | 58fe2f10 | bellard | if ((b & 1) == 0) |
| 859 | 58fe2f10 | bellard | ot = OT_BYTE; |
| 860 | 58fe2f10 | bellard | else
|
| 861 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 862 | 58fe2f10 | bellard | if (s->aflag)
|
| 863 | 58fe2f10 | bellard | insn_get(s, OT_LONG); |
| 864 | 58fe2f10 | bellard | else
|
| 865 | 58fe2f10 | bellard | insn_get(s, OT_WORD); |
| 866 | 58fe2f10 | bellard | break;
|
| 867 | 58fe2f10 | bellard | case 0xd7: /* xlat */ |
| 868 | 58fe2f10 | bellard | break;
|
| 869 | 58fe2f10 | bellard | case 0xb0 ... 0xb7: /* mov R, Ib */ |
| 870 | 58fe2f10 | bellard | insn_get(s, OT_BYTE); |
| 871 | 58fe2f10 | bellard | break;
|
| 872 | 58fe2f10 | bellard | case 0xb8 ... 0xbf: /* mov R, Iv */ |
| 873 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 874 | 58fe2f10 | bellard | insn_get(s, ot); |
| 875 | 58fe2f10 | bellard | break;
|
| 876 | 58fe2f10 | bellard | |
| 877 | 58fe2f10 | bellard | case 0x91 ... 0x97: /* xchg R, EAX */ |
| 878 | 58fe2f10 | bellard | break;
|
| 879 | 58fe2f10 | bellard | |
| 880 | 58fe2f10 | bellard | /************************/
|
| 881 | 58fe2f10 | bellard | /* shifts */
|
| 882 | 58fe2f10 | bellard | case 0xc0: |
| 883 | 58fe2f10 | bellard | case 0xc1: /* shift Ev,imm */ |
| 884 | 58fe2f10 | bellard | |
| 885 | 58fe2f10 | bellard | case 0x1a4: /* shld imm */ |
| 886 | 58fe2f10 | bellard | case 0x1ac: /* shrd imm */ |
| 887 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 888 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 889 | 58fe2f10 | bellard | ldub_code(s->pc++); |
| 890 | 58fe2f10 | bellard | break;
|
| 891 | 58fe2f10 | bellard | |
| 892 | 58fe2f10 | bellard | /************************/
|
| 893 | 58fe2f10 | bellard | /* string ops */
|
| 894 | 58fe2f10 | bellard | |
| 895 | 58fe2f10 | bellard | case 0xa4: /* movsS */ |
| 896 | 58fe2f10 | bellard | case 0xa5: |
| 897 | 58fe2f10 | bellard | break;
|
| 898 | 58fe2f10 | bellard | |
| 899 | 58fe2f10 | bellard | case 0xaa: /* stosS */ |
| 900 | 58fe2f10 | bellard | case 0xab: |
| 901 | 58fe2f10 | bellard | break;
|
| 902 | 58fe2f10 | bellard | |
| 903 | 58fe2f10 | bellard | case 0xac: /* lodsS */ |
| 904 | 58fe2f10 | bellard | case 0xad: |
| 905 | 58fe2f10 | bellard | break;
|
| 906 | 58fe2f10 | bellard | |
| 907 | 58fe2f10 | bellard | case 0xae: /* scasS */ |
| 908 | 58fe2f10 | bellard | case 0xaf: |
| 909 | 58fe2f10 | bellard | break;
|
| 910 | 58fe2f10 | bellard | |
| 911 | 58fe2f10 | bellard | case 0xa6: /* cmpsS */ |
| 912 | 58fe2f10 | bellard | case 0xa7: |
| 913 | 58fe2f10 | bellard | break;
|
| 914 | 58fe2f10 | bellard | |
| 915 | 58fe2f10 | bellard | case 0x6c: /* insS */ |
| 916 | 58fe2f10 | bellard | case 0x6d: |
| 917 | 58fe2f10 | bellard | goto unsupported_op;
|
| 918 | 58fe2f10 | bellard | |
| 919 | 58fe2f10 | bellard | case 0x6e: /* outsS */ |
| 920 | 58fe2f10 | bellard | case 0x6f: |
| 921 | 58fe2f10 | bellard | goto unsupported_op;
|
| 922 | 58fe2f10 | bellard | |
| 923 | 58fe2f10 | bellard | /************************/
|
| 924 | 58fe2f10 | bellard | /* port I/O */
|
