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qemu-android / qemu-android / f4892d440bd750a4468dcec0e65caa2105c97a93 / . / target-i386 / translate.c
blob: 032b0fdffc4e00861f90abaf8d4aca7adf9a5504 [file] [log] [blame]
/*
* i386 translation
*
* Copyright (c) 2003 Fabrice Bellard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include <signal.h>
#include "qemu/host-utils.h"
#include "cpu.h"
#include "disas/disas.h"
#include "tcg-op.h"
#include "helper.h"
#define GEN_HELPER 1
#include "helper.h"
#define PREFIX_REPZ 0x01
#define PREFIX_REPNZ 0x02
#define PREFIX_LOCK 0x04
#define PREFIX_DATA 0x08
#define PREFIX_ADR 0x10
#define PREFIX_VEX 0x20
#ifdef TARGET_X86_64
#define CODE64(s) ((s)->code64)
#define REX_X(s) ((s)->rex_x)
#define REX_B(s) ((s)->rex_b)
#else
#define CODE64(s) 0
#define REX_X(s) 0
#define REX_B(s) 0
#endif
#ifdef TARGET_X86_64
# define ctztl ctz64
# define clztl clz64
#else
# define ctztl ctz32
# define clztl clz32
#endif
//#define MACRO_TEST 1
/* global register indexes */
static TCGv_ptr cpu_env;
static TCGv cpu_A0;
static TCGv cpu_cc_dst, cpu_cc_src, cpu_cc_src2, cpu_cc_srcT;
static TCGv_i32 cpu_cc_op;
static TCGv cpu_regs[CPU_NB_REGS];
/* local temps */
static TCGv cpu_T[2];
/* local register indexes (only used inside old micro ops) */
static TCGv cpu_tmp0, cpu_tmp4;
static TCGv_ptr cpu_ptr0, cpu_ptr1;
static TCGv_i32 cpu_tmp2_i32, cpu_tmp3_i32;
static TCGv_i64 cpu_tmp1_i64;
static uint8_t gen_opc_cc_op[OPC_BUF_SIZE];
#include "exec/gen-icount.h"
#ifdef TARGET_X86_64
static int x86_64_hregs;
#endif
typedef struct DisasContext {
/* current insn context */
int override; /* -1 if no override */
int prefix;
TCGMemOp aflag;
TCGMemOp dflag;
target_ulong pc; /* pc = eip + cs_base */
int is_jmp; /* 1 = means jump (stop translation), 2 means CPU
static state change (stop translation) */
/* current block context */
target_ulong cs_base; /* base of CS segment */
int pe; /* protected mode */
int code32; /* 32 bit code segment */
#ifdef TARGET_X86_64
int lma; /* long mode active */
int code64; /* 64 bit code segment */
int rex_x, rex_b;
#endif
int vex_l; /* vex vector length */
int vex_v; /* vex vvvv register, without 1's compliment. */
int ss32; /* 32 bit stack segment */
CCOp cc_op; /* current CC operation */
bool cc_op_dirty;
int addseg; /* non zero if either DS/ES/SS have a non zero base */
int f_st; /* currently unused */
int vm86; /* vm86 mode */
int cpl;
int iopl;
int tf; /* TF cpu flag */
int singlestep_enabled; /* "hardware" single step enabled */
int jmp_opt; /* use direct block chaining for direct jumps */
int mem_index; /* select memory access functions */
uint64_t flags; /* all execution flags */
struct TranslationBlock *tb;
int popl_esp_hack; /* for correct popl with esp base handling */
int rip_offset; /* only used in x86_64, but left for simplicity */
int cpuid_features;
int cpuid_ext_features;
int cpuid_ext2_features;
int cpuid_ext3_features;
int cpuid_7_0_ebx_features;
} DisasContext;
static void gen_eob(DisasContext *s);
static void gen_jmp(DisasContext *s, target_ulong eip);
static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num);
static void gen_op(DisasContext *s1, int op, TCGMemOp ot, int d);
/* i386 arith/logic operations */
enum {
OP_ADDL,
OP_ORL,
OP_ADCL,
OP_SBBL,
OP_ANDL,
OP_SUBL,
OP_XORL,
OP_CMPL,
};
/* i386 shift ops */
enum {
OP_ROL,
OP_ROR,
OP_RCL,
OP_RCR,
OP_SHL,
OP_SHR,
OP_SHL1, /* undocumented */
OP_SAR = 7,
};
enum {
JCC_O,
JCC_B,
JCC_Z,
JCC_BE,
JCC_S,
JCC_P,
JCC_L,
JCC_LE,
};
enum {
/* I386 int registers */
OR_EAX, /* MUST be even numbered */
OR_ECX,
OR_EDX,
OR_EBX,
OR_ESP,
OR_EBP,
OR_ESI,
OR_EDI,
OR_TMP0 = 16, /* temporary operand register */
OR_TMP1,
OR_A0, /* temporary register used when doing address evaluation */
};
enum {
USES_CC_DST = 1,
USES_CC_SRC = 2,
USES_CC_SRC2 = 4,
USES_CC_SRCT = 8,
};
/* Bit set if the global variable is live after setting CC_OP to X. */
static const uint8_t cc_op_live[CC_OP_NB] = {
[CC_OP_DYNAMIC] = USES_CC_DST | USES_CC_SRC | USES_CC_SRC2,
[CC_OP_EFLAGS] = USES_CC_SRC,
[CC_OP_MULB ... CC_OP_MULQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_ADDB ... CC_OP_ADDQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_ADCB ... CC_OP_ADCQ] = USES_CC_DST | USES_CC_SRC | USES_CC_SRC2,
[CC_OP_SUBB ... CC_OP_SUBQ] = USES_CC_DST | USES_CC_SRC | USES_CC_SRCT,
[CC_OP_SBBB ... CC_OP_SBBQ] = USES_CC_DST | USES_CC_SRC | USES_CC_SRC2,
[CC_OP_LOGICB ... CC_OP_LOGICQ] = USES_CC_DST,
[CC_OP_INCB ... CC_OP_INCQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_DECB ... CC_OP_DECQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_SHLB ... CC_OP_SHLQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_SARB ... CC_OP_SARQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_BMILGB ... CC_OP_BMILGQ] = USES_CC_DST | USES_CC_SRC,
[CC_OP_ADCX] = USES_CC_DST | USES_CC_SRC,
[CC_OP_ADOX] = USES_CC_SRC | USES_CC_SRC2,
[CC_OP_ADCOX] = USES_CC_DST | USES_CC_SRC | USES_CC_SRC2,
[CC_OP_CLR] = 0,
};
static void set_cc_op(DisasContext *s, CCOp op)
{
int dead;
if (s->cc_op == op) {
return;
}
/* Discard CC computation that will no longer be used. */
dead = cc_op_live[s->cc_op] & ~cc_op_live[op];
if (dead & USES_CC_DST) {
tcg_gen_discard_tl(cpu_cc_dst);
}
if (dead & USES_CC_SRC) {
tcg_gen_discard_tl(cpu_cc_src);
}
if (dead & USES_CC_SRC2) {
tcg_gen_discard_tl(cpu_cc_src2);
}
if (dead & USES_CC_SRCT) {
tcg_gen_discard_tl(cpu_cc_srcT);
}
if (op == CC_OP_DYNAMIC) {
/* The DYNAMIC setting is translator only, and should never be
stored. Thus we always consider it clean. */
s->cc_op_dirty = false;
} else {
/* Discard any computed CC_OP value (see shifts). */
if (s->cc_op == CC_OP_DYNAMIC) {
tcg_gen_discard_i32(cpu_cc_op);
}
s->cc_op_dirty = true;
}
s->cc_op = op;
}
static void gen_update_cc_op(DisasContext *s)
{
if (s->cc_op_dirty) {
tcg_gen_movi_i32(cpu_cc_op, s->cc_op);
s->cc_op_dirty = false;
}
}
#ifdef TARGET_X86_64
#define NB_OP_SIZES 4
#else /* !TARGET_X86_64 */
#define NB_OP_SIZES 3
#endif /* !TARGET_X86_64 */
#if defined(HOST_WORDS_BIGENDIAN)
#define REG_B_OFFSET (sizeof(target_ulong) - 1)
#define REG_H_OFFSET (sizeof(target_ulong) - 2)
#define REG_W_OFFSET (sizeof(target_ulong) - 2)
#define REG_L_OFFSET (sizeof(target_ulong) - 4)
#define REG_LH_OFFSET (sizeof(target_ulong) - 8)
#else
#define REG_B_OFFSET 0
#define REG_H_OFFSET 1
#define REG_W_OFFSET 0
#define REG_L_OFFSET 0
#define REG_LH_OFFSET 4
#endif
/* In instruction encodings for byte register accesses the
* register number usually indicates "low 8 bits of register N";
* however there are some special cases where N 4..7 indicates
* [AH, CH, DH, BH], ie "bits 15..8 of register N-4". Return
* true for this special case, false otherwise.
*/
static inline bool byte_reg_is_xH(int reg)
{
if (reg < 4) {
return false;
}
#ifdef TARGET_X86_64
if (reg >= 8 || x86_64_hregs) {
return false;
}
#endif
return true;
}
/* Select the size of a push/pop operation. */
static inline TCGMemOp mo_pushpop(DisasContext *s, TCGMemOp ot)
{
if (CODE64(s)) {
return ot == MO_16 ? MO_16 : MO_64;
} else {
return ot;
}
}
/* Select only size 64 else 32. Used for SSE operand sizes. */
static inline TCGMemOp mo_64_32(TCGMemOp ot)
{
#ifdef TARGET_X86_64
return ot == MO_64 ? MO_64 : MO_32;
#else
return MO_32;
#endif
}
/* Select size 8 if lsb of B is clear, else OT. Used for decoding
byte vs word opcodes. */
static inline TCGMemOp mo_b_d(int b, TCGMemOp ot)
{
return b & 1 ? ot : MO_8;
}
/* Select size 8 if lsb of B is clear, else OT capped at 32.
Used for decoding operand size of port opcodes. */
static inline TCGMemOp mo_b_d32(int b, TCGMemOp ot)
{
return b & 1 ? (ot == MO_16 ? MO_16 : MO_32) : MO_8;
}
static void gen_op_mov_reg_v(TCGMemOp ot, int reg, TCGv t0)
{
switch(ot) {
case MO_8:
if (!byte_reg_is_xH(reg)) {
tcg_gen_deposit_tl(cpu_regs[reg], cpu_regs[reg], t0, 0, 8);
} else {
tcg_gen_deposit_tl(cpu_regs[reg - 4], cpu_regs[reg - 4], t0, 8, 8);
}
break;
case MO_16:
tcg_gen_deposit_tl(cpu_regs[reg], cpu_regs[reg], t0, 0, 16);
break;
case MO_32:
/* For x86_64, this sets the higher half of register to zero.
For i386, this is equivalent to a mov. */
tcg_gen_ext32u_tl(cpu_regs[reg], t0);
break;
#ifdef TARGET_X86_64
case MO_64:
tcg_gen_mov_tl(cpu_regs[reg], t0);
break;
#endif
default:
tcg_abort();
}
}
static inline void gen_op_mov_v_reg(TCGMemOp ot, TCGv t0, int reg)
{
if (ot == MO_8 && byte_reg_is_xH(reg)) {
tcg_gen_shri_tl(t0, cpu_regs[reg - 4], 8);
tcg_gen_ext8u_tl(t0, t0);
} else {
tcg_gen_mov_tl(t0, cpu_regs[reg]);
}
}
static inline void gen_op_movl_A0_reg(int reg)
{
tcg_gen_mov_tl(cpu_A0, cpu_regs[reg]);
}
static inline void gen_op_addl_A0_im(int32_t val)
{
tcg_gen_addi_tl(cpu_A0, cpu_A0, val);
#ifdef TARGET_X86_64
tcg_gen_andi_tl(cpu_A0, cpu_A0, 0xffffffff);
#endif
}
#ifdef TARGET_X86_64
static inline void gen_op_addq_A0_im(int64_t val)
{
tcg_gen_addi_tl(cpu_A0, cpu_A0, val);
}
#endif
static void gen_add_A0_im(DisasContext *s, int val)
{
#ifdef TARGET_X86_64
if (CODE64(s))
gen_op_addq_A0_im(val);
else
#endif
gen_op_addl_A0_im(val);
}
static inline void gen_op_jmp_v(TCGv dest)
{
tcg_gen_st_tl(dest, cpu_env, offsetof(CPUX86State, eip));
}
static inline void gen_op_add_reg_im(TCGMemOp size, int reg, int32_t val)
{
tcg_gen_addi_tl(cpu_tmp0, cpu_regs[reg], val);
gen_op_mov_reg_v(size, reg, cpu_tmp0);
}
static inline void gen_op_add_reg_T0(TCGMemOp size, int reg)
{
tcg_gen_add_tl(cpu_tmp0, cpu_regs[reg], cpu_T[0]);
gen_op_mov_reg_v(size, reg, cpu_tmp0);
}
static inline void gen_op_addl_A0_reg_sN(int shift, int reg)
{
tcg_gen_mov_tl(cpu_tmp0, cpu_regs[reg]);
if (shift != 0)
tcg_gen_shli_tl(cpu_tmp0, cpu_tmp0, shift);
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
/* For x86_64, this sets the higher half of register to zero.
For i386, this is equivalent to a nop. */
tcg_gen_ext32u_tl(cpu_A0, cpu_A0);
}
static inline void gen_op_movl_A0_seg(int reg)
{
tcg_gen_ld32u_tl(cpu_A0, cpu_env, offsetof(CPUX86State, segs[reg].base) + REG_L_OFFSET);
}
static inline void gen_op_addl_A0_seg(DisasContext *s, int reg)
{
tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUX86State, segs[reg].base));
#ifdef TARGET_X86_64
if (CODE64(s)) {
tcg_gen_andi_tl(cpu_A0, cpu_A0, 0xffffffff);
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
} else {
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
tcg_gen_andi_tl(cpu_A0, cpu_A0, 0xffffffff);
}
#else
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
#endif
}
#ifdef TARGET_X86_64
static inline void gen_op_movq_A0_seg(int reg)
{
tcg_gen_ld_tl(cpu_A0, cpu_env, offsetof(CPUX86State, segs[reg].base));
}
static inline void gen_op_addq_A0_seg(int reg)
{
tcg_gen_ld_tl(cpu_tmp0, cpu_env, offsetof(CPUX86State, segs[reg].base));
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
}
static inline void gen_op_movq_A0_reg(int reg)
{
tcg_gen_mov_tl(cpu_A0, cpu_regs[reg]);
}
static inline void gen_op_addq_A0_reg_sN(int shift, int reg)
{
tcg_gen_mov_tl(cpu_tmp0, cpu_regs[reg]);
if (shift != 0)
tcg_gen_shli_tl(cpu_tmp0, cpu_tmp0, shift);
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
}
#endif
static inline void gen_op_ld_v(DisasContext *s, int idx, TCGv t0, TCGv a0)
{
tcg_gen_qemu_ld_tl(t0, a0, s->mem_index, idx | MO_LE);
}
static inline void gen_op_st_v(DisasContext *s, int idx, TCGv t0, TCGv a0)
{
tcg_gen_qemu_st_tl(t0, a0, s->mem_index, idx | MO_LE);
}
static inline void gen_op_st_rm_T0_A0(DisasContext *s, int idx, int d)
{
if (d == OR_TMP0) {
gen_op_st_v(s, idx, cpu_T[0], cpu_A0);
} else {
gen_op_mov_reg_v(idx, d, cpu_T[0]);
}
}
static inline void gen_jmp_im(target_ulong pc)
{
tcg_gen_movi_tl(cpu_tmp0, pc);
gen_op_jmp_v(cpu_tmp0);
}
static inline void gen_string_movl_A0_ESI(DisasContext *s)
{
int override;
override = s->override;
switch (s->aflag) {
#ifdef TARGET_X86_64
case MO_64:
if (override >= 0) {
gen_op_movq_A0_seg(override);
gen_op_addq_A0_reg_sN(0, R_ESI);
} else {
gen_op_movq_A0_reg(R_ESI);
}
break;
#endif
case MO_32:
/* 32 bit address */
if (s->addseg && override < 0)
override = R_DS;
if (override >= 0) {
gen_op_movl_A0_seg(override);
gen_op_addl_A0_reg_sN(0, R_ESI);
} else {
gen_op_movl_A0_reg(R_ESI);
}
break;
case MO_16:
/* 16 address, always override */
if (override < 0)
override = R_DS;
tcg_gen_ext16u_tl(cpu_A0, cpu_regs[R_ESI]);
gen_op_addl_A0_seg(s, override);
break;
default:
tcg_abort();
}
}
static inline void gen_string_movl_A0_EDI(DisasContext *s)
{
switch (s->aflag) {
#ifdef TARGET_X86_64
case MO_64:
gen_op_movq_A0_reg(R_EDI);
break;
#endif
case MO_32:
if (s->addseg) {
gen_op_movl_A0_seg(R_ES);
gen_op_addl_A0_reg_sN(0, R_EDI);
} else {
gen_op_movl_A0_reg(R_EDI);
}
break;
case MO_16:
tcg_gen_ext16u_tl(cpu_A0, cpu_regs[R_EDI]);
gen_op_addl_A0_seg(s, R_ES);
break;
default:
tcg_abort();
}
}
static inline void gen_op_movl_T0_Dshift(TCGMemOp ot)
{
tcg_gen_ld32s_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, df));
tcg_gen_shli_tl(cpu_T[0], cpu_T[0], ot);
};
static TCGv gen_ext_tl(TCGv dst, TCGv src, TCGMemOp size, bool sign)
{
switch (size) {
case MO_8:
if (sign) {
tcg_gen_ext8s_tl(dst, src);
} else {
tcg_gen_ext8u_tl(dst, src);
}
return dst;
case MO_16:
if (sign) {
tcg_gen_ext16s_tl(dst, src);
} else {
tcg_gen_ext16u_tl(dst, src);
}
return dst;
#ifdef TARGET_X86_64
case MO_32:
if (sign) {
tcg_gen_ext32s_tl(dst, src);
} else {
tcg_gen_ext32u_tl(dst, src);
}
return dst;
#endif
default:
return src;
}
}
static void gen_extu(TCGMemOp ot, TCGv reg)
{
gen_ext_tl(reg, reg, ot, false);
}
static void gen_exts(TCGMemOp ot, TCGv reg)
{
gen_ext_tl(reg, reg, ot, true);
}
static inline void gen_op_jnz_ecx(TCGMemOp size, int label1)
{
tcg_gen_mov_tl(cpu_tmp0, cpu_regs[R_ECX]);
gen_extu(size, cpu_tmp0);
tcg_gen_brcondi_tl(TCG_COND_NE, cpu_tmp0, 0, label1);
}
static inline void gen_op_jz_ecx(TCGMemOp size, int label1)
{
tcg_gen_mov_tl(cpu_tmp0, cpu_regs[R_ECX]);
gen_extu(size, cpu_tmp0);
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_tmp0, 0, label1);
}
static void gen_helper_in_func(TCGMemOp ot, TCGv v, TCGv_i32 n)
{
switch (ot) {
case MO_8:
gen_helper_inb(v, n);
break;
case MO_16:
gen_helper_inw(v, n);
break;
case MO_32:
gen_helper_inl(v, n);
break;
default:
tcg_abort();
}
}
static void gen_helper_out_func(TCGMemOp ot, TCGv_i32 v, TCGv_i32 n)
{
switch (ot) {
case MO_8:
gen_helper_outb(v, n);
break;
case MO_16:
gen_helper_outw(v, n);
break;
case MO_32:
gen_helper_outl(v, n);
break;
default:
tcg_abort();
}
}
static void gen_check_io(DisasContext *s, TCGMemOp ot, target_ulong cur_eip,
uint32_t svm_flags)
{
int state_saved;
target_ulong next_eip;
state_saved = 0;
if (s->pe && (s->cpl > s->iopl || s->vm86)) {
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
state_saved = 1;
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
switch (ot) {
case MO_8:
gen_helper_check_iob(cpu_env, cpu_tmp2_i32);
break;
case MO_16:
gen_helper_check_iow(cpu_env, cpu_tmp2_i32);
break;
case MO_32:
gen_helper_check_iol(cpu_env, cpu_tmp2_i32);
break;
default:
tcg_abort();
}
}
if(s->flags & HF_SVMI_MASK) {
if (!state_saved) {
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
}
svm_flags |= (1 << (4 + ot));
next_eip = s->pc - s->cs_base;
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_svm_check_io(cpu_env, cpu_tmp2_i32,
tcg_const_i32(svm_flags),
tcg_const_i32(next_eip - cur_eip));
}
}
static inline void gen_movs(DisasContext *s, TCGMemOp ot)
{
gen_string_movl_A0_ESI(s);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
gen_string_movl_A0_EDI(s);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag, R_EDI);
}
static void gen_op_update1_cc(void)
{
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
}
static void gen_op_update2_cc(void)
{
tcg_gen_mov_tl(cpu_cc_src, cpu_T[1]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
}
static void gen_op_update3_cc(TCGv reg)
{
tcg_gen_mov_tl(cpu_cc_src2, reg);
tcg_gen_mov_tl(cpu_cc_src, cpu_T[1]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
}
static inline void gen_op_testl_T0_T1_cc(void)
{
tcg_gen_and_tl(cpu_cc_dst, cpu_T[0], cpu_T[1]);
}
static void gen_op_update_neg_cc(void)
{
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_neg_tl(cpu_cc_src, cpu_T[0]);
tcg_gen_movi_tl(cpu_cc_srcT, 0);
}
/* compute all eflags to cc_src */
static void gen_compute_eflags(DisasContext *s)
{
TCGv zero, dst, src1, src2;
int live, dead;
if (s->cc_op == CC_OP_EFLAGS) {
return;
}
if (s->cc_op == CC_OP_CLR) {
tcg_gen_movi_tl(cpu_cc_src, CC_Z | CC_P);
set_cc_op(s, CC_OP_EFLAGS);
return;
}
TCGV_UNUSED(zero);
dst = cpu_cc_dst;
src1 = cpu_cc_src;
src2 = cpu_cc_src2;
/* Take care to not read values that are not live. */
live = cc_op_live[s->cc_op] & ~USES_CC_SRCT;
dead = live ^ (USES_CC_DST | USES_CC_SRC | USES_CC_SRC2);
if (dead) {
zero = tcg_const_tl(0);
if (dead & USES_CC_DST) {
dst = zero;
}
if (dead & USES_CC_SRC) {
src1 = zero;
}
if (dead & USES_CC_SRC2) {
src2 = zero;
}
}
gen_update_cc_op(s);
gen_helper_cc_compute_all(cpu_cc_src, dst, src1, src2, cpu_cc_op);
set_cc_op(s, CC_OP_EFLAGS);
if (dead) {
tcg_temp_free(zero);
}
}
typedef struct CCPrepare {
TCGCond cond;
TCGv reg;
TCGv reg2;
target_ulong imm;
target_ulong mask;
bool use_reg2;
bool no_setcond;
} CCPrepare;
/* compute eflags.C to reg */
static CCPrepare gen_prepare_eflags_c(DisasContext *s, TCGv reg)
{
TCGv t0, t1;
int size, shift;
switch (s->cc_op) {
case CC_OP_SUBB ... CC_OP_SUBQ:
/* (DATA_TYPE)CC_SRCT < (DATA_TYPE)CC_SRC */
size = s->cc_op - CC_OP_SUBB;
t1 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, false);
/* If no temporary was used, be careful not to alias t1 and t0. */
t0 = TCGV_EQUAL(t1, cpu_cc_src) ? cpu_tmp0 : reg;
tcg_gen_mov_tl(t0, cpu_cc_srcT);
gen_extu(size, t0);
goto add_sub;
case CC_OP_ADDB ... CC_OP_ADDQ:
/* (DATA_TYPE)CC_DST < (DATA_TYPE)CC_SRC */
size = s->cc_op - CC_OP_ADDB;
t1 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, false);
t0 = gen_ext_tl(reg, cpu_cc_dst, size, false);
add_sub:
return (CCPrepare) { .cond = TCG_COND_LTU, .reg = t0,
.reg2 = t1, .mask = -1, .use_reg2 = true };
case CC_OP_LOGICB ... CC_OP_LOGICQ:
case CC_OP_CLR:
return (CCPrepare) { .cond = TCG_COND_NEVER, .mask = -1 };
case CC_OP_INCB ... CC_OP_INCQ:
case CC_OP_DECB ... CC_OP_DECQ:
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = -1, .no_setcond = true };
case CC_OP_SHLB ... CC_OP_SHLQ:
/* (CC_SRC >> (DATA_BITS - 1)) & 1 */
size = s->cc_op - CC_OP_SHLB;
shift = (8 << size) - 1;
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = (target_ulong)1 << shift };
case CC_OP_MULB ... CC_OP_MULQ:
return (CCPrepare) { .cond = TCG_COND_NE,
.reg = cpu_cc_src, .mask = -1 };
case CC_OP_BMILGB ... CC_OP_BMILGQ:
size = s->cc_op - CC_OP_BMILGB;
t0 = gen_ext_tl(reg, cpu_cc_src, size, false);
return (CCPrepare) { .cond = TCG_COND_EQ, .reg = t0, .mask = -1 };
case CC_OP_ADCX:
case CC_OP_ADCOX:
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_dst,
.mask = -1, .no_setcond = true };
case CC_OP_EFLAGS:
case CC_OP_SARB ... CC_OP_SARQ:
/* CC_SRC & 1 */
return (CCPrepare) { .cond = TCG_COND_NE,
.reg = cpu_cc_src, .mask = CC_C };
default:
/* The need to compute only C from CC_OP_DYNAMIC is important
in efficiently implementing e.g. INC at the start of a TB. */
gen_update_cc_op(s);
gen_helper_cc_compute_c(reg, cpu_cc_dst, cpu_cc_src,
cpu_cc_src2, cpu_cc_op);
return (CCPrepare) { .cond = TCG_COND_NE, .reg = reg,
.mask = -1, .no_setcond = true };
}
}
/* compute eflags.P to reg */
static CCPrepare gen_prepare_eflags_p(DisasContext *s, TCGv reg)
{
gen_compute_eflags(s);
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = CC_P };
}
/* compute eflags.S to reg */
static CCPrepare gen_prepare_eflags_s(DisasContext *s, TCGv reg)
{
switch (s->cc_op) {
case CC_OP_DYNAMIC:
gen_compute_eflags(s);
/* FALLTHRU */
case CC_OP_EFLAGS:
case CC_OP_ADCX:
case CC_OP_ADOX:
case CC_OP_ADCOX:
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = CC_S };
case CC_OP_CLR:
return (CCPrepare) { .cond = TCG_COND_NEVER, .mask = -1 };
default:
{
TCGMemOp size = (s->cc_op - CC_OP_ADDB) & 3;
TCGv t0 = gen_ext_tl(reg, cpu_cc_dst, size, true);
return (CCPrepare) { .cond = TCG_COND_LT, .reg = t0, .mask = -1 };
}
}
}
/* compute eflags.O to reg */
static CCPrepare gen_prepare_eflags_o(DisasContext *s, TCGv reg)
{
switch (s->cc_op) {
case CC_OP_ADOX:
case CC_OP_ADCOX:
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src2,
.mask = -1, .no_setcond = true };
case CC_OP_CLR:
return (CCPrepare) { .cond = TCG_COND_NEVER, .mask = -1 };
default:
gen_compute_eflags(s);
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = CC_O };
}
}
/* compute eflags.Z to reg */
static CCPrepare gen_prepare_eflags_z(DisasContext *s, TCGv reg)
{
switch (s->cc_op) {
case CC_OP_DYNAMIC:
gen_compute_eflags(s);
/* FALLTHRU */
case CC_OP_EFLAGS:
case CC_OP_ADCX:
case CC_OP_ADOX:
case CC_OP_ADCOX:
return (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = CC_Z };
case CC_OP_CLR:
return (CCPrepare) { .cond = TCG_COND_ALWAYS, .mask = -1 };
default:
{
TCGMemOp size = (s->cc_op - CC_OP_ADDB) & 3;
TCGv t0 = gen_ext_tl(reg, cpu_cc_dst, size, false);
return (CCPrepare) { .cond = TCG_COND_EQ, .reg = t0, .mask = -1 };
}
}
}
/* perform a conditional store into register 'reg' according to jump opcode
value 'b'. In the fast case, T0 is guaranted not to be used. */
static CCPrepare gen_prepare_cc(DisasContext *s, int b, TCGv reg)
{
int inv, jcc_op, cond;
TCGMemOp size;
CCPrepare cc;
TCGv t0;
inv = b & 1;
jcc_op = (b >> 1) & 7;
switch (s->cc_op) {
case CC_OP_SUBB ... CC_OP_SUBQ:
/* We optimize relational operators for the cmp/jcc case. */
size = s->cc_op - CC_OP_SUBB;
switch (jcc_op) {
case JCC_BE:
tcg_gen_mov_tl(cpu_tmp4, cpu_cc_srcT);
gen_extu(size, cpu_tmp4);
t0 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, false);
cc = (CCPrepare) { .cond = TCG_COND_LEU, .reg = cpu_tmp4,
.reg2 = t0, .mask = -1, .use_reg2 = true };
break;
case JCC_L:
cond = TCG_COND_LT;
goto fast_jcc_l;
case JCC_LE:
cond = TCG_COND_LE;
fast_jcc_l:
tcg_gen_mov_tl(cpu_tmp4, cpu_cc_srcT);
gen_exts(size, cpu_tmp4);
t0 = gen_ext_tl(cpu_tmp0, cpu_cc_src, size, true);
cc = (CCPrepare) { .cond = cond, .reg = cpu_tmp4,
.reg2 = t0, .mask = -1, .use_reg2 = true };
break;
default:
goto slow_jcc;
}
break;
default:
slow_jcc:
/* This actually generates good code for JC, JZ and JS. */
switch (jcc_op) {
case JCC_O:
cc = gen_prepare_eflags_o(s, reg);
break;
case JCC_B:
cc = gen_prepare_eflags_c(s, reg);
break;
case JCC_Z:
cc = gen_prepare_eflags_z(s, reg);
break;
case JCC_BE:
gen_compute_eflags(s);
cc = (CCPrepare) { .cond = TCG_COND_NE, .reg = cpu_cc_src,
.mask = CC_Z | CC_C };
break;
case JCC_S:
cc = gen_prepare_eflags_s(s, reg);
break;
case JCC_P:
cc = gen_prepare_eflags_p(s, reg);
break;
case JCC_L:
gen_compute_eflags(s);
if (TCGV_EQUAL(reg, cpu_cc_src)) {
reg = cpu_tmp0;
}
tcg_gen_shri_tl(reg, cpu_cc_src, 4); /* CC_O -> CC_S */
tcg_gen_xor_tl(reg, reg, cpu_cc_src);
cc = (CCPrepare) { .cond = TCG_COND_NE, .reg = reg,
.mask = CC_S };
break;
default:
case JCC_LE:
gen_compute_eflags(s);
if (TCGV_EQUAL(reg, cpu_cc_src)) {
reg = cpu_tmp0;
}
tcg_gen_shri_tl(reg, cpu_cc_src, 4); /* CC_O -> CC_S */
tcg_gen_xor_tl(reg, reg, cpu_cc_src);
cc = (CCPrepare) { .cond = TCG_COND_NE, .reg = reg,
.mask = CC_S | CC_Z };
break;
}
break;
}
if (inv) {
cc.cond = tcg_invert_cond(cc.cond);
}
return cc;
}
static void gen_setcc1(DisasContext *s, int b, TCGv reg)
{
CCPrepare cc = gen_prepare_cc(s, b, reg);
if (cc.no_setcond) {
if (cc.cond == TCG_COND_EQ) {
tcg_gen_xori_tl(reg, cc.reg, 1);
} else {
tcg_gen_mov_tl(reg, cc.reg);
}
return;
}
if (cc.cond == TCG_COND_NE && !cc.use_reg2 && cc.imm == 0 &&
cc.mask != 0 && (cc.mask & (cc.mask - 1)) == 0) {
tcg_gen_shri_tl(reg, cc.reg, ctztl(cc.mask));
tcg_gen_andi_tl(reg, reg, 1);
return;
}
if (cc.mask != -1) {
tcg_gen_andi_tl(reg, cc.reg, cc.mask);
cc.reg = reg;
}
if (cc.use_reg2) {
tcg_gen_setcond_tl(cc.cond, reg, cc.reg, cc.reg2);
} else {
tcg_gen_setcondi_tl(cc.cond, reg, cc.reg, cc.imm);
}
}
static inline void gen_compute_eflags_c(DisasContext *s, TCGv reg)
{
gen_setcc1(s, JCC_B << 1, reg);
}
/* generate a conditional jump to label 'l1' according to jump opcode
value 'b'. In the fast case, T0 is guaranted not to be used. */
static inline void gen_jcc1_noeob(DisasContext *s, int b, int l1)
{
CCPrepare cc = gen_prepare_cc(s, b, cpu_T[0]);
if (cc.mask != -1) {
tcg_gen_andi_tl(cpu_T[0], cc.reg, cc.mask);
cc.reg = cpu_T[0];
}
if (cc.use_reg2) {
tcg_gen_brcond_tl(cc.cond, cc.reg, cc.reg2, l1);
} else {
tcg_gen_brcondi_tl(cc.cond, cc.reg, cc.imm, l1);
}
}
/* Generate a conditional jump to label 'l1' according to jump opcode
value 'b'. In the fast case, T0 is guaranted not to be used.