| 925 | 58fe2f10 | bellard | case 0xe4: |
| 926 | 58fe2f10 | bellard | case 0xe5: |
| 927 | 58fe2f10 | bellard | goto unsupported_op;
|
| 928 | 58fe2f10 | bellard | |
| 929 | 58fe2f10 | bellard | case 0xe6: |
| 930 | 58fe2f10 | bellard | case 0xe7: |
| 931 | 58fe2f10 | bellard | goto unsupported_op;
|
| 932 | 58fe2f10 | bellard | |
| 933 | 58fe2f10 | bellard | case 0xec: |
| 934 | 58fe2f10 | bellard | case 0xed: |
| 935 | 58fe2f10 | bellard | goto unsupported_op;
|
| 936 | 58fe2f10 | bellard | |
| 937 | 58fe2f10 | bellard | case 0xee: |
| 938 | 58fe2f10 | bellard | case 0xef: |
| 939 | 58fe2f10 | bellard | goto unsupported_op;
|
| 940 | 58fe2f10 | bellard | |
| 941 | 58fe2f10 | bellard | /************************/
|
| 942 | 58fe2f10 | bellard | /* control */
|
| 943 | 58fe2f10 | bellard | #if 0
|
| 944 | 58fe2f10 | bellard | case 0xc2: /* ret im */
|
| 945 | 58fe2f10 | bellard | val = ldsw_code(s->pc);
|
| 946 | 58fe2f10 | bellard | s->pc += 2;
|
| 947 | 58fe2f10 | bellard | gen_pop_T0(s);
|
| 948 | 58fe2f10 | bellard | gen_stack_update(s, val + (2 << s->dflag));
|
| 949 | 58fe2f10 | bellard | if (s->dflag == 0)
|
| 950 | 58fe2f10 | bellard | gen_op_andl_T0_ffff();
|
| 951 | 58fe2f10 | bellard | gen_op_jmp_T0();
|
| 952 | 58fe2f10 | bellard | gen_eob(s);
|
| 953 | 58fe2f10 | bellard | break;
|
| 954 | 58fe2f10 | bellard | #endif
|
| 955 | 58fe2f10 | bellard | |
| 956 | 58fe2f10 | bellard | case 0xc3: /* ret */ |
| 957 | 58fe2f10 | bellard | gb(s, CPU_SEG); |
| 958 | 58fe2f10 | bellard | if (!s->dflag)
|
| 959 | 58fe2f10 | bellard | gb(s, 0x66); /* d16 */ |
| 960 | 58fe2f10 | bellard | gb(s, 0x8f); /* pop addr */ |
| 961 | 58fe2f10 | bellard | gb(s, 0x05);
|
| 962 | 58fe2f10 | bellard | gl(s, CPU_FIELD_OFFSET(eip)); |
| 963 | 58fe2f10 | bellard | if (!s->dflag) {
|
| 964 | 58fe2f10 | bellard | /* reset high bits of EIP */
|
| 965 | 58fe2f10 | bellard | gen_movw_addr_im(s, CPU_FIELD_OFFSET(eip) + 2, 0); |
| 966 | 58fe2f10 | bellard | } |
| 967 | 58fe2f10 | bellard | gen_eob(s); |
| 968 | 58fe2f10 | bellard | goto no_copy;
|
| 969 | 58fe2f10 | bellard | case 0xca: /* lret im */ |
| 970 | 58fe2f10 | bellard | case 0xcb: /* lret */ |
| 971 | 58fe2f10 | bellard | case 0xcf: /* iret */ |
| 972 | 58fe2f10 | bellard | case 0x9a: /* lcall im */ |
| 973 | 58fe2f10 | bellard | case 0xea: /* ljmp im */ |
| 974 | 58fe2f10 | bellard | goto unsupported_op;
|
| 975 | 58fe2f10 | bellard | |
| 976 | 58fe2f10 | bellard | case 0xe8: /* call im */ |
| 977 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 978 | 58fe2f10 | bellard | val = insn_get(s, ot); |
| 979 | 58fe2f10 | bellard | next_eip = s->pc - s->cs_base; |
| 980 | 58fe2f10 | bellard | val += next_eip; |
| 981 | 58fe2f10 | bellard | if (s->dflag) {
|
| 982 | 58fe2f10 | bellard | gb(s, 0x68); /* pushl imm */ |
| 983 | 58fe2f10 | bellard | gl(s, next_eip); |
| 984 | 58fe2f10 | bellard | } else {
|
| 985 | 58fe2f10 | bellard | gb(s, 0x66); /* pushw imm */ |
| 986 | 58fe2f10 | bellard | gb(s, 0x68);
|
| 987 | 58fe2f10 | bellard | gw(s, next_eip); |
| 988 | 58fe2f10 | bellard | val &= 0xffff;