A translation block must end soon. */
static inline void gen_jcc1(DisasContext *s, int b, int l1)
{
CCPrepare cc = gen_prepare_cc(s, b, cpu_T[0]);
gen_update_cc_op(s);
if (cc.mask != -1) {
tcg_gen_andi_tl(cpu_T[0], cc.reg, cc.mask);
cc.reg = cpu_T[0];
}
set_cc_op(s, CC_OP_DYNAMIC);
if (cc.use_reg2) {
tcg_gen_brcond_tl(cc.cond, cc.reg, cc.reg2, l1);
} else {
tcg_gen_brcondi_tl(cc.cond, cc.reg, cc.imm, l1);
}
}
/* XXX: does not work with gdbstub "ice" single step - not a
serious problem */
static int gen_jz_ecx_string(DisasContext *s, target_ulong next_eip)
{
int l1, l2;
l1 = gen_new_label();
l2 = gen_new_label();
gen_op_jnz_ecx(s->aflag, l1);
gen_set_label(l2);
gen_jmp_tb(s, next_eip, 1);
gen_set_label(l1);
return l2;
}
static inline void gen_stos(DisasContext *s, TCGMemOp ot)
{
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EAX);
gen_string_movl_A0_EDI(s);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
}
static inline void gen_lods(DisasContext *s, TCGMemOp ot)
{
gen_string_movl_A0_ESI(s);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(ot, R_EAX, cpu_T[0]);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
}
static inline void gen_scas(DisasContext *s, TCGMemOp ot)
{
gen_string_movl_A0_EDI(s);
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_op(s, OP_CMPL, ot, R_EAX);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
}
static inline void gen_cmps(DisasContext *s, TCGMemOp ot)
{
gen_string_movl_A0_EDI(s);
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_string_movl_A0_ESI(s);
gen_op(s, OP_CMPL, ot, OR_TMP0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
gen_op_add_reg_T0(s->aflag, R_EDI);
}
static inline void gen_ins(DisasContext *s, TCGMemOp ot)
{
if (use_icount)
gen_io_start();
gen_string_movl_A0_EDI(s);
/* Note: we must do this dummy write first to be restartable in
case of page fault. */
tcg_gen_movi_tl(cpu_T[0], 0);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[R_EDX]);
tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff);
gen_helper_in_func(ot, cpu_T[0], cpu_tmp2_i32);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_EDI);
if (use_icount)
gen_io_end();
}
static inline void gen_outs(DisasContext *s, TCGMemOp ot)
{
if (use_icount)
gen_io_start();
gen_string_movl_A0_ESI(s);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[R_EDX]);
tcg_gen_andi_i32(cpu_tmp2_i32, cpu_tmp2_i32, 0xffff);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[0]);
gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32);
gen_op_movl_T0_Dshift(ot);
gen_op_add_reg_T0(s->aflag, R_ESI);
if (use_icount)
gen_io_end();
}
/* same method as Valgrind : we generate jumps to current or next
instruction */
#define GEN_REPZ(op) \
static inline void gen_repz_ ## op(DisasContext *s, TCGMemOp ot, \
target_ulong cur_eip, target_ulong next_eip) \
{ \
int l2;\
gen_update_cc_op(s); \
l2 = gen_jz_ecx_string(s, next_eip); \
gen_ ## op(s, ot); \
gen_op_add_reg_im(s->aflag, R_ECX, -1); \
/* a loop would cause two single step exceptions if ECX = 1 \
before rep string_insn */ \
if (!s->jmp_opt) \
gen_op_jz_ecx(s->aflag, l2); \
gen_jmp(s, cur_eip); \
}
#define GEN_REPZ2(op) \
static inline void gen_repz_ ## op(DisasContext *s, TCGMemOp ot, \
target_ulong cur_eip, \
target_ulong next_eip, \
int nz) \
{ \
int l2;\
gen_update_cc_op(s); \
l2 = gen_jz_ecx_string(s, next_eip); \
gen_ ## op(s, ot); \
gen_op_add_reg_im(s->aflag, R_ECX, -1); \
gen_update_cc_op(s); \
gen_jcc1(s, (JCC_Z << 1) | (nz ^ 1), l2); \
if (!s->jmp_opt) \
gen_op_jz_ecx(s->aflag, l2); \
gen_jmp(s, cur_eip); \
}
GEN_REPZ(movs)
GEN_REPZ(stos)
GEN_REPZ(lods)
GEN_REPZ(ins)
GEN_REPZ(outs)
GEN_REPZ2(scas)
GEN_REPZ2(cmps)
static void gen_helper_fp_arith_ST0_FT0(int op)
{
switch (op) {
case 0:
gen_helper_fadd_ST0_FT0(cpu_env);
break;
case 1:
gen_helper_fmul_ST0_FT0(cpu_env);
break;
case 2:
gen_helper_fcom_ST0_FT0(cpu_env);
break;
case 3:
gen_helper_fcom_ST0_FT0(cpu_env);
break;
case 4:
gen_helper_fsub_ST0_FT0(cpu_env);
break;
case 5:
gen_helper_fsubr_ST0_FT0(cpu_env);
break;
case 6:
gen_helper_fdiv_ST0_FT0(cpu_env);
break;
case 7:
gen_helper_fdivr_ST0_FT0(cpu_env);
break;
}
}
/* NOTE the exception in "r" op ordering */
static void gen_helper_fp_arith_STN_ST0(int op, int opreg)
{
TCGv_i32 tmp = tcg_const_i32(opreg);
switch (op) {
case 0:
gen_helper_fadd_STN_ST0(cpu_env, tmp);
break;
case 1:
gen_helper_fmul_STN_ST0(cpu_env, tmp);
break;
case 4:
gen_helper_fsubr_STN_ST0(cpu_env, tmp);
break;
case 5:
gen_helper_fsub_STN_ST0(cpu_env, tmp);
break;
case 6:
gen_helper_fdivr_STN_ST0(cpu_env, tmp);
break;
case 7:
gen_helper_fdiv_STN_ST0(cpu_env, tmp);
break;
}
}
/* if d == OR_TMP0, it means memory operand (address in A0) */
static void gen_op(DisasContext *s1, int op, TCGMemOp ot, int d)
{
if (d != OR_TMP0) {
gen_op_mov_v_reg(ot, cpu_T[0], d);
} else {
gen_op_ld_v(s1, ot, cpu_T[0], cpu_A0);
}
switch(op) {
case OP_ADCL:
gen_compute_eflags_c(s1, cpu_tmp4);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_tmp4);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update3_cc(cpu_tmp4);
set_cc_op(s1, CC_OP_ADCB + ot);
break;
case OP_SBBL:
gen_compute_eflags_c(s1, cpu_tmp4);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_tmp4);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update3_cc(cpu_tmp4);
set_cc_op(s1, CC_OP_SBBB + ot);
break;
case OP_ADDL:
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update2_cc();
set_cc_op(s1, CC_OP_ADDB + ot);
break;
case OP_SUBL:
tcg_gen_mov_tl(cpu_cc_srcT, cpu_T[0]);
tcg_gen_sub_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update2_cc();
set_cc_op(s1, CC_OP_SUBB + ot);
break;
default:
case OP_ANDL:
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update1_cc();
set_cc_op(s1, CC_OP_LOGICB + ot);
break;
case OP_ORL:
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update1_cc();
set_cc_op(s1, CC_OP_LOGICB + ot);
break;
case OP_XORL:
tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_rm_T0_A0(s1, ot, d);
gen_op_update1_cc();
set_cc_op(s1, CC_OP_LOGICB + ot);
break;
case OP_CMPL:
tcg_gen_mov_tl(cpu_cc_src, cpu_T[1]);
tcg_gen_mov_tl(cpu_cc_srcT, cpu_T[0]);
tcg_gen_sub_tl(cpu_cc_dst, cpu_T[0], cpu_T[1]);
set_cc_op(s1, CC_OP_SUBB + ot);
break;
}
}
/* if d == OR_TMP0, it means memory operand (address in A0) */
static void gen_inc(DisasContext *s1, TCGMemOp ot, int d, int c)
{
if (d != OR_TMP0) {
gen_op_mov_v_reg(ot, cpu_T[0], d);
} else {
gen_op_ld_v(s1, ot, cpu_T[0], cpu_A0);
}
gen_compute_eflags_c(s1, cpu_cc_src);
if (c > 0) {
tcg_gen_addi_tl(cpu_T[0], cpu_T[0], 1);
set_cc_op(s1, CC_OP_INCB + ot);
} else {
tcg_gen_addi_tl(cpu_T[0], cpu_T[0], -1);
set_cc_op(s1, CC_OP_DECB + ot);
}
gen_op_st_rm_T0_A0(s1, ot, d);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
}
static void gen_shift_flags(DisasContext *s, TCGMemOp ot, TCGv result,
TCGv shm1, TCGv count, bool is_right)
{
TCGv_i32 z32, s32, oldop;
TCGv z_tl;
/* Store the results into the CC variables. If we know that the
variable must be dead, store unconditionally. Otherwise we'll
need to not disrupt the current contents. */
z_tl = tcg_const_tl(0);
if (cc_op_live[s->cc_op] & USES_CC_DST) {
tcg_gen_movcond_tl(TCG_COND_NE, cpu_cc_dst, count, z_tl,
result, cpu_cc_dst);
} else {
tcg_gen_mov_tl(cpu_cc_dst, result);
}
if (cc_op_live[s->cc_op] & USES_CC_SRC) {
tcg_gen_movcond_tl(TCG_COND_NE, cpu_cc_src, count, z_tl,
shm1, cpu_cc_src);
} else {
tcg_gen_mov_tl(cpu_cc_src, shm1);
}
tcg_temp_free(z_tl);
/* Get the two potential CC_OP values into temporaries. */
tcg_gen_movi_i32(cpu_tmp2_i32, (is_right ? CC_OP_SARB : CC_OP_SHLB) + ot);
if (s->cc_op == CC_OP_DYNAMIC) {
oldop = cpu_cc_op;
} else {
tcg_gen_movi_i32(cpu_tmp3_i32, s->cc_op);
oldop = cpu_tmp3_i32;
}
/* Conditionally store the CC_OP value. */
z32 = tcg_const_i32(0);
s32 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(s32, count);
tcg_gen_movcond_i32(TCG_COND_NE, cpu_cc_op, s32, z32, cpu_tmp2_i32, oldop);
tcg_temp_free_i32(z32);
tcg_temp_free_i32(s32);
/* The CC_OP value is no longer predictable. */
set_cc_op(s, CC_OP_DYNAMIC);
}
static void gen_shift_rm_T1(DisasContext *s, TCGMemOp ot, int op1,
int is_right, int is_arith)
{
target_ulong mask = (ot == MO_64 ? 0x3f : 0x1f);
/* load */
if (op1 == OR_TMP0) {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], op1);
}
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], mask);
tcg_gen_subi_tl(cpu_tmp0, cpu_T[1], 1);
if (is_right) {
if (is_arith) {
gen_exts(ot, cpu_T[0]);
tcg_gen_sar_tl(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_sar_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
} else {
gen_extu(ot, cpu_T[0]);
tcg_gen_shr_tl(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
}
} else {
tcg_gen_shl_tl(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_shl_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
gen_shift_flags(s, ot, cpu_T[0], cpu_tmp0, cpu_T[1], is_right);
}
static void gen_shift_rm_im(DisasContext *s, TCGMemOp ot, int op1, int op2,
int is_right, int is_arith)
{
int mask = (ot == MO_64 ? 0x3f : 0x1f);
/* load */
if (op1 == OR_TMP0)
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
else
gen_op_mov_v_reg(ot, cpu_T[0], op1);
op2 &= mask;
if (op2 != 0) {
if (is_right) {
if (is_arith) {
gen_exts(ot, cpu_T[0]);
tcg_gen_sari_tl(cpu_tmp4, cpu_T[0], op2 - 1);
tcg_gen_sari_tl(cpu_T[0], cpu_T[0], op2);
} else {
gen_extu(ot, cpu_T[0]);
tcg_gen_shri_tl(cpu_tmp4, cpu_T[0], op2 - 1);
tcg_gen_shri_tl(cpu_T[0], cpu_T[0], op2);
}
} else {
tcg_gen_shli_tl(cpu_tmp4, cpu_T[0], op2 - 1);
tcg_gen_shli_tl(cpu_T[0], cpu_T[0], op2);
}
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
/* update eflags if non zero shift */
if (op2 != 0) {
tcg_gen_mov_tl(cpu_cc_src, cpu_tmp4);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
set_cc_op(s, (is_right ? CC_OP_SARB : CC_OP_SHLB) + ot);
}
}
static inline void tcg_gen_lshift(TCGv ret, TCGv arg1, target_long arg2)
{
if (arg2 >= 0)
tcg_gen_shli_tl(ret, arg1, arg2);
else
tcg_gen_shri_tl(ret, arg1, -arg2);
}
static void gen_rot_rm_T1(DisasContext *s, TCGMemOp ot, int op1, int is_right)
{
target_ulong mask = (ot == MO_64 ? 0x3f : 0x1f);
TCGv_i32 t0, t1;
/* load */
if (op1 == OR_TMP0) {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], op1);
}
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], mask);
switch (ot) {
case MO_8:
/* Replicate the 8-bit input so that a 32-bit rotate works. */
tcg_gen_ext8u_tl(cpu_T[0], cpu_T[0]);
tcg_gen_muli_tl(cpu_T[0], cpu_T[0], 0x01010101);
goto do_long;
case MO_16:
/* Replicate the 16-bit input so that a 32-bit rotate works. */
tcg_gen_deposit_tl(cpu_T[0], cpu_T[0], cpu_T[0], 16, 16);
goto do_long;
do_long:
#ifdef TARGET_X86_64
case MO_32:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]);
if (is_right) {
tcg_gen_rotr_i32(cpu_tmp2_i32, cpu_tmp2_i32, cpu_tmp3_i32);
} else {
tcg_gen_rotl_i32(cpu_tmp2_i32, cpu_tmp2_i32, cpu_tmp3_i32);
}
tcg_gen_extu_i32_tl(cpu_T[0], cpu_tmp2_i32);
break;
#endif
default:
if (is_right) {
tcg_gen_rotr_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
} else {
tcg_gen_rotl_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
}
break;
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
/* We'll need the flags computed into CC_SRC. */
gen_compute_eflags(s);
/* The value that was "rotated out" is now present at the other end
of the word. Compute C into CC_DST and O into CC_SRC2. Note that
since we've computed the flags into CC_SRC, these variables are
currently dead. */
if (is_right) {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask - 1);
tcg_gen_shri_tl(cpu_cc_dst, cpu_T[0], mask);
tcg_gen_andi_tl(cpu_cc_dst, cpu_cc_dst, 1);
} else {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask);
tcg_gen_andi_tl(cpu_cc_dst, cpu_T[0], 1);
}
tcg_gen_andi_tl(cpu_cc_src2, cpu_cc_src2, 1);
tcg_gen_xor_tl(cpu_cc_src2, cpu_cc_src2, cpu_cc_dst);
/* Now conditionally store the new CC_OP value. If the shift count
is 0 we keep the CC_OP_EFLAGS setting so that only CC_SRC is live.
Otherwise reuse CC_OP_ADCOX which have the C and O flags split out
exactly as we computed above. */
t0 = tcg_const_i32(0);
t1 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t1, cpu_T[1]);
tcg_gen_movi_i32(cpu_tmp2_i32, CC_OP_ADCOX);
tcg_gen_movi_i32(cpu_tmp3_i32, CC_OP_EFLAGS);
tcg_gen_movcond_i32(TCG_COND_NE, cpu_cc_op, t1, t0,
cpu_tmp2_i32, cpu_tmp3_i32);
tcg_temp_free_i32(t0);
tcg_temp_free_i32(t1);
/* The CC_OP value is no longer predictable. */
set_cc_op(s, CC_OP_DYNAMIC);
}
static void gen_rot_rm_im(DisasContext *s, TCGMemOp ot, int op1, int op2,
int is_right)
{
int mask = (ot == MO_64 ? 0x3f : 0x1f);
int shift;
/* load */
if (op1 == OR_TMP0) {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], op1);
}
op2 &= mask;
if (op2 != 0) {
switch (ot) {
#ifdef TARGET_X86_64
case MO_32:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
if (is_right) {
tcg_gen_rotri_i32(cpu_tmp2_i32, cpu_tmp2_i32, op2);
} else {
tcg_gen_rotli_i32(cpu_tmp2_i32, cpu_tmp2_i32, op2);
}
tcg_gen_extu_i32_tl(cpu_T[0], cpu_tmp2_i32);
break;
#endif
default:
if (is_right) {
tcg_gen_rotri_tl(cpu_T[0], cpu_T[0], op2);
} else {
tcg_gen_rotli_tl(cpu_T[0], cpu_T[0], op2);
}
break;
case MO_8:
mask = 7;
goto do_shifts;
case MO_16:
mask = 15;
do_shifts:
shift = op2 & mask;
if (is_right) {
shift = mask + 1 - shift;
}
gen_extu(ot, cpu_T[0]);
tcg_gen_shli_tl(cpu_tmp0, cpu_T[0], shift);
tcg_gen_shri_tl(cpu_T[0], cpu_T[0], mask + 1 - shift);
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
break;
}
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
if (op2 != 0) {
/* Compute the flags into CC_SRC. */
gen_compute_eflags(s);
/* The value that was "rotated out" is now present at the other end
of the word. Compute C into CC_DST and O into CC_SRC2. Note that
since we've computed the flags into CC_SRC, these variables are
currently dead. */
if (is_right) {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask - 1);
tcg_gen_shri_tl(cpu_cc_dst, cpu_T[0], mask);
tcg_gen_andi_tl(cpu_cc_dst, cpu_cc_dst, 1);
} else {
tcg_gen_shri_tl(cpu_cc_src2, cpu_T[0], mask);
tcg_gen_andi_tl(cpu_cc_dst, cpu_T[0], 1);
}
tcg_gen_andi_tl(cpu_cc_src2, cpu_cc_src2, 1);
tcg_gen_xor_tl(cpu_cc_src2, cpu_cc_src2, cpu_cc_dst);
set_cc_op(s, CC_OP_ADCOX);
}
}
/* XXX: add faster immediate = 1 case */
static void gen_rotc_rm_T1(DisasContext *s, TCGMemOp ot, int op1,
int is_right)
{
gen_compute_eflags(s);
assert(s->cc_op == CC_OP_EFLAGS);
/* load */
if (op1 == OR_TMP0)
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
else
gen_op_mov_v_reg(ot, cpu_T[0], op1);
if (is_right) {
switch (ot) {
case MO_8:
gen_helper_rcrb(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
case MO_16:
gen_helper_rcrw(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
case MO_32:
gen_helper_rcrl(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
#ifdef TARGET_X86_64
case MO_64:
gen_helper_rcrq(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
#endif
default:
tcg_abort();
}
} else {
switch (ot) {
case MO_8:
gen_helper_rclb(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
case MO_16:
gen_helper_rclw(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
case MO_32:
gen_helper_rcll(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
#ifdef TARGET_X86_64
case MO_64:
gen_helper_rclq(cpu_T[0], cpu_env, cpu_T[0], cpu_T[1]);
break;
#endif
default:
tcg_abort();
}
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
}
/* XXX: add faster immediate case */
static void gen_shiftd_rm_T1(DisasContext *s, TCGMemOp ot, int op1,
bool is_right, TCGv count_in)
{
target_ulong mask = (ot == MO_64 ? 63 : 31);
TCGv count;
/* load */
if (op1 == OR_TMP0) {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], op1);
}
count = tcg_temp_new();
tcg_gen_andi_tl(count, count_in, mask);
switch (ot) {
case MO_16:
/* Note: we implement the Intel behaviour for shift count > 16.