|
| 989 | 58fe2f10 | bellard | } |
| 990 | 58fe2f10 | bellard | gen_jmp(s, val); |
| 991 | 58fe2f10 | bellard | goto no_copy;
|
| 992 | 58fe2f10 | bellard | case 0xe9: /* jmp */ |
| 993 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 994 | 58fe2f10 | bellard | val = insn_get(s, ot); |
| 995 | 58fe2f10 | bellard | val += s->pc - s->cs_base; |
| 996 | 58fe2f10 | bellard | if (s->dflag == 0) |
| 997 | 58fe2f10 | bellard | val = val & 0xffff;
|
| 998 | 58fe2f10 | bellard | gen_jmp(s, val); |
| 999 | 58fe2f10 | bellard | goto no_copy;
|
| 1000 | 58fe2f10 | bellard | case 0xeb: /* jmp Jb */ |
| 1001 | 58fe2f10 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 1002 | 58fe2f10 | bellard | val += s->pc - s->cs_base; |
| 1003 | 58fe2f10 | bellard | if (s->dflag == 0) |
| 1004 | 58fe2f10 | bellard | val = val & 0xffff;
|
| 1005 | 58fe2f10 | bellard | gen_jmp(s, val); |
| 1006 | 58fe2f10 | bellard | goto no_copy;
|
| 1007 | 58fe2f10 | bellard | case 0x70 ... 0x7f: /* jcc Jb */ |
| 1008 | 58fe2f10 | bellard | val = (int8_t)insn_get(s, OT_BYTE); |
| 1009 | 58fe2f10 | bellard | goto do_jcc;
|
| 1010 | 58fe2f10 | bellard | case 0x180 ... 0x18f: /* jcc Jv */ |
| 1011 | 58fe2f10 | bellard | if (dflag) {
|
| 1012 | 58fe2f10 | bellard | val = insn_get(s, OT_LONG); |
| 1013 | 58fe2f10 | bellard | } else {
|
| 1014 | 58fe2f10 | bellard | val = (int16_t)insn_get(s, OT_WORD); |
| 1015 | 58fe2f10 | bellard | } |
| 1016 | 58fe2f10 | bellard | do_jcc:
|
| 1017 | 58fe2f10 | bellard | next_eip = s->pc - s->cs_base; |
| 1018 | 58fe2f10 | bellard | val += next_eip; |
| 1019 | 58fe2f10 | bellard | if (s->dflag == 0) |
| 1020 | 58fe2f10 | bellard | val &= 0xffff;
|
| 1021 | 58fe2f10 | bellard | gen_jcc(s, b & 0xf, val, next_eip);
|
| 1022 | 58fe2f10 | bellard | goto no_copy;
|
| 1023 | 58fe2f10 | bellard | |
| 1024 | 58fe2f10 | bellard | /************************/
|
| 1025 | 58fe2f10 | bellard | /* flags */
|
| 1026 | 58fe2f10 | bellard | case 0x9c: /* pushf */ |
| 1027 | 58fe2f10 | bellard | /* XXX: put specific code ? */
|
| 1028 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1029 | 58fe2f10 | bellard | case 0x9d: /* popf */ |
| 1030 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1031 | 58fe2f10 | bellard | |
| 1032 | 58fe2f10 | bellard | case 0x9e: /* sahf */ |
| 1033 | 58fe2f10 | bellard | case 0x9f: /* lahf */ |
| 1034 | 58fe2f10 | bellard | case 0xf5: /* cmc */ |
| 1035 | 58fe2f10 | bellard | case 0xf8: /* clc */ |
| 1036 | 58fe2f10 | bellard | case 0xf9: /* stc */ |
| 1037 | 58fe2f10 | bellard | case 0xfc: /* cld */ |
| 1038 | 58fe2f10 | bellard | case 0xfd: /* std */ |
| 1039 | 58fe2f10 | bellard | break;
|
| 1040 | 58fe2f10 | bellard | |
| 1041 | 58fe2f10 | bellard | /************************/
|
| 1042 | 58fe2f10 | bellard | /* bit operations */
|
| 1043 | 58fe2f10 | bellard | case 0x1ba: /* bt/bts/btr/btc Gv, im */ |
| 1044 | 58fe2f10 | bellard | ot = dflag ? OT_LONG : OT_WORD; |
| 1045 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 1046 | 58fe2f10 | bellard | op = (modrm >> 3) & 7; |
| 1047 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 1048 | 58fe2f10 | bellard | /* load shift */
|
| 1049 | 58fe2f10 | bellard | ldub_code(s->pc++); |
| 1050 | 58fe2f10 | bellard | if (op < 4) |
| 1051 | 58fe2f10 | bellard | goto illegal_op;
|
| 1052 | 58fe2f10 | bellard | break;
|
| 1053 | 58fe2f10 | bellard | /************************/
|
| 1054 | 58fe2f10 | bellard | /* bcd */
|
| 1055 | 58fe2f10 | bellard | case 0x27: /* daa */ |
| 1056 | 58fe2f10 | bellard | break;
|
| 1057 | 58fe2f10 | bellard | case 0x2f: /* das */ |
| 1058 | 58fe2f10 | bellard | break;
|
| 1059 | 58fe2f10 | bellard | case 0x37: /* aaa */ |
| 1060 | 58fe2f10 | bellard | break;
|
| 1061 | 58fe2f10 | bellard | case 0x3f: /* aas */ |
| 1062 | 58fe2f10 | bellard | break;
|
| 1063 | 58fe2f10 | bellard | case 0xd4: /* aam */ |
| 1064 | 58fe2f10 | bellard | ldub_code(s->pc++); |
| 1065 | 58fe2f10 | bellard | break;
|
| 1066 | 58fe2f10 | bellard | case 0xd5: /* aad */ |
| 1067 | 58fe2f10 | bellard | ldub_code(s->pc++); |
| 1068 | 58fe2f10 | bellard | break;
|
| 1069 | 58fe2f10 | bellard | /************************/
|
| 1070 | 58fe2f10 | bellard | /* misc */
|
| 1071 | 58fe2f10 | bellard | case 0x90: /* nop */ |
| 1072 | 58fe2f10 | bellard | break;
|
| 1073 | 58fe2f10 | bellard | case 0x9b: /* fwait */ |
| 1074 | 42c3c0cc | bellard | if ((s->flags & (HF_MP_MASK | HF_TS_MASK)) ==
|
| 1075 | 42c3c0cc | bellard | (HF_MP_MASK | HF_TS_MASK)) {
|
| 1076 | 42c3c0cc | bellard | goto unsupported_op;
|
| 1077 | 42c3c0cc | bellard | } |
| 1078 | 58fe2f10 | bellard | break;
|
| 1079 | 58fe2f10 | bellard | case 0xcc: /* int3 */ |
| 1080 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1081 | 58fe2f10 | bellard | case 0xcd: /* int N */ |
| 1082 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1083 | 58fe2f10 | bellard | case 0xce: /* into */ |
| 1084 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1085 | 58fe2f10 | bellard | case 0xf1: /* icebp (undocumented, exits to external debugger) */ |
| 1086 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1087 | 58fe2f10 | bellard | case 0xfa: /* cli */ |
| 1088 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1089 | 58fe2f10 | bellard | case 0xfb: /* sti */ |
| 1090 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1091 | 58fe2f10 | bellard | case 0x62: /* bound */ |
| 1092 | 58fe2f10 | bellard | modrm = ldub_code(s->pc++); |
| 1093 | 58fe2f10 | bellard | mod = (modrm >> 6) & 3; |
| 1094 | 58fe2f10 | bellard | if (mod == 3) |
| 1095 | 58fe2f10 | bellard | goto illegal_op;
|
| 1096 | 58fe2f10 | bellard | parse_modrm(s, modrm); |
| 1097 | 58fe2f10 | bellard | break;
|
| 1098 | 58fe2f10 | bellard | case 0x1c8 ... 0x1cf: /* bswap reg */ |
| 1099 | 58fe2f10 | bellard | break;
|
| 1100 | 58fe2f10 | bellard | case 0xd6: /* salc */ |
| 1101 | 58fe2f10 | bellard | break;
|
| 1102 | 58fe2f10 | bellard | case 0xe0: /* loopnz */ |
| 1103 | 58fe2f10 | bellard | case 0xe1: /* loopz */ |
| 1104 | 58fe2f10 | bellard | case 0xe2: /* loop */ |
| 1105 | 58fe2f10 | bellard | case 0xe3: /* jecxz */ |