This means "shrdw C, B, A" shifts A:B:A >> C. Build the B:A
portion by constructing it as a 32-bit value. */
if (is_right) {
tcg_gen_deposit_tl(cpu_tmp0, cpu_T[0], cpu_T[1], 16, 16);
tcg_gen_mov_tl(cpu_T[1], cpu_T[0]);
tcg_gen_mov_tl(cpu_T[0], cpu_tmp0);
} else {
tcg_gen_deposit_tl(cpu_T[1], cpu_T[0], cpu_T[1], 16, 16);
}
/* FALLTHRU */
#ifdef TARGET_X86_64
case MO_32:
/* Concatenate the two 32-bit values and use a 64-bit shift. */
tcg_gen_subi_tl(cpu_tmp0, count, 1);
if (is_right) {
tcg_gen_concat_tl_i64(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_shr_i64(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_shr_i64(cpu_T[0], cpu_T[0], count);
} else {
tcg_gen_concat_tl_i64(cpu_T[0], cpu_T[1], cpu_T[0]);
tcg_gen_shl_i64(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_shl_i64(cpu_T[0], cpu_T[0], count);
tcg_gen_shri_i64(cpu_tmp0, cpu_tmp0, 32);
tcg_gen_shri_i64(cpu_T[0], cpu_T[0], 32);
}
break;
#endif
default:
tcg_gen_subi_tl(cpu_tmp0, count, 1);
if (is_right) {
tcg_gen_shr_tl(cpu_tmp0, cpu_T[0], cpu_tmp0);
tcg_gen_subfi_tl(cpu_tmp4, mask + 1, count);
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], count);
tcg_gen_shl_tl(cpu_T[1], cpu_T[1], cpu_tmp4);
} else {
tcg_gen_shl_tl(cpu_tmp0, cpu_T[0], cpu_tmp0);
if (ot == MO_16) {
/* Only needed if count > 16, for Intel behaviour. */
tcg_gen_subfi_tl(cpu_tmp4, 33, count);
tcg_gen_shr_tl(cpu_tmp4, cpu_T[1], cpu_tmp4);
tcg_gen_or_tl(cpu_tmp0, cpu_tmp0, cpu_tmp4);
}
tcg_gen_subfi_tl(cpu_tmp4, mask + 1, count);
tcg_gen_shl_tl(cpu_T[0], cpu_T[0], count);
tcg_gen_shr_tl(cpu_T[1], cpu_T[1], cpu_tmp4);
}
tcg_gen_movi_tl(cpu_tmp4, 0);
tcg_gen_movcond_tl(TCG_COND_EQ, cpu_T[1], count, cpu_tmp4,
cpu_tmp4, cpu_T[1]);
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
break;
}
/* store */
gen_op_st_rm_T0_A0(s, ot, op1);
gen_shift_flags(s, ot, cpu_T[0], cpu_tmp0, count, is_right);
tcg_temp_free(count);
}
static void gen_shift(DisasContext *s1, int op, TCGMemOp ot, int d, int s)
{
if (s != OR_TMP1)
gen_op_mov_v_reg(ot, cpu_T[1], s);
switch(op) {
case OP_ROL:
gen_rot_rm_T1(s1, ot, d, 0);
break;
case OP_ROR:
gen_rot_rm_T1(s1, ot, d, 1);
break;
case OP_SHL:
case OP_SHL1:
gen_shift_rm_T1(s1, ot, d, 0, 0);
break;
case OP_SHR:
gen_shift_rm_T1(s1, ot, d, 1, 0);
break;
case OP_SAR:
gen_shift_rm_T1(s1, ot, d, 1, 1);
break;
case OP_RCL:
gen_rotc_rm_T1(s1, ot, d, 0);
break;
case OP_RCR:
gen_rotc_rm_T1(s1, ot, d, 1);
break;
}
}
static void gen_shifti(DisasContext *s1, int op, TCGMemOp ot, int d, int c)
{
switch(op) {
case OP_ROL:
gen_rot_rm_im(s1, ot, d, c, 0);
break;
case OP_ROR:
gen_rot_rm_im(s1, ot, d, c, 1);
break;
case OP_SHL:
case OP_SHL1:
gen_shift_rm_im(s1, ot, d, c, 0, 0);
break;
case OP_SHR:
gen_shift_rm_im(s1, ot, d, c, 1, 0);
break;
case OP_SAR:
gen_shift_rm_im(s1, ot, d, c, 1, 1);
break;
default:
/* currently not optimized */
tcg_gen_movi_tl(cpu_T[1], c);
gen_shift(s1, op, ot, d, OR_TMP1);
break;
}
}
static void gen_lea_modrm(CPUX86State *env, DisasContext *s, int modrm)
{
target_long disp;
int havesib;
int base;
int index;
int scale;
int mod, rm, code, override, must_add_seg;
TCGv sum;
override = s->override;
must_add_seg = s->addseg;
if (override >= 0)
must_add_seg = 1;
mod = (modrm >> 6) & 3;
rm = modrm & 7;
switch (s->aflag) {
case MO_64:
case MO_32:
havesib = 0;
base = rm;
index = -1;
scale = 0;
if (base == 4) {
havesib = 1;
code = cpu_ldub_code(env, s->pc++);
scale = (code >> 6) & 3;
index = ((code >> 3) & 7) | REX_X(s);
if (index == 4) {
index = -1; /* no index */
}
base = (code & 7);
}
base |= REX_B(s);
switch (mod) {
case 0:
if ((base & 7) == 5) {
base = -1;
disp = (int32_t)cpu_ldl_code(env, s->pc);
s->pc += 4;
if (CODE64(s) && !havesib) {
disp += s->pc + s->rip_offset;
}
} else {
disp = 0;
}
break;
case 1:
disp = (int8_t)cpu_ldub_code(env, s->pc++);
break;
default:
case 2:
disp = (int32_t)cpu_ldl_code(env, s->pc);
s->pc += 4;
break;
}
/* For correct popl handling with esp. */
if (base == R_ESP && s->popl_esp_hack) {
disp += s->popl_esp_hack;
}
/* Compute the address, with a minimum number of TCG ops. */
TCGV_UNUSED(sum);
if (index >= 0) {
if (scale == 0) {
sum = cpu_regs[index];
} else {
tcg_gen_shli_tl(cpu_A0, cpu_regs[index], scale);
sum = cpu_A0;
}
if (base >= 0) {
tcg_gen_add_tl(cpu_A0, sum, cpu_regs[base]);
sum = cpu_A0;
}
} else if (base >= 0) {
sum = cpu_regs[base];
}
if (TCGV_IS_UNUSED(sum)) {
tcg_gen_movi_tl(cpu_A0, disp);
} else {
tcg_gen_addi_tl(cpu_A0, sum, disp);
}
if (must_add_seg) {
if (override < 0) {
if (base == R_EBP || base == R_ESP) {
override = R_SS;
} else {
override = R_DS;
}
}
tcg_gen_ld_tl(cpu_tmp0, cpu_env,
offsetof(CPUX86State, segs[override].base));
if (CODE64(s)) {
if (s->aflag == MO_32) {
tcg_gen_ext32u_tl(cpu_A0, cpu_A0);
}
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
return;
}
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
}
if (s->aflag == MO_32) {
tcg_gen_ext32u_tl(cpu_A0, cpu_A0);
}
break;
case MO_16:
switch (mod) {
case 0:
if (rm == 6) {
disp = cpu_lduw_code(env, s->pc);
s->pc += 2;
tcg_gen_movi_tl(cpu_A0, disp);
rm = 0; /* avoid SS override */
goto no_rm;
} else {
disp = 0;
}
break;
case 1:
disp = (int8_t)cpu_ldub_code(env, s->pc++);
break;
default:
case 2:
disp = (int16_t)cpu_lduw_code(env, s->pc);
s->pc += 2;
break;
}
sum = cpu_A0;
switch (rm) {
case 0:
tcg_gen_add_tl(cpu_A0, cpu_regs[R_EBX], cpu_regs[R_ESI]);
break;
case 1:
tcg_gen_add_tl(cpu_A0, cpu_regs[R_EBX], cpu_regs[R_EDI]);
break;
case 2:
tcg_gen_add_tl(cpu_A0, cpu_regs[R_EBP], cpu_regs[R_ESI]);
break;
case 3:
tcg_gen_add_tl(cpu_A0, cpu_regs[R_EBP], cpu_regs[R_EDI]);
break;
case 4:
sum = cpu_regs[R_ESI];
break;
case 5:
sum = cpu_regs[R_EDI];
break;
case 6:
sum = cpu_regs[R_EBP];
break;
default:
case 7:
sum = cpu_regs[R_EBX];
break;
}
tcg_gen_addi_tl(cpu_A0, sum, disp);
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
no_rm:
if (must_add_seg) {
if (override < 0) {
if (rm == 2 || rm == 3 || rm == 6) {
override = R_SS;
} else {
override = R_DS;
}
}
gen_op_addl_A0_seg(s, override);
}
break;
default:
tcg_abort();
}
}
static void gen_nop_modrm(CPUX86State *env, DisasContext *s, int modrm)
{
int mod, rm, base, code;
mod = (modrm >> 6) & 3;
if (mod == 3)
return;
rm = modrm & 7;
switch (s->aflag) {
case MO_64:
case MO_32:
base = rm;
if (base == 4) {
code = cpu_ldub_code(env, s->pc++);
base = (code & 7);
}
switch (mod) {
case 0:
if (base == 5) {
s->pc += 4;
}
break;
case 1:
s->pc++;
break;
default:
case 2:
s->pc += 4;
break;
}
break;
case MO_16:
switch (mod) {
case 0:
if (rm == 6) {
s->pc += 2;
}
break;
case 1:
s->pc++;
break;
default:
case 2:
s->pc += 2;
break;
}
break;
default:
tcg_abort();
}
}
/* used for LEA and MOV AX, mem */
static void gen_add_A0_ds_seg(DisasContext *s)
{
int override, must_add_seg;
must_add_seg = s->addseg;
override = R_DS;
if (s->override >= 0) {
override = s->override;
must_add_seg = 1;
}
if (must_add_seg) {
#ifdef TARGET_X86_64
if (CODE64(s)) {
gen_op_addq_A0_seg(override);
} else
#endif
{
gen_op_addl_A0_seg(s, override);
}
}
}
/* generate modrm memory load or store of 'reg'. TMP0 is used if reg ==
OR_TMP0 */
static void gen_ldst_modrm(CPUX86State *env, DisasContext *s, int modrm,
TCGMemOp ot, int reg, int is_store)
{
int mod, rm;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
if (mod == 3) {
if (is_store) {
if (reg != OR_TMP0)
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
if (reg != OR_TMP0)
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
}
} else {
gen_lea_modrm(env, s, modrm);
if (is_store) {
if (reg != OR_TMP0)
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
if (reg != OR_TMP0)
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
}
}
}
static inline uint32_t insn_get(CPUX86State *env, DisasContext *s, TCGMemOp ot)
{
uint32_t ret;
switch (ot) {
case MO_8:
ret = cpu_ldub_code(env, s->pc);
s->pc++;
break;
case MO_16:
ret = cpu_lduw_code(env, s->pc);
s->pc += 2;
break;
case MO_32:
#ifdef TARGET_X86_64
case MO_64:
#endif
ret = cpu_ldl_code(env, s->pc);
s->pc += 4;
break;
default:
tcg_abort();
}
return ret;
}
static inline int insn_const_size(TCGMemOp ot)
{
if (ot <= MO_32) {
return 1 << ot;
} else {
return 4;
}
}
static inline void gen_goto_tb(DisasContext *s, int tb_num, target_ulong eip)
{
TranslationBlock *tb;
target_ulong pc;
pc = s->cs_base + eip;
tb = s->tb;
/* NOTE: we handle the case where the TB spans two pages here */
if ((pc & TARGET_PAGE_MASK) == (tb->pc & TARGET_PAGE_MASK) ||
(pc & TARGET_PAGE_MASK) == ((s->pc - 1) & TARGET_PAGE_MASK)) {
/* jump to same page: we can use a direct jump */
tcg_gen_goto_tb(tb_num);
gen_jmp_im(eip);
tcg_gen_exit_tb((uintptr_t)tb + tb_num);
} else {
/* jump to another page: currently not optimized */
gen_jmp_im(eip);
gen_eob(s);
}
}
static inline void gen_jcc(DisasContext *s, int b,
target_ulong val, target_ulong next_eip)
{
int l1, l2;
if (s->jmp_opt) {
l1 = gen_new_label();
gen_jcc1(s, b, l1);
gen_goto_tb(s, 0, next_eip);
gen_set_label(l1);
gen_goto_tb(s, 1, val);
s->is_jmp = DISAS_TB_JUMP;
} else {
l1 = gen_new_label();
l2 = gen_new_label();
gen_jcc1(s, b, l1);
gen_jmp_im(next_eip);
tcg_gen_br(l2);
gen_set_label(l1);
gen_jmp_im(val);
gen_set_label(l2);
gen_eob(s);
}
}
static void gen_cmovcc1(CPUX86State *env, DisasContext *s, TCGMemOp ot, int b,
int modrm, int reg)
{
CCPrepare cc;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
cc = gen_prepare_cc(s, b, cpu_T[1]);
if (cc.mask != -1) {
TCGv t0 = tcg_temp_new();
tcg_gen_andi_tl(t0, cc.reg, cc.mask);
cc.reg = t0;
}
if (!cc.use_reg2) {
cc.reg2 = tcg_const_tl(cc.imm);
}
tcg_gen_movcond_tl(cc.cond, cpu_T[0], cc.reg, cc.reg2,
cpu_T[0], cpu_regs[reg]);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
if (cc.mask != -1) {
tcg_temp_free(cc.reg);
}
if (!cc.use_reg2) {
tcg_temp_free(cc.reg2);
}
}
static inline void gen_op_movl_T0_seg(int seg_reg)
{
tcg_gen_ld32u_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,segs[seg_reg].selector));
}
static inline void gen_op_movl_seg_T0_vm(int seg_reg)
{
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffff);
tcg_gen_st32_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,segs[seg_reg].selector));
tcg_gen_shli_tl(cpu_T[0], cpu_T[0], 4);
tcg_gen_st_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,segs[seg_reg].base));
}
/* move T0 to seg_reg and compute if the CPU state may change. Never
call this function with seg_reg == R_CS */
static void gen_movl_seg_T0(DisasContext *s, int seg_reg, target_ulong cur_eip)
{
if (s->pe && !s->vm86) {
/* XXX: optimize by finding processor state dynamically */
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_load_seg(cpu_env, tcg_const_i32(seg_reg), cpu_tmp2_i32);
/* abort translation because the addseg value may change or
because ss32 may change. For R_SS, translation must always
stop as a special handling must be done to disable hardware
interrupts for the next instruction */
if (seg_reg == R_SS || (s->code32 && seg_reg < R_FS))
s->is_jmp = DISAS_TB_JUMP;
} else {
gen_op_movl_seg_T0_vm(seg_reg);
if (seg_reg == R_SS)
s->is_jmp = DISAS_TB_JUMP;
}
}
static inline int svm_is_rep(int prefixes)
{
return ((prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) ? 8 : 0);
}
static inline void
gen_svm_check_intercept_param(DisasContext *s, target_ulong pc_start,
uint32_t type, uint64_t param)
{
/* no SVM activated; fast case */
if (likely(!(s->flags & HF_SVMI_MASK)))
return;
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_svm_check_intercept_param(cpu_env, tcg_const_i32(type),
tcg_const_i64(param));
}
static inline void
gen_svm_check_intercept(DisasContext *s, target_ulong pc_start, uint64_t type)
{
gen_svm_check_intercept_param(s, pc_start, type, 0);
}
static inline void gen_stack_update(DisasContext *s, int addend)
{
#ifdef TARGET_X86_64
if (CODE64(s)) {
gen_op_add_reg_im(MO_64, R_ESP, addend);
} else
#endif
if (s->ss32) {
gen_op_add_reg_im(MO_32, R_ESP, addend);
} else {
gen_op_add_reg_im(MO_16, R_ESP, addend);
}
}
/* Generate a push. It depends on ss32, addseg and dflag. */
static void gen_push_v(DisasContext *s, TCGv val)
{
TCGMemOp a_ot, d_ot = mo_pushpop(s, s->dflag);
int size = 1 << d_ot;
TCGv new_esp = cpu_A0;
tcg_gen_subi_tl(cpu_A0, cpu_regs[R_ESP], size);
if (CODE64(s)) {
a_ot = MO_64;
} else if (s->ss32) {
a_ot = MO_32;
if (s->addseg) {
new_esp = cpu_tmp4;
tcg_gen_mov_tl(new_esp, cpu_A0);
gen_op_addl_A0_seg(s, R_SS);
} else {
tcg_gen_ext32u_tl(cpu_A0, cpu_A0);
}
} else {
a_ot = MO_16;
new_esp = cpu_tmp4;
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(new_esp, cpu_A0);
gen_op_addl_A0_seg(s, R_SS);
}
gen_op_st_v(s, d_ot, val, cpu_A0);
gen_op_mov_reg_v(a_ot, R_ESP, new_esp);
}
/* two step pop is necessary for precise exceptions */
static TCGMemOp gen_pop_T0(DisasContext *s)
{
TCGMemOp d_ot = mo_pushpop(s, s->dflag);
TCGv addr = cpu_A0;
if (CODE64(s)) {
addr = cpu_regs[R_ESP];
} else if (!s->ss32) {
tcg_gen_ext16u_tl(cpu_A0, cpu_regs[R_ESP]);
gen_op_addl_A0_seg(s, R_SS);
} else if (s->addseg) {
tcg_gen_mov_tl(cpu_A0, cpu_regs[R_ESP]);
gen_op_addl_A0_seg(s, R_SS);
} else {
tcg_gen_ext32u_tl(cpu_A0, cpu_regs[R_ESP]);
}
gen_op_ld_v(s, d_ot, cpu_T[0], addr);
return d_ot;
}
static void gen_pop_update(DisasContext *s, TCGMemOp ot)
{
gen_stack_update(s, 1 << ot);
}
static void gen_stack_A0(DisasContext *s)
{
gen_op_movl_A0_reg(R_ESP);
if (!s->ss32)
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
if (s->addseg)
gen_op_addl_A0_seg(s, R_SS);
}
/* NOTE: wrap around in 16 bit not fully handled */
static void gen_pusha(DisasContext *s)
{
int i;
gen_op_movl_A0_reg(R_ESP);
gen_op_addl_A0_im(-8 << s->dflag);
if (!s->ss32)
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
if (s->addseg)
gen_op_addl_A0_seg(s, R_SS);
for(i = 0;i < 8; i++) {
gen_op_mov_v_reg(MO_32, cpu_T[0], 7 - i);
gen_op_st_v(s, s->dflag, cpu_T[0], cpu_A0);
gen_op_addl_A0_im(1 << s->dflag);
}
gen_op_mov_reg_v(MO_16 + s->ss32, R_ESP, cpu_T[1]);
}
/* NOTE: wrap around in 16 bit not fully handled */
static void gen_popa(DisasContext *s)
{
int i;
gen_op_movl_A0_reg(R_ESP);
if (!s->ss32)
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
tcg_gen_addi_tl(cpu_T[1], cpu_T[1], 8 << s->dflag);
if (s->addseg)
gen_op_addl_A0_seg(s, R_SS);
for(i = 0;i < 8; i++) {
/* ESP is not reloaded */
if (i != 3) {
gen_op_ld_v(s, s->dflag, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(s->dflag, 7 - i, cpu_T[0]);
}
gen_op_addl_A0_im(1 << s->dflag);
}
gen_op_mov_reg_v(MO_16 + s->ss32, R_ESP, cpu_T[1]);
}
static void gen_enter(DisasContext *s, int esp_addend, int level)
{
TCGMemOp ot = mo_pushpop(s, s->dflag);
int opsize = 1 << ot;
level &= 0x1f;
#ifdef TARGET_X86_64
if (CODE64(s)) {
gen_op_movl_A0_reg(R_ESP);
gen_op_addq_A0_im(-opsize);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
/* push bp */
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EBP);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
if (level) {
/* XXX: must save state */
gen_helper_enter64_level(cpu_env, tcg_const_i32(level),
tcg_const_i32((ot == MO_64)),
cpu_T[1]);
}
gen_op_mov_reg_v(ot, R_EBP, cpu_T[1]);
tcg_gen_addi_tl(cpu_T[1], cpu_T[1], -esp_addend + (-opsize * level));
gen_op_mov_reg_v(MO_64, R_ESP, cpu_T[1]);
} else
#endif
{
gen_op_movl_A0_reg(R_ESP);
gen_op_addl_A0_im(-opsize);
if (!s->ss32)
tcg_gen_ext16u_tl(cpu_A0, cpu_A0);
tcg_gen_mov_tl(cpu_T[1], cpu_A0);
if (s->addseg)
gen_op_addl_A0_seg(s, R_SS);
/* push bp */
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EBP);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
if (level) {
/* XXX: must save state */
gen_helper_enter_level(cpu_env, tcg_const_i32(level),
tcg_const_i32(s->dflag - 1),
cpu_T[1]);
}
gen_op_mov_reg_v(ot, R_EBP, cpu_T[1]);
tcg_gen_addi_tl(cpu_T[1], cpu_T[1], -esp_addend + (-opsize * level));
gen_op_mov_reg_v(MO_16 + s->ss32, R_ESP, cpu_T[1]);
}
}
static void gen_exception(DisasContext *s, int trapno, target_ulong cur_eip)
{
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
gen_helper_raise_exception(cpu_env, tcg_const_i32(trapno));
s->is_jmp = DISAS_TB_JUMP;
}
/* an interrupt is different from an exception because of the
privilege checks */
static void gen_interrupt(DisasContext *s, int intno,
target_ulong cur_eip, target_ulong next_eip)
{
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
gen_helper_raise_interrupt(cpu_env, tcg_const_i32(intno),
tcg_const_i32(next_eip - cur_eip));
s->is_jmp = DISAS_TB_JUMP;
}
static void gen_debug(DisasContext *s, target_ulong cur_eip)
{
gen_update_cc_op(s);
gen_jmp_im(cur_eip);
gen_helper_debug(cpu_env);
s->is_jmp = DISAS_TB_JUMP;
}
/* generate a generic end of block. Trace exception is also generated
if needed */
static void gen_eob(DisasContext *s)
{
gen_update_cc_op(s);
if (s->tb->flags & HF_INHIBIT_IRQ_MASK) {
gen_helper_reset_inhibit_irq(cpu_env);
}
if (s->tb->flags & HF_RF_MASK) {
gen_helper_reset_rf(cpu_env);
}
if (s->singlestep_enabled) {
gen_helper_debug(cpu_env);
} else if (s->tf) {
gen_helper_single_step(cpu_env);
} else {
tcg_gen_exit_tb(0);
}
s->is_jmp = DISAS_TB_JUMP;
}
/* generate a jump to eip. No segment change must happen before as a
direct call to the next block may occur */
static void gen_jmp_tb(DisasContext *s, target_ulong eip, int tb_num)
{
gen_update_cc_op(s);
set_cc_op(s, CC_OP_DYNAMIC);
if (s->jmp_opt) {
gen_goto_tb(s, tb_num, eip);
s->is_jmp = DISAS_TB_JUMP;
} else {
gen_jmp_im(eip);
gen_eob(s);
}
}
static void gen_jmp(DisasContext *s, target_ulong eip)
{
gen_jmp_tb(s, eip, 0);
}
static inline void gen_ldq_env_A0(DisasContext *s, int offset)
{
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0, s->mem_index, MO_LEQ);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, offset);
}
static inline void gen_stq_env_A0(DisasContext *s, int offset)
{
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, offset);
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0, s->mem_index, MO_LEQ);
}
static inline void gen_ldo_env_A0(DisasContext *s, int offset)
{
int mem_index = s->mem_index;
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0, mem_index, MO_LEQ);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, offset + offsetof(XMMReg, XMM_Q(0)));
tcg_gen_addi_tl(cpu_tmp0, cpu_A0, 8);
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_tmp0, mem_index, MO_LEQ);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, offset + offsetof(XMMReg, XMM_Q(1)));
}
static inline void gen_sto_env_A0(DisasContext *s, int offset)
{
int mem_index = s->mem_index;
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, offset + offsetof(XMMReg, XMM_Q(0)));
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0, mem_index, MO_LEQ);
tcg_gen_addi_tl(cpu_tmp0, cpu_A0, 8);
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, offset + offsetof(XMMReg, XMM_Q(1)));
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_tmp0, mem_index, MO_LEQ);
}
static inline void gen_op_movo(int d_offset, int s_offset)
{
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, s_offset);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, d_offset);
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, s_offset + 8);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, d_offset + 8);
}
static inline void gen_op_movq(int d_offset, int s_offset)
{
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env, s_offset);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, d_offset);
}
static inline void gen_op_movl(int d_offset, int s_offset)
{
tcg_gen_ld_i32(cpu_tmp2_i32, cpu_env, s_offset);
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env, d_offset);
}
static inline void gen_op_movq_env_0(int d_offset)
{
tcg_gen_movi_i64(cpu_tmp1_i64, 0);
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env, d_offset);
}
typedef void (*SSEFunc_i_ep)(TCGv_i32 val, TCGv_ptr env, TCGv_ptr reg);
typedef void (*SSEFunc_l_ep)(TCGv_i64 val, TCGv_ptr env, TCGv_ptr reg);
typedef void (*SSEFunc_0_epi)(TCGv_ptr env, TCGv_ptr reg, TCGv_i32 val);
typedef void (*SSEFunc_0_epl)(TCGv_ptr env, TCGv_ptr reg, TCGv_i64 val);
typedef void (*SSEFunc_0_epp)(TCGv_ptr env, TCGv_ptr reg_a, TCGv_ptr reg_b);
typedef void (*SSEFunc_0_eppi)(TCGv_ptr env, TCGv_ptr reg_a, TCGv_ptr reg_b,
TCGv_i32 val);
typedef void (*SSEFunc_0_ppi)(TCGv_ptr reg_a, TCGv_ptr reg_b, TCGv_i32 val);
typedef void (*SSEFunc_0_eppt)(TCGv_ptr env, TCGv_ptr reg_a, TCGv_ptr reg_b,
TCGv val);
#define SSE_SPECIAL ((void *)1)
#define SSE_DUMMY ((void *)2)
#define MMX_OP2(x) { gen_helper_ ## x ## _mmx, gen_helper_ ## x ## _xmm }
#define SSE_FOP(x) { gen_helper_ ## x ## ps, gen_helper_ ## x ## pd, \
gen_helper_ ## x ## ss, gen_helper_ ## x ## sd, }
static const SSEFunc_0_epp sse_op_table1[256][4] = {
/* 3DNow! extensions */
[0x0e] = { SSE_DUMMY }, /* femms */
[0x0f] = { SSE_DUMMY }, /* pf... */
/* pure SSE operations */
[0x10] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movups, movupd, movss, movsd */
[0x11] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movups, movupd, movss, movsd */
[0x12] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movlps, movlpd, movsldup, movddup */
[0x13] = { SSE_SPECIAL, SSE_SPECIAL }, /* movlps, movlpd */
[0x14] = { gen_helper_punpckldq_xmm, gen_helper_punpcklqdq_xmm },
[0x15] = { gen_helper_punpckhdq_xmm, gen_helper_punpckhqdq_xmm },
[0x16] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movhps, movhpd, movshdup */
[0x17] = { SSE_SPECIAL, SSE_SPECIAL }, /* movhps, movhpd */
[0x28] = { SSE_SPECIAL, SSE_SPECIAL }, /* movaps, movapd */
[0x29] = { SSE_SPECIAL, SSE_SPECIAL }, /* movaps, movapd */
[0x2a] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtpi2ps, cvtpi2pd, cvtsi2ss, cvtsi2sd */
[0x2b] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movntps, movntpd, movntss, movntsd */
[0x2c] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvttps2pi, cvttpd2pi, cvttsd2si, cvttss2si */
[0x2d] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* cvtps2pi, cvtpd2pi, cvtsd2si, cvtss2si */
[0x2e] = { gen_helper_ucomiss, gen_helper_ucomisd },
[0x2f] = { gen_helper_comiss, gen_helper_comisd },
[0x50] = { SSE_SPECIAL, SSE_SPECIAL }, /* movmskps, movmskpd */
[0x51] = SSE_FOP(sqrt),
[0x52] = { gen_helper_rsqrtps, NULL, gen_helper_rsqrtss, NULL },
[0x53] = { gen_helper_rcpps, NULL, gen_helper_rcpss, NULL },
[0x54] = { gen_helper_pand_xmm, gen_helper_pand_xmm }, /* andps, andpd */
[0x55] = { gen_helper_pandn_xmm, gen_helper_pandn_xmm }, /* andnps, andnpd */
[0x56] = { gen_helper_por_xmm, gen_helper_por_xmm }, /* orps, orpd */
[0x57] = { gen_helper_pxor_xmm, gen_helper_pxor_xmm }, /* xorps, xorpd */
[0x58] = SSE_FOP(add),
[0x59] = SSE_FOP(mul),
[0x5a] = { gen_helper_cvtps2pd, gen_helper_cvtpd2ps,
gen_helper_cvtss2sd, gen_helper_cvtsd2ss },
[0x5b] = { gen_helper_cvtdq2ps, gen_helper_cvtps2dq, gen_helper_cvttps2dq },
[0x5c] = SSE_FOP(sub),
[0x5d] = SSE_FOP(min),
[0x5e] = SSE_FOP(div),
[0x5f] = SSE_FOP(max),
[0xc2] = SSE_FOP(cmpeq),
[0xc6] = { (SSEFunc_0_epp)gen_helper_shufps,
(SSEFunc_0_epp)gen_helper_shufpd }, /* XXX: casts */
/* SSSE3, SSE4, MOVBE, CRC32, BMI1, BMI2, ADX. */
[0x38] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
[0x3a] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
/* MMX ops and their SSE extensions */
[0x60] = MMX_OP2(punpcklbw),
[0x61] = MMX_OP2(punpcklwd),
[0x62] = MMX_OP2(punpckldq),
[0x63] = MMX_OP2(packsswb),
[0x64] = MMX_OP2(pcmpgtb),
[0x65] = MMX_OP2(pcmpgtw),
[0x66] = MMX_OP2(pcmpgtl),
[0x67] = MMX_OP2(packuswb),
[0x68] = MMX_OP2(punpckhbw),
[0x69] = MMX_OP2(punpckhwd),
[0x6a] = MMX_OP2(punpckhdq),
[0x6b] = MMX_OP2(packssdw),
[0x6c] = { NULL, gen_helper_punpcklqdq_xmm },
[0x6d] = { NULL, gen_helper_punpckhqdq_xmm },
[0x6e] = { SSE_SPECIAL, SSE_SPECIAL }, /* movd mm, ea */
[0x6f] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movq, movdqa, , movqdu */
[0x70] = { (SSEFunc_0_epp)gen_helper_pshufw_mmx,
(SSEFunc_0_epp)gen_helper_pshufd_xmm,
(SSEFunc_0_epp)gen_helper_pshufhw_xmm,
(SSEFunc_0_epp)gen_helper_pshuflw_xmm }, /* XXX: casts */
[0x71] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftw */
[0x72] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftd */
[0x73] = { SSE_SPECIAL, SSE_SPECIAL }, /* shiftq */
[0x74] = MMX_OP2(pcmpeqb),
[0x75] = MMX_OP2(pcmpeqw),
[0x76] = MMX_OP2(pcmpeql),
[0x77] = { SSE_DUMMY }, /* emms */
[0x78] = { NULL, SSE_SPECIAL, NULL, SSE_SPECIAL }, /* extrq_i, insertq_i */
[0x79] = { NULL, gen_helper_extrq_r, NULL, gen_helper_insertq_r },
[0x7c] = { NULL, gen_helper_haddpd, NULL, gen_helper_haddps },
[0x7d] = { NULL, gen_helper_hsubpd, NULL, gen_helper_hsubps },
[0x7e] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movd, movd, , movq */
[0x7f] = { SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL }, /* movq, movdqa, movdqu */
[0xc4] = { SSE_SPECIAL, SSE_SPECIAL }, /* pinsrw */
[0xc5] = { SSE_SPECIAL, SSE_SPECIAL }, /* pextrw */
[0xd0] = { NULL, gen_helper_addsubpd, NULL, gen_helper_addsubps },
[0xd1] = MMX_OP2(psrlw),
[0xd2] = MMX_OP2(psrld),
[0xd3] = MMX_OP2(psrlq),
[0xd4] = MMX_OP2(paddq),
[0xd5] = MMX_OP2(pmullw),
[0xd6] = { NULL, SSE_SPECIAL, SSE_SPECIAL, SSE_SPECIAL },
[0xd7] = { SSE_SPECIAL, SSE_SPECIAL }, /* pmovmskb */
[0xd8] = MMX_OP2(psubusb),
[0xd9] = MMX_OP2(psubusw),
[0xda] = MMX_OP2(pminub),
[0xdb] = MMX_OP2(pand),
[0xdc] = MMX_OP2(paddusb),
[0xdd] = MMX_OP2(paddusw),
[0xde] = MMX_OP2(pmaxub),
[0xdf] = MMX_OP2(pandn),