| 1106 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1107 | 58fe2f10 | bellard | |
| 1108 | 58fe2f10 | bellard | case 0x130: /* wrmsr */ |
| 1109 | 58fe2f10 | bellard | case 0x132: /* rdmsr */ |
| 1110 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1111 | 58fe2f10 | bellard | case 0x131: /* rdtsc */ |
| 1112 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1113 | 58fe2f10 | bellard | case 0x1a2: /* cpuid */ |
| 1114 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1115 | 58fe2f10 | bellard | case 0xf4: /* hlt */ |
| 1116 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1117 | 58fe2f10 | bellard | case 0x100: |
| 1118 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1119 | 58fe2f10 | bellard | case 0x101: |
| 1120 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1121 | 58fe2f10 | bellard | case 0x108: /* invd */ |
| 1122 | 58fe2f10 | bellard | case 0x109: /* wbinvd */ |
| 1123 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1124 | 58fe2f10 | bellard | case 0x63: /* arpl */ |
| 1125 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1126 | 58fe2f10 | bellard | case 0x102: /* lar */ |
| 1127 | 58fe2f10 | bellard | case 0x103: /* lsl */ |
| 1128 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1129 | 58fe2f10 | bellard | case 0x118: |
| 1130 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1131 | 58fe2f10 | bellard | case 0x120: /* mov reg, crN */ |
| 1132 | 58fe2f10 | bellard | case 0x122: /* mov crN, reg */ |
| 1133 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1134 | 58fe2f10 | bellard | case 0x121: /* mov reg, drN */ |
| 1135 | 58fe2f10 | bellard | case 0x123: /* mov drN, reg */ |
| 1136 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1137 | 58fe2f10 | bellard | case 0x106: /* clts */ |
| 1138 | 58fe2f10 | bellard | goto unsupported_op;
|
| 1139 | 58fe2f10 | bellard | default:
|
| 1140 | 58fe2f10 | bellard | goto illegal_op;
|
| 1141 | 58fe2f10 | bellard | } |
| 1142 | 58fe2f10 | bellard | |
| 1143 | 58fe2f10 | bellard | /* just copy the code */
|
| 1144 | 58fe2f10 | bellard | |
| 1145 | 58fe2f10 | bellard | /* no override yet */
|
| 1146 | 58fe2f10 | bellard | if (!s->dflag)
|
| 1147 | 58fe2f10 | bellard | gb(s, 0x66);
|
| 1148 | 58fe2f10 | bellard | if (!s->aflag)
|
| 1149 | 58fe2f10 | bellard | gb(s, 0x67);
|
| 1150 | 58fe2f10 | bellard | if (prefixes & PREFIX_REPZ)
|
| 1151 | 58fe2f10 | bellard | gb(s, 0xf3);
|
| 1152 | 58fe2f10 | bellard | else if (prefixes & PREFIX_REPNZ) |
| 1153 | 58fe2f10 | bellard | gb(s, 0xf2);
|
| 1154 | 58fe2f10 | bellard | {
|
| 1155 | 58fe2f10 | bellard | int len, i;
|
| 1156 | 58fe2f10 | bellard | len = s->pc - pc_start_insn; |
| 1157 | 58fe2f10 | bellard | for(i = 0; i < len; i++) { |
| 1158 | 58fe2f10 | bellard | *s->gen_code_ptr++ = ldub_code(pc_start_insn + i); |
| 1159 | 58fe2f10 | bellard | } |
| 1160 | 58fe2f10 | bellard | } |
| 1161 | 58fe2f10 | bellard | no_copy:
|
| 1162 | 58fe2f10 | bellard | return 0; |
| 1163 | 58fe2f10 | bellard | illegal_op:
|
| 1164 | 58fe2f10 | bellard | unsupported_op:
|
| 1165 | 58fe2f10 | bellard | /* fall back to slower code gen necessary */
|
| 1166 | 58fe2f10 | bellard | s->pc = pc_start; |
| 1167 | 58fe2f10 | bellard | return -1; |
| 1168 | 58fe2f10 | bellard | } |
| 1169 | 58fe2f10 | bellard | |
| 1170 | 58fe2f10 | bellard | #define GEN_CODE_MAX_SIZE 8192 |
| 1171 | 58fe2f10 | bellard | #define GEN_CODE_MAX_INSN_SIZE 512 |
| 1172 | 58fe2f10 | bellard | |
| 1173 | 58fe2f10 | bellard | static inline int gen_intermediate_code_internal(CPUState *env, |
| 1174 | 58fe2f10 | bellard | TranslationBlock *tb, |
| 1175 | 58fe2f10 | bellard | uint8_t *gen_code_ptr, |
| 1176 | 58fe2f10 | bellard | int *gen_code_size_ptr,
|
| 1177 | 58fe2f10 | bellard | int search_pc,
|
| 1178 | 58fe2f10 | bellard | uint8_t *tc_ptr) |
| 1179 | 58fe2f10 | bellard | {
|
| 1180 | 58fe2f10 | bellard | DisasContext dc1, *dc = &dc1; |
| 1181 | 14ce26e7 | bellard | target_ulong pc_insn, pc_start, cs_base; |
| 1182 | 14ce26e7 | bellard | uint8_t *gen_code_end; |
| 1183 | 58fe2f10 | bellard | int flags, ret;
|
| 1184 | 58fe2f10 | bellard | |
| 1185 | 58fe2f10 | bellard | if (env->nb_breakpoints > 0 || |
| 1186 | 58fe2f10 | bellard | env->singlestep_enabled) |
| 1187 | 58fe2f10 | bellard | return -1; |
| 1188 | 58fe2f10 | bellard | flags = tb->flags; |
| 1189 | 58fe2f10 | bellard | if (flags & (HF_TF_MASK | HF_ADDSEG_MASK |
|
| 1190 | 58fe2f10 | bellard | HF_SOFTMMU_MASK | HF_INHIBIT_IRQ_MASK)) |
| 1191 | 58fe2f10 | bellard | return -1; |
| 1192 | 58fe2f10 | bellard | if (!(flags & HF_SS32_MASK))
|
| 1193 | 58fe2f10 | bellard | return -1; |
| 1194 | d720b93d | bellard | if (tb->cflags & CF_SINGLE_INSN)
|
| 1195 | d720b93d | bellard | return -1; |
| 1196 | 58fe2f10 | bellard | gen_code_end = gen_code_ptr + |
| 1197 | 58fe2f10 | bellard | GEN_CODE_MAX_SIZE - GEN_CODE_MAX_INSN_SIZE; |
| 1198 | 58fe2f10 | bellard | dc->gen_code_ptr = gen_code_ptr; |
| 1199 | 58fe2f10 | bellard | dc->gen_code_start = gen_code_ptr; |
| 1200 | 58fe2f10 | bellard | |
| 1201 | 58fe2f10 | bellard | /* generate intermediate code */
|
| 1202 | 14ce26e7 | bellard | pc_start = tb->pc; |
| 1203 | 14ce26e7 | bellard | cs_base = tb->cs_base; |
| 1204 | 58fe2f10 | bellard | dc->pc = pc_start; |
| 1205 | 58fe2f10 | bellard | dc->cs_base = cs_base; |
| 1206 | 58fe2f10 | bellard | dc->pe = (flags >> HF_PE_SHIFT) & 1;
|
| 1207 | 58fe2f10 | bellard | dc->code32 = (flags >> HF_CS32_SHIFT) & 1;
|
| 1208 | 58fe2f10 | bellard | dc->f_st = 0;
|
| 1209 | 58fe2f10 | bellard | dc->vm86 = (flags >> VM_SHIFT) & 1;
|
| 1210 | 58fe2f10 | bellard | dc->cpl = (flags >> HF_CPL_SHIFT) & 3;
|
| 1211 | 58fe2f10 | bellard | dc->iopl = (flags >> IOPL_SHIFT) & 3;
|
| 1212 | 58fe2f10 | bellard | dc->tb = tb; |
| 1213 | 42c3c0cc | bellard | dc->flags = flags; |
| 1214 | 42c3c0cc | bellard | |
| 1215 | 58fe2f10 | bellard | dc->is_jmp = 0;
|
| 1216 | 58fe2f10 | bellard | |
| 1217 | 58fe2f10 | bellard | for(;;) {
|
| 1218 | 58fe2f10 | bellard | pc_insn = dc->pc; |
| 1219 | 58fe2f10 | bellard | ret = disas_insn(dc); |
| 1220 | 58fe2f10 | bellard | if (ret < 0) { |