[0xe0] = MMX_OP2(pavgb),
[0xe1] = MMX_OP2(psraw),
[0xe2] = MMX_OP2(psrad),
[0xe3] = MMX_OP2(pavgw),
[0xe4] = MMX_OP2(pmulhuw),
[0xe5] = MMX_OP2(pmulhw),
[0xe6] = { NULL, gen_helper_cvttpd2dq, gen_helper_cvtdq2pd, gen_helper_cvtpd2dq },
[0xe7] = { SSE_SPECIAL , SSE_SPECIAL }, /* movntq, movntq */
[0xe8] = MMX_OP2(psubsb),
[0xe9] = MMX_OP2(psubsw),
[0xea] = MMX_OP2(pminsw),
[0xeb] = MMX_OP2(por),
[0xec] = MMX_OP2(paddsb),
[0xed] = MMX_OP2(paddsw),
[0xee] = MMX_OP2(pmaxsw),
[0xef] = MMX_OP2(pxor),
[0xf0] = { NULL, NULL, NULL, SSE_SPECIAL }, /* lddqu */
[0xf1] = MMX_OP2(psllw),
[0xf2] = MMX_OP2(pslld),
[0xf3] = MMX_OP2(psllq),
[0xf4] = MMX_OP2(pmuludq),
[0xf5] = MMX_OP2(pmaddwd),
[0xf6] = MMX_OP2(psadbw),
[0xf7] = { (SSEFunc_0_epp)gen_helper_maskmov_mmx,
(SSEFunc_0_epp)gen_helper_maskmov_xmm }, /* XXX: casts */
[0xf8] = MMX_OP2(psubb),
[0xf9] = MMX_OP2(psubw),
[0xfa] = MMX_OP2(psubl),
[0xfb] = MMX_OP2(psubq),
[0xfc] = MMX_OP2(paddb),
[0xfd] = MMX_OP2(paddw),
[0xfe] = MMX_OP2(paddl),
};
static const SSEFunc_0_epp sse_op_table2[3 * 8][2] = {
[0 + 2] = MMX_OP2(psrlw),
[0 + 4] = MMX_OP2(psraw),
[0 + 6] = MMX_OP2(psllw),
[8 + 2] = MMX_OP2(psrld),
[8 + 4] = MMX_OP2(psrad),
[8 + 6] = MMX_OP2(pslld),
[16 + 2] = MMX_OP2(psrlq),
[16 + 3] = { NULL, gen_helper_psrldq_xmm },
[16 + 6] = MMX_OP2(psllq),
[16 + 7] = { NULL, gen_helper_pslldq_xmm },
};
static const SSEFunc_0_epi sse_op_table3ai[] = {
gen_helper_cvtsi2ss,
gen_helper_cvtsi2sd
};
#ifdef TARGET_X86_64
static const SSEFunc_0_epl sse_op_table3aq[] = {
gen_helper_cvtsq2ss,
gen_helper_cvtsq2sd
};
#endif
static const SSEFunc_i_ep sse_op_table3bi[] = {
gen_helper_cvttss2si,
gen_helper_cvtss2si,
gen_helper_cvttsd2si,
gen_helper_cvtsd2si
};
#ifdef TARGET_X86_64
static const SSEFunc_l_ep sse_op_table3bq[] = {
gen_helper_cvttss2sq,
gen_helper_cvtss2sq,
gen_helper_cvttsd2sq,
gen_helper_cvtsd2sq
};
#endif
static const SSEFunc_0_epp sse_op_table4[8][4] = {
SSE_FOP(cmpeq),
SSE_FOP(cmplt),
SSE_FOP(cmple),
SSE_FOP(cmpunord),
SSE_FOP(cmpneq),
SSE_FOP(cmpnlt),
SSE_FOP(cmpnle),
SSE_FOP(cmpord),
};
static const SSEFunc_0_epp sse_op_table5[256] = {
[0x0c] = gen_helper_pi2fw,
[0x0d] = gen_helper_pi2fd,
[0x1c] = gen_helper_pf2iw,
[0x1d] = gen_helper_pf2id,
[0x8a] = gen_helper_pfnacc,
[0x8e] = gen_helper_pfpnacc,
[0x90] = gen_helper_pfcmpge,
[0x94] = gen_helper_pfmin,
[0x96] = gen_helper_pfrcp,
[0x97] = gen_helper_pfrsqrt,
[0x9a] = gen_helper_pfsub,
[0x9e] = gen_helper_pfadd,
[0xa0] = gen_helper_pfcmpgt,
[0xa4] = gen_helper_pfmax,
[0xa6] = gen_helper_movq, /* pfrcpit1; no need to actually increase precision */
[0xa7] = gen_helper_movq, /* pfrsqit1 */
[0xaa] = gen_helper_pfsubr,
[0xae] = gen_helper_pfacc,
[0xb0] = gen_helper_pfcmpeq,
[0xb4] = gen_helper_pfmul,
[0xb6] = gen_helper_movq, /* pfrcpit2 */
[0xb7] = gen_helper_pmulhrw_mmx,
[0xbb] = gen_helper_pswapd,
[0xbf] = gen_helper_pavgb_mmx /* pavgusb */
};
struct SSEOpHelper_epp {
SSEFunc_0_epp op[2];
uint32_t ext_mask;
};
struct SSEOpHelper_eppi {
SSEFunc_0_eppi op[2];
uint32_t ext_mask;
};
#define SSSE3_OP(x) { MMX_OP2(x), CPUID_EXT_SSSE3 }
#define SSE41_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, CPUID_EXT_SSE41 }
#define SSE42_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, CPUID_EXT_SSE42 }
#define SSE41_SPECIAL { { NULL, SSE_SPECIAL }, CPUID_EXT_SSE41 }
#define PCLMULQDQ_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, \
CPUID_EXT_PCLMULQDQ }
#define AESNI_OP(x) { { NULL, gen_helper_ ## x ## _xmm }, CPUID_EXT_AES }
static const struct SSEOpHelper_epp sse_op_table6[256] = {
[0x00] = SSSE3_OP(pshufb),
[0x01] = SSSE3_OP(phaddw),
[0x02] = SSSE3_OP(phaddd),
[0x03] = SSSE3_OP(phaddsw),
[0x04] = SSSE3_OP(pmaddubsw),
[0x05] = SSSE3_OP(phsubw),
[0x06] = SSSE3_OP(phsubd),
[0x07] = SSSE3_OP(phsubsw),
[0x08] = SSSE3_OP(psignb),
[0x09] = SSSE3_OP(psignw),
[0x0a] = SSSE3_OP(psignd),
[0x0b] = SSSE3_OP(pmulhrsw),
[0x10] = SSE41_OP(pblendvb),
[0x14] = SSE41_OP(blendvps),
[0x15] = SSE41_OP(blendvpd),
[0x17] = SSE41_OP(ptest),
[0x1c] = SSSE3_OP(pabsb),
[0x1d] = SSSE3_OP(pabsw),
[0x1e] = SSSE3_OP(pabsd),
[0x20] = SSE41_OP(pmovsxbw),
[0x21] = SSE41_OP(pmovsxbd),
[0x22] = SSE41_OP(pmovsxbq),
[0x23] = SSE41_OP(pmovsxwd),
[0x24] = SSE41_OP(pmovsxwq),
[0x25] = SSE41_OP(pmovsxdq),
[0x28] = SSE41_OP(pmuldq),
[0x29] = SSE41_OP(pcmpeqq),
[0x2a] = SSE41_SPECIAL, /* movntqda */
[0x2b] = SSE41_OP(packusdw),
[0x30] = SSE41_OP(pmovzxbw),
[0x31] = SSE41_OP(pmovzxbd),
[0x32] = SSE41_OP(pmovzxbq),
[0x33] = SSE41_OP(pmovzxwd),
[0x34] = SSE41_OP(pmovzxwq),
[0x35] = SSE41_OP(pmovzxdq),
[0x37] = SSE42_OP(pcmpgtq),
[0x38] = SSE41_OP(pminsb),
[0x39] = SSE41_OP(pminsd),
[0x3a] = SSE41_OP(pminuw),
[0x3b] = SSE41_OP(pminud),
[0x3c] = SSE41_OP(pmaxsb),
[0x3d] = SSE41_OP(pmaxsd),
[0x3e] = SSE41_OP(pmaxuw),
[0x3f] = SSE41_OP(pmaxud),
[0x40] = SSE41_OP(pmulld),
[0x41] = SSE41_OP(phminposuw),
[0xdb] = AESNI_OP(aesimc),
[0xdc] = AESNI_OP(aesenc),
[0xdd] = AESNI_OP(aesenclast),
[0xde] = AESNI_OP(aesdec),
[0xdf] = AESNI_OP(aesdeclast),
};
static const struct SSEOpHelper_eppi sse_op_table7[256] = {
[0x08] = SSE41_OP(roundps),
[0x09] = SSE41_OP(roundpd),
[0x0a] = SSE41_OP(roundss),
[0x0b] = SSE41_OP(roundsd),
[0x0c] = SSE41_OP(blendps),
[0x0d] = SSE41_OP(blendpd),
[0x0e] = SSE41_OP(pblendw),
[0x0f] = SSSE3_OP(palignr),
[0x14] = SSE41_SPECIAL, /* pextrb */
[0x15] = SSE41_SPECIAL, /* pextrw */
[0x16] = SSE41_SPECIAL, /* pextrd/pextrq */
[0x17] = SSE41_SPECIAL, /* extractps */
[0x20] = SSE41_SPECIAL, /* pinsrb */
[0x21] = SSE41_SPECIAL, /* insertps */
[0x22] = SSE41_SPECIAL, /* pinsrd/pinsrq */
[0x40] = SSE41_OP(dpps),
[0x41] = SSE41_OP(dppd),
[0x42] = SSE41_OP(mpsadbw),
[0x44] = PCLMULQDQ_OP(pclmulqdq),
[0x60] = SSE42_OP(pcmpestrm),
[0x61] = SSE42_OP(pcmpestri),
[0x62] = SSE42_OP(pcmpistrm),
[0x63] = SSE42_OP(pcmpistri),
[0xdf] = AESNI_OP(aeskeygenassist),
};
static void gen_sse(CPUX86State *env, DisasContext *s, int b,
target_ulong pc_start, int rex_r)
{
int b1, op1_offset, op2_offset, is_xmm, val;
int modrm, mod, rm, reg;
SSEFunc_0_epp sse_fn_epp;
SSEFunc_0_eppi sse_fn_eppi;
SSEFunc_0_ppi sse_fn_ppi;
SSEFunc_0_eppt sse_fn_eppt;
TCGMemOp ot;
b &= 0xff;
if (s->prefix & PREFIX_DATA)
b1 = 1;
else if (s->prefix & PREFIX_REPZ)
b1 = 2;
else if (s->prefix & PREFIX_REPNZ)
b1 = 3;
else
b1 = 0;
sse_fn_epp = sse_op_table1[b][b1];
if (!sse_fn_epp) {
goto illegal_op;
}
if ((b <= 0x5f && b >= 0x10) || b == 0xc6 || b == 0xc2) {
is_xmm = 1;
} else {
if (b1 == 0) {
/* MMX case */
is_xmm = 0;
} else {
is_xmm = 1;
}
}
/* simple MMX/SSE operation */
if (s->flags & HF_TS_MASK) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
return;
}
if (s->flags & HF_EM_MASK) {
illegal_op:
gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base);
return;
}
if (is_xmm && !(s->flags & HF_OSFXSR_MASK))
if ((b != 0x38 && b != 0x3a) || (s->prefix & PREFIX_DATA))
goto illegal_op;
if (b == 0x0e) {
if (!(s->cpuid_ext2_features & CPUID_EXT2_3DNOW))
goto illegal_op;
/* femms */
gen_helper_emms(cpu_env);
return;
}
if (b == 0x77) {
/* emms */
gen_helper_emms(cpu_env);
return;
}
/* prepare MMX state (XXX: optimize by storing fptt and fptags in
the static cpu state) */
if (!is_xmm) {
gen_helper_enter_mmx(cpu_env);
}
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7);
if (is_xmm)
reg |= rex_r;
mod = (modrm >> 6) & 3;
if (sse_fn_epp == SSE_SPECIAL) {
b |= (b1 << 8);
switch(b) {
case 0x0e7: /* movntq */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State, fpregs[reg].mmx));
break;
case 0x1e7: /* movntdq */
case 0x02b: /* movntps */
case 0x12b: /* movntps */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
gen_sto_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
break;
case 0x3f0: /* lddqu */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
gen_ldo_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
break;
case 0x22b: /* movntss */
case 0x32b: /* movntsd */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
if (b1 & 1) {
gen_stq_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
} else {
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(0)));
gen_op_st_v(s, MO_32, cpu_T[0], cpu_A0);
}
break;
case 0x6e: /* movd mm, ea */
#ifdef TARGET_X86_64
if (s->dflag == MO_64) {
gen_ldst_modrm(env, s, modrm, MO_64, OR_TMP0, 0);
tcg_gen_st_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,fpregs[reg].mmx));
} else
#endif
{
gen_ldst_modrm(env, s, modrm, MO_32, OR_TMP0, 0);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,fpregs[reg].mmx));
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_movl_mm_T0_mmx(cpu_ptr0, cpu_tmp2_i32);
}
break;
case 0x16e: /* movd xmm, ea */
#ifdef TARGET_X86_64
if (s->dflag == MO_64) {
gen_ldst_modrm(env, s, modrm, MO_64, OR_TMP0, 0);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[reg]));
gen_helper_movq_mm_T0_xmm(cpu_ptr0, cpu_T[0]);
} else
#endif
{
gen_ldst_modrm(env, s, modrm, MO_32, OR_TMP0, 0);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[reg]));
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_movl_mm_T0_xmm(cpu_ptr0, cpu_tmp2_i32);
}
break;
case 0x6f: /* movq mm, ea */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State, fpregs[reg].mmx));
} else {
rm = (modrm & 7);
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env,
offsetof(CPUX86State,fpregs[rm].mmx));
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env,
offsetof(CPUX86State,fpregs[reg].mmx));
}
break;
case 0x010: /* movups */
case 0x110: /* movupd */
case 0x028: /* movaps */
case 0x128: /* movapd */
case 0x16f: /* movdqa xmm, ea */
case 0x26f: /* movdqu xmm, ea */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldo_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movo(offsetof(CPUX86State,xmm_regs[reg]),
offsetof(CPUX86State,xmm_regs[rm]));
}
break;
case 0x210: /* movss xmm, ea */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, MO_32, cpu_T[0], cpu_A0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)));
tcg_gen_movi_tl(cpu_T[0], 0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(1)));
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)));
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_L(0)));
}
break;
case 0x310: /* movsd xmm, ea */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
tcg_gen_movi_tl(cpu_T[0], 0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)));
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)));
}
break;
case 0x012: /* movlps */
case 0x112: /* movlpd */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
/* movhlps */
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(1)));
}
break;
case 0x212: /* movsldup */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldo_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_L(0)));
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)),
offsetof(CPUX86State,xmm_regs[rm].XMM_L(2)));
}
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(1)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)));
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)));
break;
case 0x312: /* movddup */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)));
}
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(1)),
offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)));
break;
case 0x016: /* movhps */
case 0x116: /* movhpd */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(1)));
} else {
/* movlhps */
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(1)),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)));
}
break;
case 0x216: /* movshdup */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldo_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(1)),
offsetof(CPUX86State,xmm_regs[rm].XMM_L(1)));
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)),
offsetof(CPUX86State,xmm_regs[rm].XMM_L(3)));
}
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(1)));
gen_op_movl(offsetof(CPUX86State,xmm_regs[reg].XMM_L(2)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(3)));
break;
case 0x178:
case 0x378:
{
int bit_index, field_length;
if (b1 == 1 && reg != 0)
goto illegal_op;
field_length = cpu_ldub_code(env, s->pc++) & 0x3F;
bit_index = cpu_ldub_code(env, s->pc++) & 0x3F;
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[reg]));
if (b1 == 1)
gen_helper_extrq_i(cpu_env, cpu_ptr0,
tcg_const_i32(bit_index),
tcg_const_i32(field_length));
else
gen_helper_insertq_i(cpu_env, cpu_ptr0,
tcg_const_i32(bit_index),
tcg_const_i32(field_length));
}
break;
case 0x7e: /* movd ea, mm */
#ifdef TARGET_X86_64
if (s->dflag == MO_64) {
tcg_gen_ld_i64(cpu_T[0], cpu_env,
offsetof(CPUX86State,fpregs[reg].mmx));
gen_ldst_modrm(env, s, modrm, MO_64, OR_TMP0, 1);
} else
#endif
{
tcg_gen_ld32u_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,fpregs[reg].mmx.MMX_L(0)));
gen_ldst_modrm(env, s, modrm, MO_32, OR_TMP0, 1);
}
break;
case 0x17e: /* movd ea, xmm */
#ifdef TARGET_X86_64
if (s->dflag == MO_64) {
tcg_gen_ld_i64(cpu_T[0], cpu_env,
offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)));
gen_ldst_modrm(env, s, modrm, MO_64, OR_TMP0, 1);
} else
#endif
{
tcg_gen_ld32u_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)));
gen_ldst_modrm(env, s, modrm, MO_32, OR_TMP0, 1);
}
break;
case 0x27e: /* movq xmm, ea */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)));
}
gen_op_movq_env_0(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(1)));
break;
case 0x7f: /* movq ea, mm */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State, fpregs[reg].mmx));
} else {
rm = (modrm & 7);
gen_op_movq(offsetof(CPUX86State,fpregs[rm].mmx),
offsetof(CPUX86State,fpregs[reg].mmx));
}
break;
case 0x011: /* movups */
case 0x111: /* movupd */
case 0x029: /* movaps */
case 0x129: /* movapd */
case 0x17f: /* movdqa ea, xmm */
case 0x27f: /* movdqu ea, xmm */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_sto_env_A0(s, offsetof(CPUX86State, xmm_regs[reg]));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movo(offsetof(CPUX86State,xmm_regs[rm]),
offsetof(CPUX86State,xmm_regs[reg]));
}
break;
case 0x211: /* movss ea, xmm */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)));
gen_op_st_v(s, MO_32, cpu_T[0], cpu_A0);
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movl(offsetof(CPUX86State,xmm_regs[rm].XMM_L(0)),
offsetof(CPUX86State,xmm_regs[reg].XMM_L(0)));
}
break;
case 0x311: /* movsd ea, xmm */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)));
}
break;
case 0x013: /* movlps */
case 0x113: /* movlpd */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
goto illegal_op;
}
break;
case 0x017: /* movhps */
case 0x117: /* movhpd */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(1)));
} else {
goto illegal_op;
}
break;
case 0x71: /* shift mm, im */
case 0x72:
case 0x73:
case 0x171: /* shift xmm, im */
case 0x172:
case 0x173:
if (b1 >= 2) {
goto illegal_op;
}
val = cpu_ldub_code(env, s->pc++);
if (is_xmm) {
tcg_gen_movi_tl(cpu_T[0], val);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_t0.XMM_L(0)));
tcg_gen_movi_tl(cpu_T[0], 0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_t0.XMM_L(1)));
op1_offset = offsetof(CPUX86State,xmm_t0);
} else {
tcg_gen_movi_tl(cpu_T[0], val);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,mmx_t0.MMX_L(0)));
tcg_gen_movi_tl(cpu_T[0], 0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,mmx_t0.MMX_L(1)));
op1_offset = offsetof(CPUX86State,mmx_t0);
}
sse_fn_epp = sse_op_table2[((b - 1) & 3) * 8 +
(((modrm >> 3)) & 7)][b1];
if (!sse_fn_epp) {
goto illegal_op;
}
if (is_xmm) {
rm = (modrm & 7) | REX_B(s);
op2_offset = offsetof(CPUX86State,xmm_regs[rm]);
} else {
rm = (modrm & 7);
op2_offset = offsetof(CPUX86State,fpregs[rm].mmx);
}
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op2_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op1_offset);
sse_fn_epp(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0x050: /* movmskps */
rm = (modrm & 7) | REX_B(s);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[rm]));
gen_helper_movmskps(cpu_tmp2_i32, cpu_env, cpu_ptr0);
tcg_gen_extu_i32_tl(cpu_regs[reg], cpu_tmp2_i32);
break;
case 0x150: /* movmskpd */
rm = (modrm & 7) | REX_B(s);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env,
offsetof(CPUX86State,xmm_regs[rm]));
gen_helper_movmskpd(cpu_tmp2_i32, cpu_env, cpu_ptr0);
tcg_gen_extu_i32_tl(cpu_regs[reg], cpu_tmp2_i32);
break;
case 0x02a: /* cvtpi2ps */
case 0x12a: /* cvtpi2pd */
gen_helper_enter_mmx(cpu_env);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
op2_offset = offsetof(CPUX86State,mmx_t0);
gen_ldq_env_A0(s, op2_offset);
} else {
rm = (modrm & 7);
op2_offset = offsetof(CPUX86State,fpregs[rm].mmx);
}
op1_offset = offsetof(CPUX86State,xmm_regs[reg]);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
switch(b >> 8) {
case 0x0:
gen_helper_cvtpi2ps(cpu_env, cpu_ptr0, cpu_ptr1);
break;
default:
case 0x1:
gen_helper_cvtpi2pd(cpu_env, cpu_ptr0, cpu_ptr1);
break;
}
break;
case 0x22a: /* cvtsi2ss */
case 0x32a: /* cvtsi2sd */
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
op1_offset = offsetof(CPUX86State,xmm_regs[reg]);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
if (ot == MO_32) {
SSEFunc_0_epi sse_fn_epi = sse_op_table3ai[(b >> 8) & 1];
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
sse_fn_epi(cpu_env, cpu_ptr0, cpu_tmp2_i32);
} else {
#ifdef TARGET_X86_64
SSEFunc_0_epl sse_fn_epl = sse_op_table3aq[(b >> 8) & 1];
sse_fn_epl(cpu_env, cpu_ptr0, cpu_T[0]);
#else
goto illegal_op;
#endif
}
break;
case 0x02c: /* cvttps2pi */
case 0x12c: /* cvttpd2pi */
case 0x02d: /* cvtps2pi */
case 0x12d: /* cvtpd2pi */
gen_helper_enter_mmx(cpu_env);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
op2_offset = offsetof(CPUX86State,xmm_t0);
gen_ldo_env_A0(s, op2_offset);
} else {
rm = (modrm & 7) | REX_B(s);
op2_offset = offsetof(CPUX86State,xmm_regs[rm]);
}
op1_offset = offsetof(CPUX86State,fpregs[reg & 7].mmx);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
switch(b) {
case 0x02c:
gen_helper_cvttps2pi(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0x12c:
gen_helper_cvttpd2pi(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0x02d:
gen_helper_cvtps2pi(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0x12d:
gen_helper_cvtpd2pi(cpu_env, cpu_ptr0, cpu_ptr1);
break;
}
break;
case 0x22c: /* cvttss2si */
case 0x32c: /* cvttsd2si */
case 0x22d: /* cvtss2si */
case 0x32d: /* cvtsd2si */
ot = mo_64_32(s->dflag);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
if ((b >> 8) & 1) {
gen_ldq_env_A0(s, offsetof(CPUX86State, xmm_t0.XMM_Q(0)));
} else {
gen_op_ld_v(s, MO_32, cpu_T[0], cpu_A0);
tcg_gen_st32_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,xmm_t0.XMM_L(0)));
}
op2_offset = offsetof(CPUX86State,xmm_t0);
} else {
rm = (modrm & 7) | REX_B(s);
op2_offset = offsetof(CPUX86State,xmm_regs[rm]);
}
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op2_offset);
if (ot == MO_32) {
SSEFunc_i_ep sse_fn_i_ep =
sse_op_table3bi[((b >> 7) & 2) | (b & 1)];
sse_fn_i_ep(cpu_tmp2_i32, cpu_env, cpu_ptr0);
tcg_gen_extu_i32_tl(cpu_T[0], cpu_tmp2_i32);
} else {
#ifdef TARGET_X86_64
SSEFunc_l_ep sse_fn_l_ep =
sse_op_table3bq[((b >> 7) & 2) | (b & 1)];
sse_fn_l_ep(cpu_T[0], cpu_env, cpu_ptr0);
#else
goto illegal_op;
#endif
}
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
case 0xc4: /* pinsrw */
case 0x1c4:
s->rip_offset = 1;
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
val = cpu_ldub_code(env, s->pc++);
if (b1) {
val &= 7;
tcg_gen_st16_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,xmm_regs[reg].XMM_W(val)));
} else {
val &= 3;
tcg_gen_st16_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,fpregs[reg].mmx.MMX_W(val)));
}
break;
case 0xc5: /* pextrw */
case 0x1c5:
if (mod != 3)
goto illegal_op;
ot = mo_64_32(s->dflag);
val = cpu_ldub_code(env, s->pc++);
if (b1) {
val &= 7;
rm = (modrm & 7) | REX_B(s);
tcg_gen_ld16u_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,xmm_regs[rm].XMM_W(val)));
} else {
val &= 3;
rm = (modrm & 7);
tcg_gen_ld16u_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,fpregs[rm].mmx.MMX_W(val)));
}
reg = ((modrm >> 3) & 7) | rex_r;
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
case 0x1d6: /* movq ea, xmm */
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_stq_env_A0(s, offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(0)));
} else {
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)),
offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)));
gen_op_movq_env_0(offsetof(CPUX86State,xmm_regs[rm].XMM_Q(1)));
}
break;
case 0x2d6: /* movq2dq */
gen_helper_enter_mmx(cpu_env);
rm = (modrm & 7);
gen_op_movq(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(0)),
offsetof(CPUX86State,fpregs[rm].mmx));
gen_op_movq_env_0(offsetof(CPUX86State,xmm_regs[reg].XMM_Q(1)));
break;
case 0x3d6: /* movdq2q */
gen_helper_enter_mmx(cpu_env);
rm = (modrm & 7) | REX_B(s);
gen_op_movq(offsetof(CPUX86State,fpregs[reg & 7].mmx),
offsetof(CPUX86State,xmm_regs[rm].XMM_Q(0)));
break;
case 0xd7: /* pmovmskb */
case 0x1d7:
if (mod != 3)
goto illegal_op;
if (b1) {
rm = (modrm & 7) | REX_B(s);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, offsetof(CPUX86State,xmm_regs[rm]));
gen_helper_pmovmskb_xmm(cpu_tmp2_i32, cpu_env, cpu_ptr0);
} else {
rm = (modrm & 7);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, offsetof(CPUX86State,fpregs[rm].mmx));
gen_helper_pmovmskb_mmx(cpu_tmp2_i32, cpu_env, cpu_ptr0);
}
reg = ((modrm >> 3) & 7) | rex_r;
tcg_gen_extu_i32_tl(cpu_regs[reg], cpu_tmp2_i32);
break;
case 0x138:
case 0x038:
b = modrm;
if ((b & 0xf0) == 0xf0) {
goto do_0f_38_fx;
}
modrm = cpu_ldub_code(env, s->pc++);
rm = modrm & 7;
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
if (b1 >= 2) {
goto illegal_op;
}
sse_fn_epp = sse_op_table6[b].op[b1];
if (!sse_fn_epp) {
goto illegal_op;
}
if (!(s->cpuid_ext_features & sse_op_table6[b].ext_mask))
goto illegal_op;
if (b1) {
op1_offset = offsetof(CPUX86State,xmm_regs[reg]);
if (mod == 3) {
op2_offset = offsetof(CPUX86State,xmm_regs[rm | REX_B(s)]);
} else {
op2_offset = offsetof(CPUX86State,xmm_t0);
gen_lea_modrm(env, s, modrm);
switch (b) {
case 0x20: case 0x30: /* pmovsxbw, pmovzxbw */
case 0x23: case 0x33: /* pmovsxwd, pmovzxwd */
case 0x25: case 0x35: /* pmovsxdq, pmovzxdq */
gen_ldq_env_A0(s, op2_offset +
offsetof(XMMReg, XMM_Q(0)));
break;
case 0x21: case 0x31: /* pmovsxbd, pmovzxbd */
case 0x24: case 0x34: /* pmovsxwq, pmovzxwq */
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env, op2_offset +
offsetof(XMMReg, XMM_L(0)));
break;
case 0x22: case 0x32: /* pmovsxbq, pmovzxbq */
tcg_gen_qemu_ld_tl(cpu_tmp0, cpu_A0,
s->mem_index, MO_LEUW);
tcg_gen_st16_tl(cpu_tmp0, cpu_env, op2_offset +
offsetof(XMMReg, XMM_W(0)));
break;
case 0x2a: /* movntqda */
gen_ldo_env_A0(s, op1_offset);
return;
default:
gen_ldo_env_A0(s, op2_offset);
}
}
} else {
op1_offset = offsetof(CPUX86State,fpregs[reg].mmx);
if (mod == 3) {
op2_offset = offsetof(CPUX86State,fpregs[rm].mmx);
} else {
op2_offset = offsetof(CPUX86State,mmx_t0);
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, op2_offset);
}
}
if (sse_fn_epp == SSE_SPECIAL) {
goto illegal_op;
}
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
sse_fn_epp(cpu_env, cpu_ptr0, cpu_ptr1);
if (b == 0x17) {
set_cc_op(s, CC_OP_EFLAGS);
}
break;
case 0x238:
case 0x338:
do_0f_38_fx:
/* Various integer extensions at 0f 38 f[0-f]. */
b = modrm | (b1 << 8);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
switch (b) {
case 0x3f0: /* crc32 Gd,Eb */
case 0x3f1: /* crc32 Gd,Ey */
do_crc32:
if (!(s->cpuid_ext_features & CPUID_EXT_SSE42)) {
goto illegal_op;
}
if ((b & 0xff) == 0xf0) {
ot = MO_8;
} else if (s->dflag != MO_64) {
ot = (s->prefix & PREFIX_DATA ? MO_16 : MO_32);
} else {
ot = MO_64;
}
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[reg]);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
gen_helper_crc32(cpu_T[0], cpu_tmp2_i32,
cpu_T[0], tcg_const_i32(8 << ot));
ot = mo_64_32(s->dflag);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
case 0x1f0: /* crc32 or movbe */
case 0x1f1:
/* For these insns, the f3 prefix is supposed to have priority
over the 66 prefix, but that's not what we implement above
setting b1. */
if (s->prefix & PREFIX_REPNZ) {
goto do_crc32;
}
/* FALLTHRU */
case 0x0f0: /* movbe Gy,My */
case 0x0f1: /* movbe My,Gy */
if (!(s->cpuid_ext_features & CPUID_EXT_MOVBE)) {
goto illegal_op;
}
if (s->dflag != MO_64) {
ot = (s->prefix & PREFIX_DATA ? MO_16 : MO_32);
} else {
ot = MO_64;
}
gen_lea_modrm(env, s, modrm);
if ((b & 1) == 0) {
tcg_gen_qemu_ld_tl(cpu_T[0], cpu_A0,
s->mem_index, ot | MO_BE);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
} else {
tcg_gen_qemu_st_tl(cpu_regs[reg], cpu_A0,
s->mem_index, ot | MO_BE);
}
break;
case 0x0f2: /* andn Gy, By, Ey */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI1)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
tcg_gen_andc_tl(cpu_T[0], cpu_regs[s->vex_v], cpu_T[0]);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
gen_op_update1_cc();
set_cc_op(s, CC_OP_LOGICB + ot);
break;
case 0x0f7: /* bextr Gy, Ey, By */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI1)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
{
TCGv bound, zero;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
/* Extract START, and shift the operand.
Shifts larger than operand size get zeros. */
tcg_gen_ext8u_tl(cpu_A0, cpu_regs[s->vex_v]);
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_A0);
bound = tcg_const_tl(ot == MO_64 ? 63 : 31);
zero = tcg_const_tl(0);
tcg_gen_movcond_tl(TCG_COND_LEU, cpu_T[0], cpu_A0, bound,
cpu_T[0], zero);
tcg_temp_free(zero);
/* Extract the LEN into a mask. Lengths larger than
operand size get all ones. */
tcg_gen_shri_tl(cpu_A0, cpu_regs[s->vex_v], 8);
tcg_gen_ext8u_tl(cpu_A0, cpu_A0);
tcg_gen_movcond_tl(TCG_COND_LEU, cpu_A0, cpu_A0, bound,
cpu_A0, bound);
tcg_temp_free(bound);
tcg_gen_movi_tl(cpu_T[1], 1);
tcg_gen_shl_tl(cpu_T[1], cpu_T[1], cpu_A0);
tcg_gen_subi_tl(cpu_T[1], cpu_T[1], 1);
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
gen_op_update1_cc();
set_cc_op(s, CC_OP_LOGICB + ot);
}
break;
case 0x0f5: /* bzhi Gy, Ey, By */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
tcg_gen_ext8u_tl(cpu_T[1], cpu_regs[s->vex_v]);
{
TCGv bound = tcg_const_tl(ot == MO_64 ? 63 : 31);
/* Note that since we're using BMILG (in order to get O
cleared) we need to store the inverse into C. */
tcg_gen_setcond_tl(TCG_COND_LT, cpu_cc_src,
cpu_T[1], bound);
tcg_gen_movcond_tl(TCG_COND_GT, cpu_T[1], cpu_T[1],
bound, bound, cpu_T[1]);
tcg_temp_free(bound);
}
tcg_gen_movi_tl(cpu_A0, -1);
tcg_gen_shl_tl(cpu_A0, cpu_A0, cpu_T[1]);
tcg_gen_andc_tl(cpu_T[0], cpu_T[0], cpu_A0);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
gen_op_update1_cc();
set_cc_op(s, CC_OP_BMILGB + ot);
break;
case 0x3f6: /* mulx By, Gy, rdx, Ey */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
switch (ot) {
default:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_regs[R_EDX]);
tcg_gen_mulu2_i32(cpu_tmp2_i32, cpu_tmp3_i32,
cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_regs[s->vex_v], cpu_tmp2_i32);
tcg_gen_extu_i32_tl(cpu_regs[reg], cpu_tmp3_i32);
break;
#ifdef TARGET_X86_64
case MO_64:
tcg_gen_mulu2_i64(cpu_regs[s->vex_v], cpu_regs[reg],
cpu_T[0], cpu_regs[R_EDX]);
break;
#endif
}
break;
case 0x3f5: /* pdep Gy, By, Ey */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
/* Note that by zero-extending the mask operand, we
automatically handle zero-extending the result. */
if (ot == MO_64) {
tcg_gen_mov_tl(cpu_T[1], cpu_regs[s->vex_v]);
} else {
tcg_gen_ext32u_tl(cpu_T[1], cpu_regs[s->vex_v]);
}
gen_helper_pdep(cpu_regs[reg], cpu_T[0], cpu_T[1]);
break;
case 0x2f5: /* pext Gy, By, Ey */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
/* Note that by zero-extending the mask operand, we
automatically handle zero-extending the result. */
if (ot == MO_64) {
tcg_gen_mov_tl(cpu_T[1], cpu_regs[s->vex_v]);
} else {
tcg_gen_ext32u_tl(cpu_T[1], cpu_regs[s->vex_v]);
}
gen_helper_pext(cpu_regs[reg], cpu_T[0], cpu_T[1]);
break;
case 0x1f6: /* adcx Gy, Ey */
case 0x2f6: /* adox Gy, Ey */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_ADX)) {
goto illegal_op;
} else {
TCGv carry_in, carry_out, zero;
int end_op;
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
/* Re-use the carry-out from a previous round. */
TCGV_UNUSED(carry_in);
carry_out = (b == 0x1f6 ? cpu_cc_dst : cpu_cc_src2);
switch (s->cc_op) {
case CC_OP_ADCX:
if (b == 0x1f6) {
carry_in = cpu_cc_dst;
end_op = CC_OP_ADCX;
} else {
end_op = CC_OP_ADCOX;
}
break;
case CC_OP_ADOX:
if (b == 0x1f6) {
end_op = CC_OP_ADCOX;
} else {
carry_in = cpu_cc_src2;
end_op = CC_OP_ADOX;
}
break;
case CC_OP_ADCOX:
end_op = CC_OP_ADCOX;
carry_in = carry_out;
break;
default:
end_op = (b == 0x1f6 ? CC_OP_ADCX : CC_OP_ADOX);
break;
}
/* If we can't reuse carry-out, get it out of EFLAGS. */
if (TCGV_IS_UNUSED(carry_in)) {
if (s->cc_op != CC_OP_ADCX && s->cc_op != CC_OP_ADOX) {
gen_compute_eflags(s);
}
carry_in = cpu_tmp0;
tcg_gen_shri_tl(carry_in, cpu_cc_src,
ctz32(b == 0x1f6 ? CC_C : CC_O));
tcg_gen_andi_tl(carry_in, carry_in, 1);
}
switch (ot) {
#ifdef TARGET_X86_64
case MO_32:
/* If we know TL is 64-bit, and we want a 32-bit
result, just do everything in 64-bit arithmetic. */
tcg_gen_ext32u_i64(cpu_regs[reg], cpu_regs[reg]);
tcg_gen_ext32u_i64(cpu_T[0], cpu_T[0]);
tcg_gen_add_i64(cpu_T[0], cpu_T[0], cpu_regs[reg]);
tcg_gen_add_i64(cpu_T[0], cpu_T[0], carry_in);
tcg_gen_ext32u_i64(cpu_regs[reg], cpu_T[0]);
tcg_gen_shri_i64(carry_out, cpu_T[0], 32);
break;
#endif
default:
/* Otherwise compute the carry-out in two steps. */
zero = tcg_const_tl(0);
tcg_gen_add2_tl(cpu_T[0], carry_out,
cpu_T[0], zero,
carry_in, zero);
tcg_gen_add2_tl(cpu_regs[reg], carry_out,
cpu_regs[reg], carry_out,
cpu_T[0], zero);
tcg_temp_free(zero);
break;
}
set_cc_op(s, end_op);
}
break;
case 0x1f7: /* shlx Gy, Ey, By */
case 0x2f7: /* sarx Gy, Ey, By */
case 0x3f7: /* shrx Gy, Ey, By */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
if (ot == MO_64) {
tcg_gen_andi_tl(cpu_T[1], cpu_regs[s->vex_v], 63);
} else {
tcg_gen_andi_tl(cpu_T[1], cpu_regs[s->vex_v], 31);
}
if (b == 0x1f7) {
tcg_gen_shl_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
} else if (b == 0x2f7) {
if (ot != MO_64) {
tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]);
}
tcg_gen_sar_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
} else {
if (ot != MO_64) {
tcg_gen_ext32u_tl(cpu_T[0], cpu_T[0]);
}
tcg_gen_shr_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
}
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
case 0x0f3:
case 0x1f3:
case 0x2f3:
case 0x3f3: /* Group 17 */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI1)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
switch (reg & 7) {
case 1: /* blsr By,Ey */
tcg_gen_neg_tl(cpu_T[1], cpu_T[0]);
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(ot, s->vex_v, cpu_T[0]);
gen_op_update2_cc();
set_cc_op(s, CC_OP_BMILGB + ot);
break;
case 2: /* blsmsk By,Ey */
tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]);
tcg_gen_subi_tl(cpu_T[0], cpu_T[0], 1);
tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_cc_src);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
set_cc_op(s, CC_OP_BMILGB + ot);
break;
case 3: /* blsi By, Ey */
tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]);
tcg_gen_subi_tl(cpu_T[0], cpu_T[0], 1);
tcg_gen_and_tl(cpu_T[0], cpu_T[0], cpu_cc_src);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
set_cc_op(s, CC_OP_BMILGB + ot);
break;
default:
goto illegal_op;
}
break;
default:
goto illegal_op;
}
break;
case 0x03a:
case 0x13a:
b = modrm;
modrm = cpu_ldub_code(env, s->pc++);
rm = modrm & 7;
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
if (b1 >= 2) {
goto illegal_op;
}
sse_fn_eppi = sse_op_table7[b].op[b1];
if (!sse_fn_eppi) {
goto illegal_op;
}
if (!(s->cpuid_ext_features & sse_op_table7[b].ext_mask))
goto illegal_op;
if (sse_fn_eppi == SSE_SPECIAL) {
ot = mo_64_32(s->dflag);
rm = (modrm & 7) | REX_B(s);
if (mod != 3)
gen_lea_modrm(env, s, modrm);
reg = ((modrm >> 3) & 7) | rex_r;
val = cpu_ldub_code(env, s->pc++);
switch (b) {
case 0x14: /* pextrb */
tcg_gen_ld8u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_B(val & 15)));
if (mod == 3) {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
tcg_gen_qemu_st_tl(cpu_T[0], cpu_A0,
s->mem_index, MO_UB);
}
break;
case 0x15: /* pextrw */
tcg_gen_ld16u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_W(val & 7)));
if (mod == 3) {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
tcg_gen_qemu_st_tl(cpu_T[0], cpu_A0,
s->mem_index, MO_LEUW);
}
break;
case 0x16:
if (ot == MO_32) { /* pextrd */
tcg_gen_ld_i32(cpu_tmp2_i32, cpu_env,
offsetof(CPUX86State,
xmm_regs[reg].XMM_L(val & 3)));
if (mod == 3) {
tcg_gen_extu_i32_tl(cpu_regs[rm], cpu_tmp2_i32);
} else {
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
}
} else { /* pextrq */
#ifdef TARGET_X86_64
tcg_gen_ld_i64(cpu_tmp1_i64, cpu_env,
offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(val & 1)));
if (mod == 3) {
tcg_gen_mov_i64(cpu_regs[rm], cpu_tmp1_i64);
} else {
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
}
#else
goto illegal_op;
#endif
}
break;
case 0x17: /* extractps */
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(val & 3)));
if (mod == 3) {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
tcg_gen_qemu_st_tl(cpu_T[0], cpu_A0,
s->mem_index, MO_LEUL);
}
break;
case 0x20: /* pinsrb */
if (mod == 3) {
gen_op_mov_v_reg(MO_32, cpu_T[0], rm);
} else {
tcg_gen_qemu_ld_tl(cpu_T[0], cpu_A0,
s->mem_index, MO_UB);
}
tcg_gen_st8_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_B(val & 15)));
break;
case 0x21: /* insertps */
if (mod == 3) {
tcg_gen_ld_i32(cpu_tmp2_i32, cpu_env,
offsetof(CPUX86State,xmm_regs[rm]
.XMM_L((val >> 6) & 3)));
} else {
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
}
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env,
offsetof(CPUX86State,xmm_regs[reg]
.XMM_L((val >> 4) & 3)));
if ((val >> 0) & 1)
tcg_gen_st_i32(tcg_const_i32(0 /*float32_zero*/),
cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(0)));
if ((val >> 1) & 1)
tcg_gen_st_i32(tcg_const_i32(0 /*float32_zero*/),
cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(1)));
if ((val >> 2) & 1)
tcg_gen_st_i32(tcg_const_i32(0 /*float32_zero*/),
cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(2)));
if ((val >> 3) & 1)
tcg_gen_st_i32(tcg_const_i32(0 /*float32_zero*/),
cpu_env, offsetof(CPUX86State,
xmm_regs[reg].XMM_L(3)));
break;
case 0x22:
if (ot == MO_32) { /* pinsrd */
if (mod == 3) {
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_regs[rm]);
} else {
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
}
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env,
offsetof(CPUX86State,
xmm_regs[reg].XMM_L(val & 3)));
} else { /* pinsrq */
#ifdef TARGET_X86_64
if (mod == 3) {
gen_op_mov_v_reg(ot, cpu_tmp1_i64, rm);
} else {
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
}
tcg_gen_st_i64(cpu_tmp1_i64, cpu_env,
offsetof(CPUX86State,
xmm_regs[reg].XMM_Q(val & 1)));
#else
goto illegal_op;
#endif
}
break;
}
return;
}
if (b1) {
op1_offset = offsetof(CPUX86State,xmm_regs[reg]);
if (mod == 3) {
op2_offset = offsetof(CPUX86State,xmm_regs[rm | REX_B(s)]);
} else {
op2_offset = offsetof(CPUX86State,xmm_t0);
gen_lea_modrm(env, s, modrm);
gen_ldo_env_A0(s, op2_offset);
}
} else {
op1_offset = offsetof(CPUX86State,fpregs[reg].mmx);
if (mod == 3) {
op2_offset = offsetof(CPUX86State,fpregs[rm].mmx);
} else {
op2_offset = offsetof(CPUX86State,mmx_t0);
gen_lea_modrm(env, s, modrm);
gen_ldq_env_A0(s, op2_offset);
}
}
val = cpu_ldub_code(env, s->pc++);
if ((b & 0xfc) == 0x60) { /* pcmpXstrX */
set_cc_op(s, CC_OP_EFLAGS);
if (s->dflag == MO_64) {
/* The helper must use entire 64-bit gp registers */
val |= 1 << 8;
}
}
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
sse_fn_eppi(cpu_env, cpu_ptr0, cpu_ptr1, tcg_const_i32(val));
break;
case 0x33a:
/* Various integer extensions at 0f 3a f[0-f]. */
b = modrm | (b1 << 8);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
switch (b) {
case 0x3f0: /* rorx Gy,Ey, Ib */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI2)
|| !(s->prefix & PREFIX_VEX)
|| s->vex_l != 0) {
goto illegal_op;
}
ot = mo_64_32(s->dflag);
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
b = cpu_ldub_code(env, s->pc++);
if (ot == MO_64) {
tcg_gen_rotri_tl(cpu_T[0], cpu_T[0], b & 63);
} else {
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_rotri_i32(cpu_tmp2_i32, cpu_tmp2_i32, b & 31);
tcg_gen_extu_i32_tl(cpu_T[0], cpu_tmp2_i32);
}
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
default:
goto illegal_op;
}
break;
default:
goto illegal_op;
}
} else {
/* generic MMX or SSE operation */
switch(b) {
case 0x70: /* pshufx insn */
case 0xc6: /* pshufx insn */
case 0xc2: /* compare insns */
s->rip_offset = 1;
break;
default:
break;
}
if (is_xmm) {
op1_offset = offsetof(CPUX86State,xmm_regs[reg]);
if (mod != 3) {
int sz = 4;
gen_lea_modrm(env, s, modrm);
op2_offset = offsetof(CPUX86State,xmm_t0);
switch (b) {
case 0x50 ... 0x5a:
case 0x5c ... 0x5f:
case 0xc2:
/* Most sse scalar operations. */
if (b1 == 2) {
sz = 2;
} else if (b1 == 3) {
sz = 3;
}
break;
case 0x2e: /* ucomis[sd] */
case 0x2f: /* comis[sd] */
if (b1 == 0) {
sz = 2;
} else {
sz = 3;
}
break;
}
switch (sz) {
case 2:
/* 32 bit access */
gen_op_ld_v(s, MO_32, cpu_T[0], cpu_A0);
tcg_gen_st32_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,xmm_t0.XMM_L(0)));
break;
case 3:
/* 64 bit access */
gen_ldq_env_A0(s, offsetof(CPUX86State, xmm_t0.XMM_D(0)));
break;
default:
/* 128 bit access */
gen_ldo_env_A0(s, op2_offset);
break;
}
} else {
rm = (modrm & 7) | REX_B(s);
op2_offset = offsetof(CPUX86State,xmm_regs[rm]);
}
} else {
op1_offset = offsetof(CPUX86State,fpregs[reg].mmx);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
op2_offset = offsetof(CPUX86State,mmx_t0);
gen_ldq_env_A0(s, op2_offset);
} else {
rm = (modrm & 7);
op2_offset = offsetof(CPUX86State,fpregs[rm].mmx);
}
}
switch(b) {
case 0x0f: /* 3DNow! data insns */
if (!(s->cpuid_ext2_features & CPUID_EXT2_3DNOW))
goto illegal_op;
val = cpu_ldub_code(env, s->pc++);
sse_fn_epp = sse_op_table5[val];
if (!sse_fn_epp) {
goto illegal_op;
}
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
sse_fn_epp(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0x70: /* pshufx insn */
case 0xc6: /* pshufx insn */
val = cpu_ldub_code(env, s->pc++);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
/* XXX: introduce a new table? */
sse_fn_ppi = (SSEFunc_0_ppi)sse_fn_epp;
sse_fn_ppi(cpu_ptr0, cpu_ptr1, tcg_const_i32(val));
break;
case 0xc2:
/* compare insns */
val = cpu_ldub_code(env, s->pc++);
if (val >= 8)
goto illegal_op;
sse_fn_epp = sse_op_table4[val][b1];
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
sse_fn_epp(cpu_env, cpu_ptr0, cpu_ptr1);
break;
case 0xf7:
/* maskmov : we must prepare A0 */
if (mod != 3)
goto illegal_op;
tcg_gen_mov_tl(cpu_A0, cpu_regs[R_EDI]);
gen_extu(s->aflag, cpu_A0);
gen_add_A0_ds_seg(s);
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
/* XXX: introduce a new table? */
sse_fn_eppt = (SSEFunc_0_eppt)sse_fn_epp;
sse_fn_eppt(cpu_env, cpu_ptr0, cpu_ptr1, cpu_A0);
break;
default:
tcg_gen_addi_ptr(cpu_ptr0, cpu_env, op1_offset);
tcg_gen_addi_ptr(cpu_ptr1, cpu_env, op2_offset);
sse_fn_epp(cpu_env, cpu_ptr0, cpu_ptr1);
break;
}
if (b == 0x2e || b == 0x2f) {
set_cc_op(s, CC_OP_EFLAGS);
}
}
}
/* convert one instruction. s->is_jmp is set if the translation must
be stopped. Return the next pc value */
static target_ulong disas_insn(CPUX86State *env, DisasContext *s,
target_ulong pc_start)
{
int b, prefixes;
int shift;
TCGMemOp ot, aflag, dflag;
int modrm, reg, rm, mod, op, opreg, val;
target_ulong next_eip, tval;
int rex_w, rex_r;
if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP | CPU_LOG_TB_OP_OPT))) {
tcg_gen_debug_insn_start(pc_start);
}
s->pc = pc_start;
prefixes = 0;
s->override = -1;
rex_w = -1;
rex_r = 0;
#ifdef TARGET_X86_64
s->rex_x = 0;
s->rex_b = 0;
x86_64_hregs = 0;
#endif
s->rip_offset = 0; /* for relative ip address */
s->vex_l = 0;
s->vex_v = 0;
next_byte:
b = cpu_ldub_code(env, s->pc);
s->pc++;
/* Collect prefixes. */
switch (b) {
case 0xf3:
prefixes |= PREFIX_REPZ;
goto next_byte;
case 0xf2:
prefixes |= PREFIX_REPNZ;
goto next_byte;
case 0xf0:
prefixes |= PREFIX_LOCK;
goto next_byte;
case 0x2e:
s->override = R_CS;
goto next_byte;
case 0x36:
s->override = R_SS;
goto next_byte;
case 0x3e:
s->override = R_DS;
goto next_byte;
case 0x26:
s->override = R_ES;
goto next_byte;
case 0x64:
s->override = R_FS;
goto next_byte;
case 0x65:
s->override = R_GS;
goto next_byte;
case 0x66:
prefixes |= PREFIX_DATA;
goto next_byte;
case 0x67:
prefixes |= PREFIX_ADR;
goto next_byte;
#ifdef TARGET_X86_64
case 0x40 ... 0x4f:
if (CODE64(s)) {
/* REX prefix */
rex_w = (b >> 3) & 1;
rex_r = (b & 0x4) << 1;
s->rex_x = (b & 0x2) << 2;
REX_B(s) = (b & 0x1) << 3;
x86_64_hregs = 1; /* select uniform byte register addressing */
goto next_byte;
}
break;
#endif
case 0xc5: /* 2-byte VEX */
case 0xc4: /* 3-byte VEX */
/* VEX prefixes cannot be used except in 32-bit mode.