| 1221 | 58fe2f10 | bellard | /* unsupported insn */
|
| 1222 | 58fe2f10 | bellard | if (dc->pc == pc_start) {
|
| 1223 | 58fe2f10 | bellard | /* if first instruction, signal that no copying was done */
|
| 1224 | 58fe2f10 | bellard | return -1; |
| 1225 | 58fe2f10 | bellard | } else {
|
| 1226 | 58fe2f10 | bellard | gen_jmp(dc, dc->pc - dc->cs_base); |
| 1227 | 58fe2f10 | bellard | dc->is_jmp = 1;
|
| 1228 | 58fe2f10 | bellard | } |
| 1229 | 58fe2f10 | bellard | } |
| 1230 | 58fe2f10 | bellard | if (search_pc) {
|
| 1231 | 58fe2f10 | bellard | /* search pc mode */
|
| 1232 | 58fe2f10 | bellard | if (tc_ptr < dc->gen_code_ptr) {
|
| 1233 | 58fe2f10 | bellard | env->eip = pc_insn - cs_base; |
| 1234 | 58fe2f10 | bellard | return 0; |
| 1235 | 58fe2f10 | bellard | } |
| 1236 | 58fe2f10 | bellard | } |
| 1237 | 58fe2f10 | bellard | /* stop translation if indicated */
|
| 1238 | 58fe2f10 | bellard | if (dc->is_jmp)
|
| 1239 | 58fe2f10 | bellard | break;
|
| 1240 | 58fe2f10 | bellard | /* if too long translation, stop generation */
|
| 1241 | 58fe2f10 | bellard | if (dc->gen_code_ptr >= gen_code_end ||
|
| 1242 | 58fe2f10 | bellard | (dc->pc - pc_start) >= (TARGET_PAGE_SIZE - 32)) {
|
| 1243 | 58fe2f10 | bellard | gen_jmp(dc, dc->pc - dc->cs_base); |
| 1244 | 58fe2f10 | bellard | break;
|
| 1245 | 58fe2f10 | bellard | } |
| 1246 | 58fe2f10 | bellard | } |
| 1247 | 58fe2f10 | bellard | |
| 1248 | 58fe2f10 | bellard | #ifdef DEBUG_DISAS
|
| 1249 | e19e89a5 | bellard | if (loglevel & CPU_LOG_TB_IN_ASM) {
|
| 1250 | 58fe2f10 | bellard | fprintf(logfile, "----------------\n");
|
| 1251 | 42c3c0cc | bellard | fprintf(logfile, "IN: COPY: %s fpu=%d\n",
|
| 1252 | 42c3c0cc | bellard | lookup_symbol(pc_start), |
| 1253 | 42c3c0cc | bellard | tb->cflags & CF_TB_FP_USED ? 1 : 0); |
| 1254 | 14ce26e7 | bellard | target_disas(logfile, pc_start, dc->pc - pc_start, !dc->code32); |
| 1255 | 58fe2f10 | bellard | fprintf(logfile, "\n");
|
| 1256 | 58fe2f10 | bellard | } |
| 1257 | 58fe2f10 | bellard | #endif
|
| 1258 | 58fe2f10 | bellard | |
| 1259 | 58fe2f10 | bellard | if (!search_pc) {
|
| 1260 | 58fe2f10 | bellard | *gen_code_size_ptr = dc->gen_code_ptr - dc->gen_code_start; |
| 1261 | 58fe2f10 | bellard | tb->size = dc->pc - pc_start; |
| 1262 | 42c3c0cc | bellard | tb->cflags |= CF_CODE_COPY; |
| 1263 | 58fe2f10 | bellard | return 0; |
| 1264 | 58fe2f10 | bellard | } else {
|
| 1265 | 58fe2f10 | bellard | return -1; |
| 1266 | 58fe2f10 | bellard | } |
| 1267 | 58fe2f10 | bellard | } |
| 1268 | 58fe2f10 | bellard | |
| 1269 | 58fe2f10 | bellard | /* generate code by just copying data. Return -1 if cannot generate
|
| 1270 | 58fe2f10 | bellard | any code. Return 0 if code was generated */
|
| 1271 | 58fe2f10 | bellard | int cpu_gen_code_copy(CPUState *env, TranslationBlock *tb,
|
| 1272 | 58fe2f10 | bellard | int max_code_size, int *gen_code_size_ptr) |
| 1273 | 58fe2f10 | bellard | {
|
| 1274 | 58fe2f10 | bellard | /* generate machine code */
|
| 1275 | 58fe2f10 | bellard | tb->tb_next_offset[0] = 0xffff; |