Otherwise the instruction is LES or LDS. */
if (s->code32 && !s->vm86) {
static const int pp_prefix[4] = {
0, PREFIX_DATA, PREFIX_REPZ, PREFIX_REPNZ
};
int vex3, vex2 = cpu_ldub_code(env, s->pc);
if (!CODE64(s) && (vex2 & 0xc0) != 0xc0) {
/* 4.1.4.6: In 32-bit mode, bits [7:6] must be 11b,
otherwise the instruction is LES or LDS. */
break;
}
s->pc++;
/* 4.1.1-4.1.3: No preceding lock, 66, f2, f3, or rex prefixes. */
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ
| PREFIX_LOCK | PREFIX_DATA)) {
goto illegal_op;
}
#ifdef TARGET_X86_64
if (x86_64_hregs) {
goto illegal_op;
}
#endif
rex_r = (~vex2 >> 4) & 8;
if (b == 0xc5) {
vex3 = vex2;
b = cpu_ldub_code(env, s->pc++);
} else {
#ifdef TARGET_X86_64
s->rex_x = (~vex2 >> 3) & 8;
s->rex_b = (~vex2 >> 2) & 8;
#endif
vex3 = cpu_ldub_code(env, s->pc++);
rex_w = (vex3 >> 7) & 1;
switch (vex2 & 0x1f) {
case 0x01: /* Implied 0f leading opcode bytes. */
b = cpu_ldub_code(env, s->pc++) | 0x100;
break;
case 0x02: /* Implied 0f 38 leading opcode bytes. */
b = 0x138;
break;
case 0x03: /* Implied 0f 3a leading opcode bytes. */
b = 0x13a;
break;
default: /* Reserved for future use. */
goto illegal_op;
}
}
s->vex_v = (~vex3 >> 3) & 0xf;
s->vex_l = (vex3 >> 2) & 1;
prefixes |= pp_prefix[vex3 & 3] | PREFIX_VEX;
}
break;
}
/* Post-process prefixes. */
if (CODE64(s)) {
/* In 64-bit mode, the default data size is 32-bit. Select 64-bit
data with rex_w, and 16-bit data with 0x66; rex_w takes precedence
over 0x66 if both are present. */
dflag = (rex_w > 0 ? MO_64 : prefixes & PREFIX_DATA ? MO_16 : MO_32);
/* In 64-bit mode, 0x67 selects 32-bit addressing. */
aflag = (prefixes & PREFIX_ADR ? MO_32 : MO_64);
} else {
/* In 16/32-bit mode, 0x66 selects the opposite data size. */
if (s->code32 ^ ((prefixes & PREFIX_DATA) != 0)) {
dflag = MO_32;
} else {
dflag = MO_16;
}
/* In 16/32-bit mode, 0x67 selects the opposite addressing. */
if (s->code32 ^ ((prefixes & PREFIX_ADR) != 0)) {
aflag = MO_32;
} else {
aflag = MO_16;
}
}
s->prefix = prefixes;
s->aflag = aflag;
s->dflag = dflag;
/* lock generation */
if (prefixes & PREFIX_LOCK)
gen_helper_lock();
/* now check op code */
reswitch:
switch(b) {
case 0x0f:
/**************************/
/* extended op code */
b = cpu_ldub_code(env, s->pc++) | 0x100;
goto reswitch;
/**************************/
/* arith & logic */
case 0x00 ... 0x05:
case 0x08 ... 0x0d:
case 0x10 ... 0x15:
case 0x18 ... 0x1d:
case 0x20 ... 0x25:
case 0x28 ... 0x2d:
case 0x30 ... 0x35:
case 0x38 ... 0x3d:
{
int op, f, val;
op = (b >> 3) & 7;
f = (b >> 1) & 3;
ot = mo_b_d(b, dflag);
switch(f) {
case 0: /* OP Ev, Gv */
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
opreg = OR_TMP0;
} else if (op == OP_XORL && rm == reg) {
xor_zero:
/* xor reg, reg optimisation */
set_cc_op(s, CC_OP_CLR);
tcg_gen_movi_tl(cpu_T[0], 0);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
} else {
opreg = rm;
}
gen_op_mov_v_reg(ot, cpu_T[1], reg);
gen_op(s, op, ot, opreg);
break;
case 1: /* OP Gv, Ev */
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
reg = ((modrm >> 3) & 7) | rex_r;
rm = (modrm & 7) | REX_B(s);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
} else if (op == OP_XORL && rm == reg) {
goto xor_zero;
} else {
gen_op_mov_v_reg(ot, cpu_T[1], rm);
}
gen_op(s, op, ot, reg);
break;
case 2: /* OP A, Iv */
val = insn_get(env, s, ot);
tcg_gen_movi_tl(cpu_T[1], val);
gen_op(s, op, ot, OR_EAX);
break;
}
}
break;
case 0x82:
if (CODE64(s))
goto illegal_op;
case 0x80: /* GRP1 */
case 0x81:
case 0x83:
{
int val;
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
op = (modrm >> 3) & 7;
if (mod != 3) {
if (b == 0x83)
s->rip_offset = 1;
else
s->rip_offset = insn_const_size(ot);
gen_lea_modrm(env, s, modrm);
opreg = OR_TMP0;
} else {
opreg = rm;
}
switch(b) {
default:
case 0x80:
case 0x81:
case 0x82:
val = insn_get(env, s, ot);
break;
case 0x83:
val = (int8_t)insn_get(env, s, MO_8);
break;
}
tcg_gen_movi_tl(cpu_T[1], val);
gen_op(s, op, ot, opreg);
}
break;
/**************************/
/* inc, dec, and other misc arith */
case 0x40 ... 0x47: /* inc Gv */
ot = dflag;
gen_inc(s, ot, OR_EAX + (b & 7), 1);
break;
case 0x48 ... 0x4f: /* dec Gv */
ot = dflag;
gen_inc(s, ot, OR_EAX + (b & 7), -1);
break;
case 0xf6: /* GRP3 */
case 0xf7:
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
op = (modrm >> 3) & 7;
if (mod != 3) {
if (op == 0)
s->rip_offset = insn_const_size(ot);
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
}
switch(op) {
case 0: /* test */
val = insn_get(env, s, ot);
tcg_gen_movi_tl(cpu_T[1], val);
gen_op_testl_T0_T1_cc();
set_cc_op(s, CC_OP_LOGICB + ot);
break;
case 2: /* not */
tcg_gen_not_tl(cpu_T[0], cpu_T[0]);
if (mod != 3) {
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
}
break;
case 3: /* neg */
tcg_gen_neg_tl(cpu_T[0], cpu_T[0]);
if (mod != 3) {
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
}
gen_op_update_neg_cc();
set_cc_op(s, CC_OP_SUBB + ot);
break;
case 4: /* mul */
switch(ot) {
case MO_8:
gen_op_mov_v_reg(MO_8, cpu_T[1], R_EAX);
tcg_gen_ext8u_tl(cpu_T[0], cpu_T[0]);
tcg_gen_ext8u_tl(cpu_T[1], cpu_T[1]);
/* XXX: use 32 bit mul which could be faster */
tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_andi_tl(cpu_cc_src, cpu_T[0], 0xff00);
set_cc_op(s, CC_OP_MULB);
break;
case MO_16:
gen_op_mov_v_reg(MO_16, cpu_T[1], R_EAX);
tcg_gen_ext16u_tl(cpu_T[0], cpu_T[0]);
tcg_gen_ext16u_tl(cpu_T[1], cpu_T[1]);
/* XXX: use 32 bit mul which could be faster */
tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 16);
gen_op_mov_reg_v(MO_16, R_EDX, cpu_T[0]);
tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]);
set_cc_op(s, CC_OP_MULW);
break;
default:
case MO_32:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_regs[R_EAX]);
tcg_gen_mulu2_i32(cpu_tmp2_i32, cpu_tmp3_i32,
cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_regs[R_EAX], cpu_tmp2_i32);
tcg_gen_extu_i32_tl(cpu_regs[R_EDX], cpu_tmp3_i32);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[R_EAX]);
tcg_gen_mov_tl(cpu_cc_src, cpu_regs[R_EDX]);
set_cc_op(s, CC_OP_MULL);
break;
#ifdef TARGET_X86_64
case MO_64:
tcg_gen_mulu2_i64(cpu_regs[R_EAX], cpu_regs[R_EDX],
cpu_T[0], cpu_regs[R_EAX]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[R_EAX]);
tcg_gen_mov_tl(cpu_cc_src, cpu_regs[R_EDX]);
set_cc_op(s, CC_OP_MULQ);
break;
#endif
}
break;
case 5: /* imul */
switch(ot) {
case MO_8:
gen_op_mov_v_reg(MO_8, cpu_T[1], R_EAX);
tcg_gen_ext8s_tl(cpu_T[0], cpu_T[0]);
tcg_gen_ext8s_tl(cpu_T[1], cpu_T[1]);
/* XXX: use 32 bit mul which could be faster */
tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_ext8s_tl(cpu_tmp0, cpu_T[0]);
tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0);
set_cc_op(s, CC_OP_MULB);
break;
case MO_16:
gen_op_mov_v_reg(MO_16, cpu_T[1], R_EAX);
tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]);
tcg_gen_ext16s_tl(cpu_T[1], cpu_T[1]);
/* XXX: use 32 bit mul which could be faster */
tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_ext16s_tl(cpu_tmp0, cpu_T[0]);
tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0);
tcg_gen_shri_tl(cpu_T[0], cpu_T[0], 16);
gen_op_mov_reg_v(MO_16, R_EDX, cpu_T[0]);
set_cc_op(s, CC_OP_MULW);
break;
default:
case MO_32:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_regs[R_EAX]);
tcg_gen_muls2_i32(cpu_tmp2_i32, cpu_tmp3_i32,
cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_regs[R_EAX], cpu_tmp2_i32);
tcg_gen_extu_i32_tl(cpu_regs[R_EDX], cpu_tmp3_i32);
tcg_gen_sari_i32(cpu_tmp2_i32, cpu_tmp2_i32, 31);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[R_EAX]);
tcg_gen_sub_i32(cpu_tmp2_i32, cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_cc_src, cpu_tmp2_i32);
set_cc_op(s, CC_OP_MULL);
break;
#ifdef TARGET_X86_64
case MO_64:
tcg_gen_muls2_i64(cpu_regs[R_EAX], cpu_regs[R_EDX],
cpu_T[0], cpu_regs[R_EAX]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[R_EAX]);
tcg_gen_sari_tl(cpu_cc_src, cpu_regs[R_EAX], 63);
tcg_gen_sub_tl(cpu_cc_src, cpu_cc_src, cpu_regs[R_EDX]);
set_cc_op(s, CC_OP_MULQ);
break;
#endif
}
break;
case 6: /* div */
switch(ot) {
case MO_8:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_divb_AL(cpu_env, cpu_T[0]);
break;
case MO_16:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_divw_AX(cpu_env, cpu_T[0]);
break;
default:
case MO_32:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_divl_EAX(cpu_env, cpu_T[0]);
break;
#ifdef TARGET_X86_64
case MO_64:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_divq_EAX(cpu_env, cpu_T[0]);
break;
#endif
}
break;
case 7: /* idiv */
switch(ot) {
case MO_8:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_idivb_AL(cpu_env, cpu_T[0]);
break;
case MO_16:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_idivw_AX(cpu_env, cpu_T[0]);
break;
default:
case MO_32:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_idivl_EAX(cpu_env, cpu_T[0]);
break;
#ifdef TARGET_X86_64
case MO_64:
gen_jmp_im(pc_start - s->cs_base);
gen_helper_idivq_EAX(cpu_env, cpu_T[0]);
break;
#endif
}
break;
default:
goto illegal_op;
}
break;
case 0xfe: /* GRP4 */
case 0xff: /* GRP5 */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
op = (modrm >> 3) & 7;
if (op >= 2 && b == 0xfe) {
goto illegal_op;
}
if (CODE64(s)) {
if (op == 2 || op == 4) {
/* operand size for jumps is 64 bit */
ot = MO_64;
} else if (op == 3 || op == 5) {
ot = dflag != MO_16 ? MO_32 + (rex_w == 1) : MO_16;
} else if (op == 6) {
/* default push size is 64 bit */
ot = mo_pushpop(s, dflag);
}
}
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
if (op >= 2 && op != 3 && op != 5)
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
}
switch(op) {
case 0: /* inc Ev */
if (mod != 3)
opreg = OR_TMP0;
else
opreg = rm;
gen_inc(s, ot, opreg, 1);
break;
case 1: /* dec Ev */
if (mod != 3)
opreg = OR_TMP0;
else
opreg = rm;
gen_inc(s, ot, opreg, -1);
break;
case 2: /* call Ev */
/* XXX: optimize if memory (no 'and' is necessary) */
if (dflag == MO_16) {
tcg_gen_ext16u_tl(cpu_T[0], cpu_T[0]);
}
next_eip = s->pc - s->cs_base;
tcg_gen_movi_tl(cpu_T[1], next_eip);
gen_push_v(s, cpu_T[1]);
gen_op_jmp_v(cpu_T[0]);
gen_eob(s);
break;
case 3: /* lcall Ev */
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_add_A0_im(s, 1 << ot);
gen_op_ld_v(s, MO_16, cpu_T[0], cpu_A0);
do_lcall:
if (s->pe && !s->vm86) {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_lcall_protected(cpu_env, cpu_tmp2_i32, cpu_T[1],
tcg_const_i32(dflag - 1),
tcg_const_i32(s->pc - pc_start));
} else {
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_lcall_real(cpu_env, cpu_tmp2_i32, cpu_T[1],
tcg_const_i32(dflag - 1),
tcg_const_i32(s->pc - s->cs_base));
}
gen_eob(s);
break;
case 4: /* jmp Ev */
if (dflag == MO_16) {
tcg_gen_ext16u_tl(cpu_T[0], cpu_T[0]);
}
gen_op_jmp_v(cpu_T[0]);
gen_eob(s);
break;
case 5: /* ljmp Ev */
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_add_A0_im(s, 1 << ot);
gen_op_ld_v(s, MO_16, cpu_T[0], cpu_A0);
do_ljmp:
if (s->pe && !s->vm86) {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_ljmp_protected(cpu_env, cpu_tmp2_i32, cpu_T[1],
tcg_const_i32(s->pc - pc_start));
} else {
gen_op_movl_seg_T0_vm(R_CS);
gen_op_jmp_v(cpu_T[1]);
}
gen_eob(s);
break;
case 6: /* push Ev */
gen_push_v(s, cpu_T[0]);
break;
default:
goto illegal_op;
}
break;
case 0x84: /* test Ev, Gv */
case 0x85:
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
gen_op_mov_v_reg(ot, cpu_T[1], reg);
gen_op_testl_T0_T1_cc();
set_cc_op(s, CC_OP_LOGICB + ot);
break;
case 0xa8: /* test eAX, Iv */
case 0xa9:
ot = mo_b_d(b, dflag);
val = insn_get(env, s, ot);
gen_op_mov_v_reg(ot, cpu_T[0], OR_EAX);
tcg_gen_movi_tl(cpu_T[1], val);
gen_op_testl_T0_T1_cc();
set_cc_op(s, CC_OP_LOGICB + ot);
break;
case 0x98: /* CWDE/CBW */
switch (dflag) {
#ifdef TARGET_X86_64
case MO_64:
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EAX);
tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_64, R_EAX, cpu_T[0]);
break;
#endif
case MO_32:
gen_op_mov_v_reg(MO_16, cpu_T[0], R_EAX);
tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_32, R_EAX, cpu_T[0]);
break;
case MO_16:
gen_op_mov_v_reg(MO_8, cpu_T[0], R_EAX);
tcg_gen_ext8s_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
break;
default:
tcg_abort();
}
break;
case 0x99: /* CDQ/CWD */
switch (dflag) {
#ifdef TARGET_X86_64
case MO_64:
gen_op_mov_v_reg(MO_64, cpu_T[0], R_EAX);
tcg_gen_sari_tl(cpu_T[0], cpu_T[0], 63);
gen_op_mov_reg_v(MO_64, R_EDX, cpu_T[0]);
break;
#endif
case MO_32:
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EAX);
tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]);
tcg_gen_sari_tl(cpu_T[0], cpu_T[0], 31);
gen_op_mov_reg_v(MO_32, R_EDX, cpu_T[0]);
break;
case MO_16:
gen_op_mov_v_reg(MO_16, cpu_T[0], R_EAX);
tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]);
tcg_gen_sari_tl(cpu_T[0], cpu_T[0], 15);
gen_op_mov_reg_v(MO_16, R_EDX, cpu_T[0]);
break;
default:
tcg_abort();
}
break;
case 0x1af: /* imul Gv, Ev */
case 0x69: /* imul Gv, Ev, I */
case 0x6b:
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
if (b == 0x69)
s->rip_offset = insn_const_size(ot);
else if (b == 0x6b)
s->rip_offset = 1;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
if (b == 0x69) {
val = insn_get(env, s, ot);
tcg_gen_movi_tl(cpu_T[1], val);
} else if (b == 0x6b) {
val = (int8_t)insn_get(env, s, MO_8);
tcg_gen_movi_tl(cpu_T[1], val);
} else {
gen_op_mov_v_reg(ot, cpu_T[1], reg);
}
switch (ot) {
#ifdef TARGET_X86_64
case MO_64:
tcg_gen_muls2_i64(cpu_regs[reg], cpu_T[1], cpu_T[0], cpu_T[1]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[reg]);
tcg_gen_sari_tl(cpu_cc_src, cpu_cc_dst, 63);
tcg_gen_sub_tl(cpu_cc_src, cpu_cc_src, cpu_T[1]);
break;
#endif
case MO_32:
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]);
tcg_gen_muls2_i32(cpu_tmp2_i32, cpu_tmp3_i32,
cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_regs[reg], cpu_tmp2_i32);
tcg_gen_sari_i32(cpu_tmp2_i32, cpu_tmp2_i32, 31);
tcg_gen_mov_tl(cpu_cc_dst, cpu_regs[reg]);
tcg_gen_sub_i32(cpu_tmp2_i32, cpu_tmp2_i32, cpu_tmp3_i32);
tcg_gen_extu_i32_tl(cpu_cc_src, cpu_tmp2_i32);
break;
default:
tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]);
tcg_gen_ext16s_tl(cpu_T[1], cpu_T[1]);
/* XXX: use 32 bit mul which could be faster */
tcg_gen_mul_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
tcg_gen_ext16s_tl(cpu_tmp0, cpu_T[0]);
tcg_gen_sub_tl(cpu_cc_src, cpu_T[0], cpu_tmp0);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
}
set_cc_op(s, CC_OP_MULB + ot);
break;
case 0x1c0:
case 0x1c1: /* xadd Ev, Gv */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
if (mod == 3) {
rm = (modrm & 7) | REX_B(s);
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_op_mov_v_reg(ot, cpu_T[1], rm);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_mov_reg_v(ot, reg, cpu_T[1]);
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
gen_lea_modrm(env, s, modrm);
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
tcg_gen_add_tl(cpu_T[0], cpu_T[0], cpu_T[1]);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(ot, reg, cpu_T[1]);
}
gen_op_update2_cc();
set_cc_op(s, CC_OP_ADDB + ot);
break;
case 0x1b0:
case 0x1b1: /* cmpxchg Ev, Gv */
{
int label1, label2;
TCGv t0, t1, t2, a0;
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
t0 = tcg_temp_local_new();
t1 = tcg_temp_local_new();
t2 = tcg_temp_local_new();
a0 = tcg_temp_local_new();
gen_op_mov_v_reg(ot, t1, reg);
if (mod == 3) {
rm = (modrm & 7) | REX_B(s);
gen_op_mov_v_reg(ot, t0, rm);
} else {
gen_lea_modrm(env, s, modrm);
tcg_gen_mov_tl(a0, cpu_A0);
gen_op_ld_v(s, ot, t0, a0);
rm = 0; /* avoid warning */
}
label1 = gen_new_label();
tcg_gen_mov_tl(t2, cpu_regs[R_EAX]);
gen_extu(ot, t0);
gen_extu(ot, t2);
tcg_gen_brcond_tl(TCG_COND_EQ, t2, t0, label1);
label2 = gen_new_label();
if (mod == 3) {
gen_op_mov_reg_v(ot, R_EAX, t0);
tcg_gen_br(label2);
gen_set_label(label1);
gen_op_mov_reg_v(ot, rm, t1);
} else {
/* perform no-op store cycle like physical cpu; must be
before changing accumulator to ensure idempotency if
the store faults and the instruction is restarted */
gen_op_st_v(s, ot, t0, a0);
gen_op_mov_reg_v(ot, R_EAX, t0);
tcg_gen_br(label2);
gen_set_label(label1);
gen_op_st_v(s, ot, t1, a0);
}
gen_set_label(label2);
tcg_gen_mov_tl(cpu_cc_src, t0);
tcg_gen_mov_tl(cpu_cc_srcT, t2);
tcg_gen_sub_tl(cpu_cc_dst, t2, t0);
set_cc_op(s, CC_OP_SUBB + ot);
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_temp_free(t2);
tcg_temp_free(a0);
}
break;
case 0x1c7: /* cmpxchg8b */
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
if ((mod == 3) || ((modrm & 0x38) != 0x8))
goto illegal_op;
#ifdef TARGET_X86_64
if (dflag == MO_64) {
if (!(s->cpuid_ext_features & CPUID_EXT_CX16))
goto illegal_op;
gen_jmp_im(pc_start - s->cs_base);
gen_update_cc_op(s);
gen_lea_modrm(env, s, modrm);
gen_helper_cmpxchg16b(cpu_env, cpu_A0);
} else
#endif
{
if (!(s->cpuid_features & CPUID_CX8))
goto illegal_op;
gen_jmp_im(pc_start - s->cs_base);
gen_update_cc_op(s);
gen_lea_modrm(env, s, modrm);
gen_helper_cmpxchg8b(cpu_env, cpu_A0);
}
set_cc_op(s, CC_OP_EFLAGS);
break;
/**************************/
/* push/pop */
case 0x50 ... 0x57: /* push */
gen_op_mov_v_reg(MO_32, cpu_T[0], (b & 7) | REX_B(s));
gen_push_v(s, cpu_T[0]);
break;
case 0x58 ... 0x5f: /* pop */
ot = gen_pop_T0(s);
/* NOTE: order is important for pop %sp */
gen_pop_update(s, ot);
gen_op_mov_reg_v(ot, (b & 7) | REX_B(s), cpu_T[0]);
break;
case 0x60: /* pusha */
if (CODE64(s))
goto illegal_op;
gen_pusha(s);
break;
case 0x61: /* popa */
if (CODE64(s))
goto illegal_op;
gen_popa(s);
break;
case 0x68: /* push Iv */
case 0x6a:
ot = mo_pushpop(s, dflag);
if (b == 0x68)
val = insn_get(env, s, ot);
else
val = (int8_t)insn_get(env, s, MO_8);
tcg_gen_movi_tl(cpu_T[0], val);
gen_push_v(s, cpu_T[0]);
break;
case 0x8f: /* pop Ev */
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
ot = gen_pop_T0(s);
if (mod == 3) {
/* NOTE: order is important for pop %sp */
gen_pop_update(s, ot);
rm = (modrm & 7) | REX_B(s);
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
} else {
/* NOTE: order is important too for MMU exceptions */
s->popl_esp_hack = 1 << ot;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 1);
s->popl_esp_hack = 0;
gen_pop_update(s, ot);
}
break;
case 0xc8: /* enter */
{
int level;
val = cpu_lduw_code(env, s->pc);
s->pc += 2;
level = cpu_ldub_code(env, s->pc++);
gen_enter(s, val, level);
}
break;
case 0xc9: /* leave */
/* XXX: exception not precise (ESP is updated before potential exception) */
if (CODE64(s)) {
gen_op_mov_v_reg(MO_64, cpu_T[0], R_EBP);
gen_op_mov_reg_v(MO_64, R_ESP, cpu_T[0]);
} else if (s->ss32) {
gen_op_mov_v_reg(MO_32, cpu_T[0], R_EBP);
gen_op_mov_reg_v(MO_32, R_ESP, cpu_T[0]);
} else {
gen_op_mov_v_reg(MO_16, cpu_T[0], R_EBP);
gen_op_mov_reg_v(MO_16, R_ESP, cpu_T[0]);
}
ot = gen_pop_T0(s);
gen_op_mov_reg_v(ot, R_EBP, cpu_T[0]);
gen_pop_update(s, ot);
break;
case 0x06: /* push es */
case 0x0e: /* push cs */
case 0x16: /* push ss */
case 0x1e: /* push ds */
if (CODE64(s))
goto illegal_op;
gen_op_movl_T0_seg(b >> 3);
gen_push_v(s, cpu_T[0]);
break;
case 0x1a0: /* push fs */
case 0x1a8: /* push gs */
gen_op_movl_T0_seg((b >> 3) & 7);
gen_push_v(s, cpu_T[0]);
break;
case 0x07: /* pop es */
case 0x17: /* pop ss */
case 0x1f: /* pop ds */
if (CODE64(s))
goto illegal_op;
reg = b >> 3;
ot = gen_pop_T0(s);
gen_movl_seg_T0(s, reg, pc_start - s->cs_base);
gen_pop_update(s, ot);
if (reg == R_SS) {
/* if reg == SS, inhibit interrupts/trace. */
/* If several instructions disable interrupts, only the
_first_ does it */
if (!(s->tb->flags & HF_INHIBIT_IRQ_MASK))
gen_helper_set_inhibit_irq(cpu_env);
s->tf = 0;
}
if (s->is_jmp) {
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
case 0x1a1: /* pop fs */
case 0x1a9: /* pop gs */
ot = gen_pop_T0(s);
gen_movl_seg_T0(s, (b >> 3) & 7, pc_start - s->cs_base);
gen_pop_update(s, ot);
if (s->is_jmp) {
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
/**************************/
/* mov */
case 0x88:
case 0x89: /* mov Gv, Ev */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
/* generate a generic store */
gen_ldst_modrm(env, s, modrm, ot, reg, 1);
break;
case 0xc6:
case 0xc7: /* mov Ev, Iv */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
if (mod != 3) {
s->rip_offset = insn_const_size(ot);
gen_lea_modrm(env, s, modrm);
}
val = insn_get(env, s, ot);
tcg_gen_movi_tl(cpu_T[0], val);
if (mod != 3) {
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_reg_v(ot, (modrm & 7) | REX_B(s), cpu_T[0]);
}
break;
case 0x8a:
case 0x8b: /* mov Ev, Gv */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
case 0x8e: /* mov seg, Gv */
modrm = cpu_ldub_code(env, s->pc++);
reg = (modrm >> 3) & 7;
if (reg >= 6 || reg == R_CS)
goto illegal_op;
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
gen_movl_seg_T0(s, reg, pc_start - s->cs_base);
if (reg == R_SS) {
/* if reg == SS, inhibit interrupts/trace */
/* If several instructions disable interrupts, only the
_first_ does it */
if (!(s->tb->flags & HF_INHIBIT_IRQ_MASK))
gen_helper_set_inhibit_irq(cpu_env);
s->tf = 0;
}
if (s->is_jmp) {
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
case 0x8c: /* mov Gv, seg */
modrm = cpu_ldub_code(env, s->pc++);
reg = (modrm >> 3) & 7;
mod = (modrm >> 6) & 3;
if (reg >= 6)
goto illegal_op;
gen_op_movl_T0_seg(reg);
ot = mod == 3 ? dflag : MO_16;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 1);
break;
case 0x1b6: /* movzbS Gv, Eb */
case 0x1b7: /* movzwS Gv, Eb */
case 0x1be: /* movsbS Gv, Eb */
case 0x1bf: /* movswS Gv, Eb */
{
TCGMemOp d_ot;
TCGMemOp s_ot;
/* d_ot is the size of destination */
d_ot = dflag;
/* ot is the size of source */
ot = (b & 1) + MO_8;
/* s_ot is the sign+size of source */
s_ot = b & 8 ? MO_SIGN | ot : ot;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
if (mod == 3) {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
switch (s_ot) {
case MO_UB:
tcg_gen_ext8u_tl(cpu_T[0], cpu_T[0]);
break;
case MO_SB:
tcg_gen_ext8s_tl(cpu_T[0], cpu_T[0]);
break;
case MO_UW:
tcg_gen_ext16u_tl(cpu_T[0], cpu_T[0]);
break;
default:
case MO_SW:
tcg_gen_ext16s_tl(cpu_T[0], cpu_T[0]);
break;
}
gen_op_mov_reg_v(d_ot, reg, cpu_T[0]);
} else {
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, s_ot, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(d_ot, reg, cpu_T[0]);
}
}
break;
case 0x8d: /* lea */
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
if (mod == 3)
goto illegal_op;
reg = ((modrm >> 3) & 7) | rex_r;
/* we must ensure that no segment is added */
s->override = -1;
val = s->addseg;
s->addseg = 0;
gen_lea_modrm(env, s, modrm);
s->addseg = val;
gen_op_mov_reg_v(ot, reg, cpu_A0);
break;
case 0xa0: /* mov EAX, Ov */
case 0xa1:
case 0xa2: /* mov Ov, EAX */
case 0xa3:
{
target_ulong offset_addr;
ot = mo_b_d(b, dflag);
switch (s->aflag) {
#ifdef TARGET_X86_64
case MO_64:
offset_addr = cpu_ldq_code(env, s->pc);
s->pc += 8;
break;
#endif
default:
offset_addr = insn_get(env, s, s->aflag);
break;
}
tcg_gen_movi_tl(cpu_A0, offset_addr);
gen_add_A0_ds_seg(s);
if ((b & 2) == 0) {
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(ot, R_EAX, cpu_T[0]);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], R_EAX);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
}
}
break;
case 0xd7: /* xlat */
tcg_gen_mov_tl(cpu_A0, cpu_regs[R_EBX]);
tcg_gen_ext8u_tl(cpu_T[0], cpu_regs[R_EAX]);
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_T[0]);
gen_extu(s->aflag, cpu_A0);
gen_add_A0_ds_seg(s);
gen_op_ld_v(s, MO_8, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(MO_8, R_EAX, cpu_T[0]);
break;
case 0xb0 ... 0xb7: /* mov R, Ib */
val = insn_get(env, s, MO_8);
tcg_gen_movi_tl(cpu_T[0], val);
gen_op_mov_reg_v(MO_8, (b & 7) | REX_B(s), cpu_T[0]);
break;
case 0xb8 ... 0xbf: /* mov R, Iv */
#ifdef TARGET_X86_64
if (dflag == MO_64) {
uint64_t tmp;
/* 64 bit case */
tmp = cpu_ldq_code(env, s->pc);
s->pc += 8;
reg = (b & 7) | REX_B(s);
tcg_gen_movi_tl(cpu_T[0], tmp);
gen_op_mov_reg_v(MO_64, reg, cpu_T[0]);
} else
#endif
{
ot = dflag;
val = insn_get(env, s, ot);
reg = (b & 7) | REX_B(s);
tcg_gen_movi_tl(cpu_T[0], val);
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
}
break;
case 0x91 ... 0x97: /* xchg R, EAX */
do_xchg_reg_eax:
ot = dflag;
reg = (b & 7) | REX_B(s);
rm = R_EAX;
goto do_xchg_reg;
case 0x86:
case 0x87: /* xchg Ev, Gv */
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
if (mod == 3) {
rm = (modrm & 7) | REX_B(s);
do_xchg_reg:
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_op_mov_v_reg(ot, cpu_T[1], rm);
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
gen_op_mov_reg_v(ot, reg, cpu_T[1]);
} else {
gen_lea_modrm(env, s, modrm);
gen_op_mov_v_reg(ot, cpu_T[0], reg);
/* for xchg, lock is implicit */
if (!(prefixes & PREFIX_LOCK))
gen_helper_lock();
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
if (!(prefixes & PREFIX_LOCK))
gen_helper_unlock();
gen_op_mov_reg_v(ot, reg, cpu_T[1]);
}
break;
case 0xc4: /* les Gv */
/* In CODE64 this is VEX3; see above. */
op = R_ES;
goto do_lxx;
case 0xc5: /* lds Gv */
/* In CODE64 this is VEX2; see above. */
op = R_DS;
goto do_lxx;
case 0x1b2: /* lss Gv */
op = R_SS;
goto do_lxx;
case 0x1b4: /* lfs Gv */
op = R_FS;
goto do_lxx;
case 0x1b5: /* lgs Gv */
op = R_GS;
do_lxx:
ot = dflag != MO_16 ? MO_32 : MO_16;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, ot, cpu_T[1], cpu_A0);
gen_add_A0_im(s, 1 << ot);
/* load the segment first to handle exceptions properly */
gen_op_ld_v(s, MO_16, cpu_T[0], cpu_A0);
gen_movl_seg_T0(s, op, pc_start - s->cs_base);
/* then put the data */
gen_op_mov_reg_v(ot, reg, cpu_T[1]);
if (s->is_jmp) {
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
/************************/
/* shifts */
case 0xc0:
case 0xc1:
/* shift Ev,Ib */
shift = 2;
grp2:
{
ot = mo_b_d(b, dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
op = (modrm >> 3) & 7;
if (mod != 3) {
if (shift == 2) {
s->rip_offset = 1;
}
gen_lea_modrm(env, s, modrm);
opreg = OR_TMP0;
} else {
opreg = (modrm & 7) | REX_B(s);
}
/* simpler op */
if (shift == 0) {
gen_shift(s, op, ot, opreg, OR_ECX);
} else {
if (shift == 2) {
shift = cpu_ldub_code(env, s->pc++);
}
gen_shifti(s, op, ot, opreg, shift);
}
}
break;
case 0xd0:
case 0xd1:
/* shift Ev,1 */
shift = 1;
goto grp2;
case 0xd2:
case 0xd3:
/* shift Ev,cl */
shift = 0;
goto grp2;
case 0x1a4: /* shld imm */
op = 0;
shift = 1;
goto do_shiftd;
case 0x1a5: /* shld cl */
op = 0;
shift = 0;
goto do_shiftd;
case 0x1ac: /* shrd imm */
op = 1;
shift = 1;
goto do_shiftd;
case 0x1ad: /* shrd cl */
op = 1;
shift = 0;
do_shiftd:
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
reg = ((modrm >> 3) & 7) | rex_r;
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
opreg = OR_TMP0;
} else {
opreg = rm;
}
gen_op_mov_v_reg(ot, cpu_T[1], reg);
if (shift) {
TCGv imm = tcg_const_tl(cpu_ldub_code(env, s->pc++));
gen_shiftd_rm_T1(s, ot, opreg, op, imm);
tcg_temp_free(imm);
} else {
gen_shiftd_rm_T1(s, ot, opreg, op, cpu_regs[R_ECX]);
}
break;
/************************/
/* floats */
case 0xd8 ... 0xdf:
if (s->flags & (HF_EM_MASK | HF_TS_MASK)) {
/* if CR0.EM or CR0.TS are set, generate an FPU exception */
/* XXX: what to do if illegal op ? */
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
rm = modrm & 7;
op = ((b & 7) << 3) | ((modrm >> 3) & 7);
if (mod != 3) {
/* memory op */
gen_lea_modrm(env, s, modrm);
switch(op) {
case 0x00 ... 0x07: /* fxxxs */
case 0x10 ... 0x17: /* fixxxl */
case 0x20 ... 0x27: /* fxxxl */
case 0x30 ... 0x37: /* fixxx */
{
int op1;
op1 = op & 7;
switch(op >> 4) {
case 0:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
gen_helper_flds_FT0(cpu_env, cpu_tmp2_i32);
break;
case 1:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
gen_helper_fildl_FT0(cpu_env, cpu_tmp2_i32);
break;
case 2:
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
gen_helper_fldl_FT0(cpu_env, cpu_tmp1_i64);
break;
case 3:
default:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LESW);
gen_helper_fildl_FT0(cpu_env, cpu_tmp2_i32);
break;
}
gen_helper_fp_arith_ST0_FT0(op1);
if (op1 == 3) {
/* fcomp needs pop */
gen_helper_fpop(cpu_env);
}
}
break;
case 0x08: /* flds */
case 0x0a: /* fsts */
case 0x0b: /* fstps */
case 0x18 ... 0x1b: /* fildl, fisttpl, fistl, fistpl */
case 0x28 ... 0x2b: /* fldl, fisttpll, fstl, fstpl */
case 0x38 ... 0x3b: /* filds, fisttps, fists, fistps */
switch(op & 7) {
case 0:
switch(op >> 4) {
case 0:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
gen_helper_flds_ST0(cpu_env, cpu_tmp2_i32);
break;
case 1:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
gen_helper_fildl_ST0(cpu_env, cpu_tmp2_i32);
break;
case 2:
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
gen_helper_fldl_ST0(cpu_env, cpu_tmp1_i64);
break;
case 3:
default:
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LESW);
gen_helper_fildl_ST0(cpu_env, cpu_tmp2_i32);
break;
}
break;
case 1:
/* XXX: the corresponding CPUID bit must be tested ! */
switch(op >> 4) {
case 1:
gen_helper_fisttl_ST0(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
break;
case 2:
gen_helper_fisttll_ST0(cpu_tmp1_i64, cpu_env);
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
break;
case 3:
default:
gen_helper_fistt_ST0(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUW);
break;
}
gen_helper_fpop(cpu_env);
break;
default:
switch(op >> 4) {
case 0:
gen_helper_fsts_ST0(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
break;
case 1:
gen_helper_fistl_ST0(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
break;
case 2:
gen_helper_fstl_ST0(cpu_tmp1_i64, cpu_env);
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0,
s->mem_index, MO_LEQ);
break;
case 3:
default:
gen_helper_fist_ST0(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUW);
break;
}
if ((op & 7) == 3)
gen_helper_fpop(cpu_env);
break;
}
break;
case 0x0c: /* fldenv mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fldenv(cpu_env, cpu_A0, tcg_const_i32(dflag - 1));
break;
case 0x0d: /* fldcw mem */
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUW);
gen_helper_fldcw(cpu_env, cpu_tmp2_i32);
break;
case 0x0e: /* fnstenv mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fstenv(cpu_env, cpu_A0, tcg_const_i32(dflag - 1));
break;
case 0x0f: /* fnstcw mem */
gen_helper_fnstcw(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUW);
break;
case 0x1d: /* fldt mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fldt_ST0(cpu_env, cpu_A0);
break;
case 0x1f: /* fstpt mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fstt_ST0(cpu_env, cpu_A0);
gen_helper_fpop(cpu_env);
break;
case 0x2c: /* frstor mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_frstor(cpu_env, cpu_A0, tcg_const_i32(dflag - 1));
break;
case 0x2e: /* fnsave mem */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fsave(cpu_env, cpu_A0, tcg_const_i32(dflag - 1));
break;
case 0x2f: /* fnstsw mem */
gen_helper_fnstsw(cpu_tmp2_i32, cpu_env);
tcg_gen_qemu_st_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUW);
break;
case 0x3c: /* fbld */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fbld_ST0(cpu_env, cpu_A0);
break;
case 0x3e: /* fbstp */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fbst_ST0(cpu_env, cpu_A0);
gen_helper_fpop(cpu_env);
break;
case 0x3d: /* fildll */
tcg_gen_qemu_ld_i64(cpu_tmp1_i64, cpu_A0, s->mem_index, MO_LEQ);
gen_helper_fildll_ST0(cpu_env, cpu_tmp1_i64);
break;
case 0x3f: /* fistpll */
gen_helper_fistll_ST0(cpu_tmp1_i64, cpu_env);
tcg_gen_qemu_st_i64(cpu_tmp1_i64, cpu_A0, s->mem_index, MO_LEQ);
gen_helper_fpop(cpu_env);
break;
default:
goto illegal_op;
}
} else {
/* register float ops */
opreg = rm;
switch(op) {
case 0x08: /* fld sti */
gen_helper_fpush(cpu_env);
gen_helper_fmov_ST0_STN(cpu_env,
tcg_const_i32((opreg + 1) & 7));
break;
case 0x09: /* fxchg sti */
case 0x29: /* fxchg4 sti, undocumented op */
case 0x39: /* fxchg7 sti, undocumented op */
gen_helper_fxchg_ST0_STN(cpu_env, tcg_const_i32(opreg));
break;
case 0x0a: /* grp d9/2 */
switch(rm) {
case 0: /* fnop */
/* check exceptions (FreeBSD FPU probe) */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fwait(cpu_env);
break;
default:
goto illegal_op;
}
break;
case 0x0c: /* grp d9/4 */
switch(rm) {
case 0: /* fchs */
gen_helper_fchs_ST0(cpu_env);
break;
case 1: /* fabs */
gen_helper_fabs_ST0(cpu_env);
break;
case 4: /* ftst */
gen_helper_fldz_FT0(cpu_env);
gen_helper_fcom_ST0_FT0(cpu_env);
break;
case 5: /* fxam */
gen_helper_fxam_ST0(cpu_env);
break;
default:
goto illegal_op;
}
break;
case 0x0d: /* grp d9/5 */
{
switch(rm) {
case 0:
gen_helper_fpush(cpu_env);
gen_helper_fld1_ST0(cpu_env);
break;
case 1:
gen_helper_fpush(cpu_env);
gen_helper_fldl2t_ST0(cpu_env);
break;
case 2:
gen_helper_fpush(cpu_env);
gen_helper_fldl2e_ST0(cpu_env);
break;
case 3:
gen_helper_fpush(cpu_env);
gen_helper_fldpi_ST0(cpu_env);
break;
case 4:
gen_helper_fpush(cpu_env);
gen_helper_fldlg2_ST0(cpu_env);
break;
case 5:
gen_helper_fpush(cpu_env);
gen_helper_fldln2_ST0(cpu_env);
break;
case 6:
gen_helper_fpush(cpu_env);
gen_helper_fldz_ST0(cpu_env);
break;
default:
goto illegal_op;
}
}
break;
case 0x0e: /* grp d9/6 */
switch(rm) {
case 0: /* f2xm1 */
gen_helper_f2xm1(cpu_env);
break;
case 1: /* fyl2x */
gen_helper_fyl2x(cpu_env);
break;
case 2: /* fptan */
gen_helper_fptan(cpu_env);
break;
case 3: /* fpatan */
gen_helper_fpatan(cpu_env);
break;
case 4: /* fxtract */
gen_helper_fxtract(cpu_env);
break;
case 5: /* fprem1 */
gen_helper_fprem1(cpu_env);
break;
case 6: /* fdecstp */
gen_helper_fdecstp(cpu_env);
break;
default:
case 7: /* fincstp */
gen_helper_fincstp(cpu_env);
break;
}
break;
case 0x0f: /* grp d9/7 */
switch(rm) {
case 0: /* fprem */
gen_helper_fprem(cpu_env);
break;
case 1: /* fyl2xp1 */
gen_helper_fyl2xp1(cpu_env);
break;
case 2: /* fsqrt */
gen_helper_fsqrt(cpu_env);
break;
case 3: /* fsincos */
gen_helper_fsincos(cpu_env);
break;
case 5: /* fscale */
gen_helper_fscale(cpu_env);
break;
case 4: /* frndint */
gen_helper_frndint(cpu_env);
break;
case 6: /* fsin */
gen_helper_fsin(cpu_env);
break;
default:
case 7: /* fcos */
gen_helper_fcos(cpu_env);
break;
}
break;
case 0x00: case 0x01: case 0x04 ... 0x07: /* fxxx st, sti */
case 0x20: case 0x21: case 0x24 ... 0x27: /* fxxx sti, st */
case 0x30: case 0x31: case 0x34 ... 0x37: /* fxxxp sti, st */
{
int op1;
op1 = op & 7;
if (op >= 0x20) {
gen_helper_fp_arith_STN_ST0(op1, opreg);
if (op >= 0x30)
gen_helper_fpop(cpu_env);
} else {
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fp_arith_ST0_FT0(op1);
}
}
break;
case 0x02: /* fcom */
case 0x22: /* fcom2, undocumented op */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fcom_ST0_FT0(cpu_env);
break;
case 0x03: /* fcomp */
case 0x23: /* fcomp3, undocumented op */
case 0x32: /* fcomp5, undocumented op */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fcom_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
break;
case 0x15: /* da/5 */
switch(rm) {
case 1: /* fucompp */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1));
gen_helper_fucom_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
gen_helper_fpop(cpu_env);
break;
default:
goto illegal_op;
}
break;
case 0x1c:
switch(rm) {
case 0: /* feni (287 only, just do nop here) */
break;
case 1: /* fdisi (287 only, just do nop here) */
break;
case 2: /* fclex */
gen_helper_fclex(cpu_env);
break;
case 3: /* fninit */
gen_helper_fninit(cpu_env);
break;
case 4: /* fsetpm (287 only, just do nop here) */
break;
default:
goto illegal_op;
}
break;
case 0x1d: /* fucomi */
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
gen_update_cc_op(s);
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fucomi_ST0_FT0(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x1e: /* fcomi */
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
gen_update_cc_op(s);
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fcomi_ST0_FT0(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x28: /* ffree sti */
gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg));
break;
case 0x2a: /* fst sti */
gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg));
break;
case 0x2b: /* fstp sti */
case 0x0b: /* fstp1 sti, undocumented op */
case 0x3a: /* fstp8 sti, undocumented op */
case 0x3b: /* fstp9 sti, undocumented op */
gen_helper_fmov_STN_ST0(cpu_env, tcg_const_i32(opreg));
gen_helper_fpop(cpu_env);
break;
case 0x2c: /* fucom st(i) */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fucom_ST0_FT0(cpu_env);
break;
case 0x2d: /* fucomp st(i) */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fucom_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
break;
case 0x33: /* de/3 */
switch(rm) {
case 1: /* fcompp */
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(1));
gen_helper_fcom_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
gen_helper_fpop(cpu_env);
break;
default:
goto illegal_op;
}
break;
case 0x38: /* ffreep sti, undocumented op */
gen_helper_ffree_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fpop(cpu_env);
break;
case 0x3c: /* df/4 */
switch(rm) {
case 0:
gen_helper_fnstsw(cpu_tmp2_i32, cpu_env);
tcg_gen_extu_i32_tl(cpu_T[0], cpu_tmp2_i32);
gen_op_mov_reg_v(MO_16, R_EAX, cpu_T[0]);
break;
default:
goto illegal_op;
}
break;
case 0x3d: /* fucomip */
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
gen_update_cc_op(s);
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fucomi_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x3e: /* fcomip */
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
gen_update_cc_op(s);
gen_helper_fmov_FT0_STN(cpu_env, tcg_const_i32(opreg));
gen_helper_fcomi_ST0_FT0(cpu_env);
gen_helper_fpop(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x10 ... 0x13: /* fcmovxx */
case 0x18 ... 0x1b:
{
int op1, l1;
static const uint8_t fcmov_cc[8] = {
(JCC_B << 1),
(JCC_Z << 1),
(JCC_BE << 1),
(JCC_P << 1),
};
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
op1 = fcmov_cc[op & 3] | (((op >> 3) & 1) ^ 1);
l1 = gen_new_label();
gen_jcc1_noeob(s, op1, l1);
gen_helper_fmov_ST0_STN(cpu_env, tcg_const_i32(opreg));
gen_set_label(l1);
}
break;
default:
goto illegal_op;
}
}
break;
/************************/
/* string ops */
case 0xa4: /* movsS */
case 0xa5:
ot = mo_b_d(b, dflag);
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_movs(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
gen_movs(s, ot);
}
break;
case 0xaa: /* stosS */
case 0xab:
ot = mo_b_d(b, dflag);
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_stos(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
gen_stos(s, ot);
}
break;
case 0xac: /* lodsS */
case 0xad:
ot = mo_b_d(b, dflag);
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_lods(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
gen_lods(s, ot);
}
break;
case 0xae: /* scasS */
case 0xaf:
ot = mo_b_d(b, dflag);
if (prefixes & PREFIX_REPNZ) {
gen_repz_scas(s, ot, pc_start - s->cs_base, s->pc - s->cs_base, 1);
} else if (prefixes & PREFIX_REPZ) {
gen_repz_scas(s, ot, pc_start - s->cs_base, s->pc - s->cs_base, 0);
} else {
gen_scas(s, ot);
}
break;
case 0xa6: /* cmpsS */
case 0xa7:
ot = mo_b_d(b, dflag);
if (prefixes & PREFIX_REPNZ) {
gen_repz_cmps(s, ot, pc_start - s->cs_base, s->pc - s->cs_base, 1);
} else if (prefixes & PREFIX_REPZ) {
gen_repz_cmps(s, ot, pc_start - s->cs_base, s->pc - s->cs_base, 0);
} else {
gen_cmps(s, ot);
}
break;
case 0x6c: /* insS */
case 0x6d:
ot = mo_b_d32(b, dflag);
tcg_gen_ext16u_tl(cpu_T[0], cpu_regs[R_EDX]);
gen_check_io(s, ot, pc_start - s->cs_base,
SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes) | 4);
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_ins(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
gen_ins(s, ot);
if (use_icount) {
gen_jmp(s, s->pc - s->cs_base);
}
}
break;
case 0x6e: /* outsS */
case 0x6f:
ot = mo_b_d32(b, dflag);
tcg_gen_ext16u_tl(cpu_T[0], cpu_regs[R_EDX]);
gen_check_io(s, ot, pc_start - s->cs_base,
svm_is_rep(prefixes) | 4);
if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) {
gen_repz_outs(s, ot, pc_start - s->cs_base, s->pc - s->cs_base);
} else {
gen_outs(s, ot);
if (use_icount) {
gen_jmp(s, s->pc - s->cs_base);
}
}
break;
/************************/
/* port I/O */
case 0xe4:
case 0xe5:
ot = mo_b_d32(b, dflag);
val = cpu_ldub_code(env, s->pc++);
tcg_gen_movi_tl(cpu_T[0], val);
gen_check_io(s, ot, pc_start - s->cs_base,
SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes));
if (use_icount)
gen_io_start();
tcg_gen_movi_i32(cpu_tmp2_i32, val);
gen_helper_in_func(ot, cpu_T[1], cpu_tmp2_i32);
gen_op_mov_reg_v(ot, R_EAX, cpu_T[1]);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
case 0xe6:
case 0xe7:
ot = mo_b_d32(b, dflag);
val = cpu_ldub_code(env, s->pc++);
tcg_gen_movi_tl(cpu_T[0], val);
gen_check_io(s, ot, pc_start - s->cs_base,
svm_is_rep(prefixes));
gen_op_mov_v_reg(ot, cpu_T[1], R_EAX);
if (use_icount)
gen_io_start();
tcg_gen_movi_i32(cpu_tmp2_i32, val);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]);
gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
case 0xec:
case 0xed:
ot = mo_b_d32(b, dflag);
tcg_gen_ext16u_tl(cpu_T[0], cpu_regs[R_EDX]);
gen_check_io(s, ot, pc_start - s->cs_base,
SVM_IOIO_TYPE_MASK | svm_is_rep(prefixes));
if (use_icount)
gen_io_start();
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_in_func(ot, cpu_T[1], cpu_tmp2_i32);
gen_op_mov_reg_v(ot, R_EAX, cpu_T[1]);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
case 0xee:
case 0xef:
ot = mo_b_d32(b, dflag);
tcg_gen_ext16u_tl(cpu_T[0], cpu_regs[R_EDX]);
gen_check_io(s, ot, pc_start - s->cs_base,
svm_is_rep(prefixes));
gen_op_mov_v_reg(ot, cpu_T[1], R_EAX);
if (use_icount)
gen_io_start();
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
tcg_gen_trunc_tl_i32(cpu_tmp3_i32, cpu_T[1]);
gen_helper_out_func(ot, cpu_tmp2_i32, cpu_tmp3_i32);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
/************************/
/* control */
case 0xc2: /* ret im */
val = cpu_ldsw_code(env, s->pc);
s->pc += 2;
ot = gen_pop_T0(s);
gen_stack_update(s, val + (1 << ot));
/* Note that gen_pop_T0 uses a zero-extending load. */
gen_op_jmp_v(cpu_T[0]);
gen_eob(s);
break;
case 0xc3: /* ret */
ot = gen_pop_T0(s);
gen_pop_update(s, ot);
/* Note that gen_pop_T0 uses a zero-extending load. */
gen_op_jmp_v(cpu_T[0]);
gen_eob(s);
break;
case 0xca: /* lret im */
val = cpu_ldsw_code(env, s->pc);
s->pc += 2;
do_lret:
if (s->pe && !s->vm86) {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_lret_protected(cpu_env, tcg_const_i32(dflag - 1),
tcg_const_i32(val));
} else {
gen_stack_A0(s);
/* pop offset */
gen_op_ld_v(s, dflag, cpu_T[0], cpu_A0);
/* NOTE: keeping EIP updated is not a problem in case of
exception */
gen_op_jmp_v(cpu_T[0]);
/* pop selector */
gen_op_addl_A0_im(1 << dflag);
gen_op_ld_v(s, dflag, cpu_T[0], cpu_A0);
gen_op_movl_seg_T0_vm(R_CS);
/* add stack offset */
gen_stack_update(s, val + (2 << dflag));
}
gen_eob(s);
break;
case 0xcb: /* lret */
val = 0;
goto do_lret;
case 0xcf: /* iret */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_IRET);
if (!s->pe) {
/* real mode */
gen_helper_iret_real(cpu_env, tcg_const_i32(dflag - 1));
set_cc_op(s, CC_OP_EFLAGS);
} else if (s->vm86) {
if (s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_helper_iret_real(cpu_env, tcg_const_i32(dflag - 1));
set_cc_op(s, CC_OP_EFLAGS);
}
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_iret_protected(cpu_env, tcg_const_i32(dflag - 1),
tcg_const_i32(s->pc - s->cs_base));
set_cc_op(s, CC_OP_EFLAGS);
}
gen_eob(s);
break;
case 0xe8: /* call im */
{
if (dflag != MO_16) {
tval = (int32_t)insn_get(env, s, MO_32);
} else {
tval = (int16_t)insn_get(env, s, MO_16);
}
next_eip = s->pc - s->cs_base;
tval += next_eip;
if (dflag == MO_16) {
tval &= 0xffff;
} else if (!CODE64(s)) {
tval &= 0xffffffff;
}
tcg_gen_movi_tl(cpu_T[0], next_eip);
gen_push_v(s, cpu_T[0]);
gen_jmp(s, tval);
}
break;
case 0x9a: /* lcall im */
{
unsigned int selector, offset;
if (CODE64(s))
goto illegal_op;
ot = dflag;
offset = insn_get(env, s, ot);
selector = insn_get(env, s, MO_16);
tcg_gen_movi_tl(cpu_T[0], selector);
tcg_gen_movi_tl(cpu_T[1], offset);
}
goto do_lcall;
case 0xe9: /* jmp im */
if (dflag != MO_16) {
tval = (int32_t)insn_get(env, s, MO_32);
} else {
tval = (int16_t)insn_get(env, s, MO_16);
}
tval += s->pc - s->cs_base;
if (dflag == MO_16) {
tval &= 0xffff;
} else if (!CODE64(s)) {
tval &= 0xffffffff;
}
gen_jmp(s, tval);
break;
case 0xea: /* ljmp im */
{
unsigned int selector, offset;
if (CODE64(s))
goto illegal_op;
ot = dflag;
offset = insn_get(env, s, ot);
selector = insn_get(env, s, MO_16);
tcg_gen_movi_tl(cpu_T[0], selector);
tcg_gen_movi_tl(cpu_T[1], offset);
}
goto do_ljmp;
case 0xeb: /* jmp Jb */
tval = (int8_t)insn_get(env, s, MO_8);
tval += s->pc - s->cs_base;
if (dflag == MO_16) {
tval &= 0xffff;
}
gen_jmp(s, tval);
break;
case 0x70 ... 0x7f: /* jcc Jb */
tval = (int8_t)insn_get(env, s, MO_8);
goto do_jcc;
case 0x180 ... 0x18f: /* jcc Jv */
if (dflag != MO_16) {
tval = (int32_t)insn_get(env, s, MO_32);
} else {
tval = (int16_t)insn_get(env, s, MO_16);
}
do_jcc:
next_eip = s->pc - s->cs_base;
tval += next_eip;
if (dflag == MO_16) {
tval &= 0xffff;
}
gen_jcc(s, b, tval, next_eip);
break;
case 0x190 ... 0x19f: /* setcc Gv */
modrm = cpu_ldub_code(env, s->pc++);
gen_setcc1(s, b, cpu_T[0]);
gen_ldst_modrm(env, s, modrm, MO_8, OR_TMP0, 1);
break;
case 0x140 ... 0x14f: /* cmov Gv, Ev */
if (!(s->cpuid_features & CPUID_CMOV)) {
goto illegal_op;
}
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_cmovcc1(env, s, ot, b, modrm, reg);
break;
/************************/
/* flags */
case 0x9c: /* pushf */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_PUSHF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_helper_read_eflags(cpu_T[0], cpu_env);
gen_push_v(s, cpu_T[0]);
}
break;
case 0x9d: /* popf */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_POPF);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
ot = gen_pop_T0(s);
if (s->cpl == 0) {
if (dflag != MO_16) {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK | AC_MASK |
ID_MASK | NT_MASK |
IF_MASK |
IOPL_MASK)));
} else {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK | AC_MASK |
ID_MASK | NT_MASK |
IF_MASK | IOPL_MASK)
& 0xffff));
}
} else {
if (s->cpl <= s->iopl) {
if (dflag != MO_16) {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK |
AC_MASK |
ID_MASK |
NT_MASK |
IF_MASK)));
} else {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK |
AC_MASK |
ID_MASK |
NT_MASK |
IF_MASK)
& 0xffff));
}
} else {
if (dflag != MO_16) {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK | AC_MASK |
ID_MASK | NT_MASK)));
} else {
gen_helper_write_eflags(cpu_env, cpu_T[0],
tcg_const_i32((TF_MASK | AC_MASK |
ID_MASK | NT_MASK)
& 0xffff));
}
}
}
gen_pop_update(s, ot);
set_cc_op(s, CC_OP_EFLAGS);
/* abort translation because TF/AC flag may change */
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
case 0x9e: /* sahf */
if (CODE64(s) && !(s->cpuid_ext3_features & CPUID_EXT3_LAHF_LM))
goto illegal_op;
gen_op_mov_v_reg(MO_8, cpu_T[0], R_AH);
gen_compute_eflags(s);
tcg_gen_andi_tl(cpu_cc_src, cpu_cc_src, CC_O);
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], CC_S | CC_Z | CC_A | CC_P | CC_C);
tcg_gen_or_tl(cpu_cc_src, cpu_cc_src, cpu_T[0]);
break;
case 0x9f: /* lahf */
if (CODE64(s) && !(s->cpuid_ext3_features & CPUID_EXT3_LAHF_LM))
goto illegal_op;
gen_compute_eflags(s);
/* Note: gen_compute_eflags() only gives the condition codes */
tcg_gen_ori_tl(cpu_T[0], cpu_cc_src, 0x02);
gen_op_mov_reg_v(MO_8, R_AH, cpu_T[0]);
break;
case 0xf5: /* cmc */
gen_compute_eflags(s);
tcg_gen_xori_tl(cpu_cc_src, cpu_cc_src, CC_C);
break;
case 0xf8: /* clc */
gen_compute_eflags(s);
tcg_gen_andi_tl(cpu_cc_src, cpu_cc_src, ~CC_C);
break;
case 0xf9: /* stc */
gen_compute_eflags(s);
tcg_gen_ori_tl(cpu_cc_src, cpu_cc_src, CC_C);
break;
case 0xfc: /* cld */
tcg_gen_movi_i32(cpu_tmp2_i32, 1);
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env, offsetof(CPUX86State, df));
break;
case 0xfd: /* std */
tcg_gen_movi_i32(cpu_tmp2_i32, -1);
tcg_gen_st_i32(cpu_tmp2_i32, cpu_env, offsetof(CPUX86State, df));
break;
/************************/
/* bit operations */
case 0x1ba: /* bt/bts/btr/btc Gv, im */
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
op = (modrm >> 3) & 7;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
if (mod != 3) {
s->rip_offset = 1;
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
}
/* load shift */
val = cpu_ldub_code(env, s->pc++);
tcg_gen_movi_tl(cpu_T[1], val);
if (op < 4)
goto illegal_op;
op -= 4;
goto bt_op;
case 0x1a3: /* bt Gv, Ev */
op = 0;
goto do_btx;
case 0x1ab: /* bts */
op = 1;
goto do_btx;
case 0x1b3: /* btr */
op = 2;
goto do_btx;
case 0x1bb: /* btc */
op = 3;
do_btx:
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
gen_op_mov_v_reg(MO_32, cpu_T[1], reg);
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
/* specific case: we need to add a displacement */
gen_exts(ot, cpu_T[1]);
tcg_gen_sari_tl(cpu_tmp0, cpu_T[1], 3 + ot);
tcg_gen_shli_tl(cpu_tmp0, cpu_tmp0, ot);
tcg_gen_add_tl(cpu_A0, cpu_A0, cpu_tmp0);
gen_op_ld_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
}
bt_op:
tcg_gen_andi_tl(cpu_T[1], cpu_T[1], (1 << (3 + ot)) - 1);
tcg_gen_shr_tl(cpu_tmp4, cpu_T[0], cpu_T[1]);
switch(op) {
case 0:
break;
case 1:
tcg_gen_movi_tl(cpu_tmp0, 1);
tcg_gen_shl_tl(cpu_tmp0, cpu_tmp0, cpu_T[1]);
tcg_gen_or_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
break;
case 2:
tcg_gen_movi_tl(cpu_tmp0, 1);
tcg_gen_shl_tl(cpu_tmp0, cpu_tmp0, cpu_T[1]);
tcg_gen_andc_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
break;
default:
case 3:
tcg_gen_movi_tl(cpu_tmp0, 1);
tcg_gen_shl_tl(cpu_tmp0, cpu_tmp0, cpu_T[1]);
tcg_gen_xor_tl(cpu_T[0], cpu_T[0], cpu_tmp0);
break;
}
if (op != 0) {
if (mod != 3) {
gen_op_st_v(s, ot, cpu_T[0], cpu_A0);
} else {
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
}
}
/* Delay all CC updates until after the store above. Note that
C is the result of the test, Z is unchanged, and the others
are all undefined. */
switch (s->cc_op) {
case CC_OP_MULB ... CC_OP_MULQ:
case CC_OP_ADDB ... CC_OP_ADDQ:
case CC_OP_ADCB ... CC_OP_ADCQ:
case CC_OP_SUBB ... CC_OP_SUBQ:
case CC_OP_SBBB ... CC_OP_SBBQ:
case CC_OP_LOGICB ... CC_OP_LOGICQ:
case CC_OP_INCB ... CC_OP_INCQ:
case CC_OP_DECB ... CC_OP_DECQ:
case CC_OP_SHLB ... CC_OP_SHLQ:
case CC_OP_SARB ... CC_OP_SARQ:
case CC_OP_BMILGB ... CC_OP_BMILGQ:
/* Z was going to be computed from the non-zero status of CC_DST.