| 1276 | 58fe2f10 | bellard | tb->tb_next_offset[1] = 0xffff; |
| 1277 | 58fe2f10 | bellard | #ifdef USE_DIRECT_JUMP
|
| 1278 | 58fe2f10 | bellard | /* the following two entries are optional (only used for string ops) */
|
| 1279 | 58fe2f10 | bellard | tb->tb_jmp_offset[2] = 0xffff; |
| 1280 | 58fe2f10 | bellard | tb->tb_jmp_offset[3] = 0xffff; |
| 1281 | 58fe2f10 | bellard | #endif
|
| 1282 | 58fe2f10 | bellard | return gen_intermediate_code_internal(env, tb,
|
| 1283 | 58fe2f10 | bellard | tb->tc_ptr, gen_code_size_ptr, |
| 1284 | 58fe2f10 | bellard | 0, NULL); |
| 1285 | 58fe2f10 | bellard | } |
| 1286 | 58fe2f10 | bellard | |
| 1287 | 58fe2f10 | bellard | static uint8_t dummy_gen_code_buf[GEN_CODE_MAX_SIZE];
|
| 1288 | 58fe2f10 | bellard | |
| 1289 | 58fe2f10 | bellard | int cpu_restore_state_copy(TranslationBlock *tb,
|
| 1290 | 58fe2f10 | bellard | CPUState *env, unsigned long searched_pc, |
| 1291 | 58fe2f10 | bellard | void *puc)
|
| 1292 | 58fe2f10 | bellard | {
|
| 1293 | 58fe2f10 | bellard | struct ucontext *uc = puc;
|
| 1294 | 58fe2f10 | bellard | int ret, eflags;
|
| 1295 | 58fe2f10 | bellard | |
| 1296 | 58fe2f10 | bellard | /* find opc index corresponding to search_pc */
|
| 1297 | 58fe2f10 | bellard | if (searched_pc < (unsigned long)tb->tc_ptr) |
| 1298 | 58fe2f10 | bellard | return -1; |
| 1299 | 58fe2f10 | bellard | searched_pc = searched_pc - (long)tb->tc_ptr + (long)dummy_gen_code_buf; |
| 1300 | 58fe2f10 | bellard | ret = gen_intermediate_code_internal(env, tb, |
| 1301 | 58fe2f10 | bellard | dummy_gen_code_buf, NULL,
|
| 1302 | 58fe2f10 | bellard | 1, (uint8_t *)searched_pc);
|
| 1303 | 58fe2f10 | bellard | if (ret < 0) |
| 1304 | 58fe2f10 | bellard | return ret;
|
| 1305 | 58fe2f10 | bellard | /* restore all the CPU state from the CPU context from the
|
| 1306 | 42c3c0cc | bellard | signal. The FPU context stays in the host CPU. */
|
| 1307 | 58fe2f10 | bellard | |
| 1308 | 58fe2f10 | bellard | env->regs[R_EAX] = uc->uc_mcontext.gregs[REG_EAX]; |
| 1309 | 58fe2f10 | bellard | env->regs[R_ECX] = uc->uc_mcontext.gregs[REG_ECX]; |
| 1310 | 58fe2f10 | bellard | env->regs[R_EDX] = uc->uc_mcontext.gregs[REG_EDX]; |
| 1311 | 58fe2f10 | bellard | env->regs[R_EBX] = uc->uc_mcontext.gregs[REG_EBX]; |
| 1312 | 58fe2f10 | bellard | env->regs[R_ESP] = uc->uc_mcontext.gregs[REG_ESP]; |
| 1313 | 58fe2f10 | bellard | env->regs[R_EBP] = uc->uc_mcontext.gregs[REG_EBP]; |
| 1314 | 58fe2f10 | bellard | env->regs[R_ESI] = uc->uc_mcontext.gregs[REG_ESI]; |
| 1315 | 58fe2f10 | bellard | env->regs[R_EDI] = uc->uc_mcontext.gregs[REG_EDI]; |
| 1316 | 58fe2f10 | bellard | eflags = uc->uc_mcontext.gregs[REG_EFL]; |
| 1317 | 58fe2f10 | bellard | env->df = 1 - (2 * ((eflags >> 10) & 1)); |
| 1318 | 58fe2f10 | bellard | env->cc_src = eflags & (CC_O | CC_S | CC_Z | CC_A | CC_P | CC_C); |
| 1319 | 58fe2f10 | bellard | env->cc_op = CC_OP_EFLAGS; |
| 1320 | 58fe2f10 | bellard | return 0; |
| 1321 | 58fe2f10 | bellard | } |
| 1322 | 42c3c0cc | bellard | |
| 1323 | 42c3c0cc | bellard | #endif /* USE_CODE_COPY */ |