We can get that same Z value (and the new C value) by leaving
CC_DST alone, setting CC_SRC, and using a CC_OP_SAR of the
same width. */
tcg_gen_mov_tl(cpu_cc_src, cpu_tmp4);
set_cc_op(s, ((s->cc_op - CC_OP_MULB) & 3) + CC_OP_SARB);
break;
default:
/* Otherwise, generate EFLAGS and replace the C bit. */
gen_compute_eflags(s);
tcg_gen_deposit_tl(cpu_cc_src, cpu_cc_src, cpu_tmp4,
ctz32(CC_C), 1);
break;
}
break;
case 0x1bc: /* bsf / tzcnt */
case 0x1bd: /* bsr / lzcnt */
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
gen_extu(ot, cpu_T[0]);
/* Note that lzcnt and tzcnt are in different extensions. */
if ((prefixes & PREFIX_REPZ)
&& (b & 1
? s->cpuid_ext3_features & CPUID_EXT3_ABM
: s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_BMI1)) {
int size = 8 << ot;
tcg_gen_mov_tl(cpu_cc_src, cpu_T[0]);
if (b & 1) {
/* For lzcnt, reduce the target_ulong result by the
number of zeros that we expect to find at the top. */
gen_helper_clz(cpu_T[0], cpu_T[0]);
tcg_gen_subi_tl(cpu_T[0], cpu_T[0], TARGET_LONG_BITS - size);
} else {
/* For tzcnt, a zero input must return the operand size:
force all bits outside the operand size to 1. */
target_ulong mask = (target_ulong)-2 << (size - 1);
tcg_gen_ori_tl(cpu_T[0], cpu_T[0], mask);
gen_helper_ctz(cpu_T[0], cpu_T[0]);
}
/* For lzcnt/tzcnt, C and Z bits are defined and are
related to the result. */
gen_op_update1_cc();
set_cc_op(s, CC_OP_BMILGB + ot);
} else {
/* For bsr/bsf, only the Z bit is defined and it is related
to the input and not the result. */
tcg_gen_mov_tl(cpu_cc_dst, cpu_T[0]);
set_cc_op(s, CC_OP_LOGICB + ot);
if (b & 1) {
/* For bsr, return the bit index of the first 1 bit,
not the count of leading zeros. */
gen_helper_clz(cpu_T[0], cpu_T[0]);
tcg_gen_xori_tl(cpu_T[0], cpu_T[0], TARGET_LONG_BITS - 1);
} else {
gen_helper_ctz(cpu_T[0], cpu_T[0]);
}
/* ??? The manual says that the output is undefined when the
input is zero, but real hardware leaves it unchanged, and
real programs appear to depend on that. */
tcg_gen_movi_tl(cpu_tmp0, 0);
tcg_gen_movcond_tl(TCG_COND_EQ, cpu_T[0], cpu_cc_dst, cpu_tmp0,
cpu_regs[reg], cpu_T[0]);
}
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
break;
/************************/
/* bcd */
case 0x27: /* daa */
if (CODE64(s))
goto illegal_op;
gen_update_cc_op(s);
gen_helper_daa(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x2f: /* das */
if (CODE64(s))
goto illegal_op;
gen_update_cc_op(s);
gen_helper_das(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x37: /* aaa */
if (CODE64(s))
goto illegal_op;
gen_update_cc_op(s);
gen_helper_aaa(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x3f: /* aas */
if (CODE64(s))
goto illegal_op;
gen_update_cc_op(s);
gen_helper_aas(cpu_env);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0xd4: /* aam */
if (CODE64(s))
goto illegal_op;
val = cpu_ldub_code(env, s->pc++);
if (val == 0) {
gen_exception(s, EXCP00_DIVZ, pc_start - s->cs_base);
} else {
gen_helper_aam(cpu_env, tcg_const_i32(val));
set_cc_op(s, CC_OP_LOGICB);
}
break;
case 0xd5: /* aad */
if (CODE64(s))
goto illegal_op;
val = cpu_ldub_code(env, s->pc++);
gen_helper_aad(cpu_env, tcg_const_i32(val));
set_cc_op(s, CC_OP_LOGICB);
break;
/************************/
/* misc */
case 0x90: /* nop */
/* XXX: correct lock test for all insn */
if (prefixes & PREFIX_LOCK) {
goto illegal_op;
}
/* If REX_B is set, then this is xchg eax, r8d, not a nop. */
if (REX_B(s)) {
goto do_xchg_reg_eax;
}
if (prefixes & PREFIX_REPZ) {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_pause(cpu_env, tcg_const_i32(s->pc - pc_start));
s->is_jmp = DISAS_TB_JUMP;
}
break;
case 0x9b: /* fwait */
if ((s->flags & (HF_MP_MASK | HF_TS_MASK)) ==
(HF_MP_MASK | HF_TS_MASK)) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fwait(cpu_env);
}
break;
case 0xcc: /* int3 */
gen_interrupt(s, EXCP03_INT3, pc_start - s->cs_base, s->pc - s->cs_base);
break;
case 0xcd: /* int N */
val = cpu_ldub_code(env, s->pc++);
if (s->vm86 && s->iopl != 3) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_interrupt(s, val, pc_start - s->cs_base, s->pc - s->cs_base);
}
break;
case 0xce: /* into */
if (CODE64(s))
goto illegal_op;
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_into(cpu_env, tcg_const_i32(s->pc - pc_start));
break;
#ifdef WANT_ICEBP
case 0xf1: /* icebp (undocumented, exits to external debugger) */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_ICEBP);
#if 1
gen_debug(s, pc_start - s->cs_base);
#else
/* start debug */
tb_flush(env);
qemu_set_log(CPU_LOG_INT | CPU_LOG_TB_IN_ASM);
#endif
break;
#endif
case 0xfa: /* cli */
if (!s->vm86) {
if (s->cpl <= s->iopl) {
gen_helper_cli(cpu_env);
} else {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
}
} else {
if (s->iopl == 3) {
gen_helper_cli(cpu_env);
} else {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
}
}
break;
case 0xfb: /* sti */
if (!s->vm86) {
if (s->cpl <= s->iopl) {
gen_sti:
gen_helper_sti(cpu_env);
/* interruptions are enabled only the first insn after sti */
/* If several instructions disable interrupts, only the
_first_ does it */
if (!(s->tb->flags & HF_INHIBIT_IRQ_MASK))
gen_helper_set_inhibit_irq(cpu_env);
/* give a chance to handle pending irqs */
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
}
} else {
if (s->iopl == 3) {
goto gen_sti;
} else {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
}
}
break;
case 0x62: /* bound */
if (CODE64(s))
goto illegal_op;
ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = (modrm >> 3) & 7;
mod = (modrm >> 6) & 3;
if (mod == 3)
goto illegal_op;
gen_op_mov_v_reg(ot, cpu_T[0], reg);
gen_lea_modrm(env, s, modrm);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
if (ot == MO_16) {
gen_helper_boundw(cpu_env, cpu_A0, cpu_tmp2_i32);
} else {
gen_helper_boundl(cpu_env, cpu_A0, cpu_tmp2_i32);
}
break;
case 0x1c8 ... 0x1cf: /* bswap reg */
reg = (b & 7) | REX_B(s);
#ifdef TARGET_X86_64
if (dflag == MO_64) {
gen_op_mov_v_reg(MO_64, cpu_T[0], reg);
tcg_gen_bswap64_i64(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_64, reg, cpu_T[0]);
} else
#endif
{
gen_op_mov_v_reg(MO_32, cpu_T[0], reg);
tcg_gen_ext32u_tl(cpu_T[0], cpu_T[0]);
tcg_gen_bswap32_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_32, reg, cpu_T[0]);
}
break;
case 0xd6: /* salc */
if (CODE64(s))
goto illegal_op;
gen_compute_eflags_c(s, cpu_T[0]);
tcg_gen_neg_tl(cpu_T[0], cpu_T[0]);
gen_op_mov_reg_v(MO_8, R_EAX, cpu_T[0]);
break;
case 0xe0: /* loopnz */
case 0xe1: /* loopz */
case 0xe2: /* loop */
case 0xe3: /* jecxz */
{
int l1, l2, l3;
tval = (int8_t)insn_get(env, s, MO_8);
next_eip = s->pc - s->cs_base;
tval += next_eip;
if (dflag == MO_16) {
tval &= 0xffff;
}
l1 = gen_new_label();
l2 = gen_new_label();
l3 = gen_new_label();
b &= 3;
switch(b) {
case 0: /* loopnz */
case 1: /* loopz */
gen_op_add_reg_im(s->aflag, R_ECX, -1);
gen_op_jz_ecx(s->aflag, l3);
gen_jcc1(s, (JCC_Z << 1) | (b ^ 1), l1);
break;
case 2: /* loop */
gen_op_add_reg_im(s->aflag, R_ECX, -1);
gen_op_jnz_ecx(s->aflag, l1);
break;
default:
case 3: /* jcxz */
gen_op_jz_ecx(s->aflag, l1);
break;
}
gen_set_label(l3);
gen_jmp_im(next_eip);
tcg_gen_br(l2);
gen_set_label(l1);
gen_jmp_im(tval);
gen_set_label(l2);
gen_eob(s);
}
break;
case 0x130: /* wrmsr */
case 0x132: /* rdmsr */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
gen_helper_rdmsr(cpu_env);
} else {
gen_helper_wrmsr(cpu_env);
}
}
break;
case 0x131: /* rdtsc */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
if (use_icount)
gen_io_start();
gen_helper_rdtsc(cpu_env);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
case 0x133: /* rdpmc */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_rdpmc(cpu_env);
break;
case 0x134: /* sysenter */
/* For Intel SYSENTER is valid on 64-bit */
if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1)
goto illegal_op;
if (!s->pe) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_sysenter(cpu_env);
gen_eob(s);
}
break;
case 0x135: /* sysexit */
/* For Intel SYSEXIT is valid on 64-bit */
if (CODE64(s) && env->cpuid_vendor1 != CPUID_VENDOR_INTEL_1)
goto illegal_op;
if (!s->pe) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_sysexit(cpu_env, tcg_const_i32(dflag - 1));
gen_eob(s);
}
break;
#ifdef TARGET_X86_64
case 0x105: /* syscall */
/* XXX: is it usable in real mode ? */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_syscall(cpu_env, tcg_const_i32(s->pc - pc_start));
gen_eob(s);
break;
case 0x107: /* sysret */
if (!s->pe) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_sysret(cpu_env, tcg_const_i32(dflag - 1));
/* condition codes are modified only in long mode */
if (s->lma) {
set_cc_op(s, CC_OP_EFLAGS);
}
gen_eob(s);
}
break;
#endif
case 0x1a2: /* cpuid */
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_cpuid(cpu_env);
break;
case 0xf4: /* hlt */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_hlt(cpu_env, tcg_const_i32(s->pc - pc_start));
s->is_jmp = DISAS_TB_JUMP;
}
break;
case 0x100:
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
op = (modrm >> 3) & 7;
switch(op) {
case 0: /* sldt */
if (!s->pe || s->vm86)
goto illegal_op;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,ldt.selector));
ot = mod == 3 ? dflag : MO_16;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 1);
break;
case 2: /* lldt */
if (!s->pe || s->vm86)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_LDTR_WRITE);
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_lldt(cpu_env, cpu_tmp2_i32);
}
break;
case 1: /* str */
if (!s->pe || s->vm86)
goto illegal_op;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_READ);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,tr.selector));
ot = mod == 3 ? dflag : MO_16;
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 1);
break;
case 3: /* ltr */
if (!s->pe || s->vm86)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_TR_WRITE);
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_trunc_tl_i32(cpu_tmp2_i32, cpu_T[0]);
gen_helper_ltr(cpu_env, cpu_tmp2_i32);
}
break;
case 4: /* verr */
case 5: /* verw */
if (!s->pe || s->vm86)
goto illegal_op;
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
gen_update_cc_op(s);
if (op == 4) {
gen_helper_verr(cpu_env, cpu_T[0]);
} else {
gen_helper_verw(cpu_env, cpu_T[0]);
}
set_cc_op(s, CC_OP_EFLAGS);
break;
default:
goto illegal_op;
}
break;
case 0x101:
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
op = (modrm >> 3) & 7;
rm = modrm & 7;
switch(op) {
case 0: /* sgdt */
if (mod == 3)
goto illegal_op;
gen_svm_check_intercept(s, pc_start, SVM_EXIT_GDTR_READ);
gen_lea_modrm(env, s, modrm);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, gdt.limit));
gen_op_st_v(s, MO_16, cpu_T[0], cpu_A0);
gen_add_A0_im(s, 2);
tcg_gen_ld_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, gdt.base));
if (dflag == MO_16) {
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffffff);
}
gen_op_st_v(s, CODE64(s) + MO_32, cpu_T[0], cpu_A0);
break;
case 1:
if (mod == 3) {
switch (rm) {
case 0: /* monitor */
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
s->cpl != 0)
goto illegal_op;
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
tcg_gen_mov_tl(cpu_A0, cpu_regs[R_EAX]);
gen_extu(s->aflag, cpu_A0);
gen_add_A0_ds_seg(s);
gen_helper_monitor(cpu_env, cpu_A0);
break;
case 1: /* mwait */
if (!(s->cpuid_ext_features & CPUID_EXT_MONITOR) ||
s->cpl != 0)
goto illegal_op;
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_mwait(cpu_env, tcg_const_i32(s->pc - pc_start));
gen_eob(s);
break;
case 2: /* clac */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SMAP) ||
s->cpl != 0) {
goto illegal_op;
}
gen_helper_clac(cpu_env);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
break;
case 3: /* stac */
if (!(s->cpuid_7_0_ebx_features & CPUID_7_0_EBX_SMAP) ||
s->cpl != 0) {
goto illegal_op;
}
gen_helper_stac(cpu_env);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
break;
default:
goto illegal_op;
}
} else { /* sidt */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_IDTR_READ);
gen_lea_modrm(env, s, modrm);
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, idt.limit));
gen_op_st_v(s, MO_16, cpu_T[0], cpu_A0);
gen_add_A0_im(s, 2);
tcg_gen_ld_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, idt.base));
if (dflag == MO_16) {
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffffff);
}
gen_op_st_v(s, CODE64(s) + MO_32, cpu_T[0], cpu_A0);
}
break;
case 2: /* lgdt */
case 3: /* lidt */
if (mod == 3) {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
switch(rm) {
case 0: /* VMRUN */
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_vmrun(cpu_env, tcg_const_i32(s->aflag - 1),
tcg_const_i32(s->pc - pc_start));
tcg_gen_exit_tb(0);
s->is_jmp = DISAS_TB_JUMP;
}
break;
case 1: /* VMMCALL */
if (!(s->flags & HF_SVME_MASK))
goto illegal_op;
gen_helper_vmmcall(cpu_env);
break;
case 2: /* VMLOAD */
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_vmload(cpu_env, tcg_const_i32(s->aflag - 1));
}
break;
case 3: /* VMSAVE */
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_vmsave(cpu_env, tcg_const_i32(s->aflag - 1));
}
break;
case 4: /* STGI */
if ((!(s->flags & HF_SVME_MASK) &&
!(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
!s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_stgi(cpu_env);
}
break;
case 5: /* CLGI */
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_clgi(cpu_env);
}
break;
case 6: /* SKINIT */
if ((!(s->flags & HF_SVME_MASK) &&
!(s->cpuid_ext3_features & CPUID_EXT3_SKINIT)) ||
!s->pe)
goto illegal_op;
gen_helper_skinit(cpu_env);
break;
case 7: /* INVLPGA */
if (!(s->flags & HF_SVME_MASK) || !s->pe)
goto illegal_op;
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
break;
} else {
gen_helper_invlpga(cpu_env,
tcg_const_i32(s->aflag - 1));
}
break;
default:
goto illegal_op;
}
} else if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start,
op==2 ? SVM_EXIT_GDTR_WRITE : SVM_EXIT_IDTR_WRITE);
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, MO_16, cpu_T[1], cpu_A0);
gen_add_A0_im(s, 2);
gen_op_ld_v(s, CODE64(s) + MO_32, cpu_T[0], cpu_A0);
if (dflag == MO_16) {
tcg_gen_andi_tl(cpu_T[0], cpu_T[0], 0xffffff);
}
if (op == 2) {
tcg_gen_st_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,gdt.base));
tcg_gen_st32_tl(cpu_T[1], cpu_env, offsetof(CPUX86State,gdt.limit));
} else {
tcg_gen_st_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,idt.base));
tcg_gen_st32_tl(cpu_T[1], cpu_env, offsetof(CPUX86State,idt.limit));
}
}
break;
case 4: /* smsw */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_CR0);
#if defined TARGET_X86_64 && defined HOST_WORDS_BIGENDIAN
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[0]) + 4);
#else
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,cr[0]));
#endif
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 1);
break;
case 6: /* lmsw */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0);
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
gen_helper_lmsw(cpu_env, cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
case 7:
if (mod != 3) { /* invlpg */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_lea_modrm(env, s, modrm);
gen_helper_invlpg(cpu_env, cpu_A0);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
} else {
switch (rm) {
case 0: /* swapgs */
#ifdef TARGET_X86_64
if (CODE64(s)) {
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
tcg_gen_ld_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,segs[R_GS].base));
tcg_gen_ld_tl(cpu_T[1], cpu_env,
offsetof(CPUX86State,kernelgsbase));
tcg_gen_st_tl(cpu_T[1], cpu_env,
offsetof(CPUX86State,segs[R_GS].base));
tcg_gen_st_tl(cpu_T[0], cpu_env,
offsetof(CPUX86State,kernelgsbase));
}
} else
#endif
{
goto illegal_op;
}
break;
case 1: /* rdtscp */
if (!(s->cpuid_ext2_features & CPUID_EXT2_RDTSCP))
goto illegal_op;
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
if (use_icount)
gen_io_start();
gen_helper_rdtscp(cpu_env);
if (use_icount) {
gen_io_end();
gen_jmp(s, s->pc - s->cs_base);
}
break;
default:
goto illegal_op;
}
}
break;
default:
goto illegal_op;
}
break;
case 0x108: /* invd */
case 0x109: /* wbinvd */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start, (b & 2) ? SVM_EXIT_INVD : SVM_EXIT_WBINVD);
/* nothing to do */
}
break;
case 0x63: /* arpl or movslS (x86_64) */
#ifdef TARGET_X86_64
if (CODE64(s)) {
int d_ot;
/* d_ot is the size of destination */
d_ot = dflag;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
mod = (modrm >> 6) & 3;
rm = (modrm & 7) | REX_B(s);
if (mod == 3) {
gen_op_mov_v_reg(MO_32, cpu_T[0], rm);
/* sign extend */
if (d_ot == MO_64) {
tcg_gen_ext32s_tl(cpu_T[0], cpu_T[0]);
}
gen_op_mov_reg_v(d_ot, reg, cpu_T[0]);
} else {
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, MO_32 | MO_SIGN, cpu_T[0], cpu_A0);
gen_op_mov_reg_v(d_ot, reg, cpu_T[0]);
}
} else
#endif
{
int label1;
TCGv t0, t1, t2, a0;
if (!s->pe || s->vm86)
goto illegal_op;
t0 = tcg_temp_local_new();
t1 = tcg_temp_local_new();
t2 = tcg_temp_local_new();
ot = MO_16;
modrm = cpu_ldub_code(env, s->pc++);
reg = (modrm >> 3) & 7;
mod = (modrm >> 6) & 3;
rm = modrm & 7;
if (mod != 3) {
gen_lea_modrm(env, s, modrm);
gen_op_ld_v(s, ot, t0, cpu_A0);
a0 = tcg_temp_local_new();
tcg_gen_mov_tl(a0, cpu_A0);
} else {
gen_op_mov_v_reg(ot, t0, rm);
TCGV_UNUSED(a0);
}
gen_op_mov_v_reg(ot, t1, reg);
tcg_gen_andi_tl(cpu_tmp0, t0, 3);
tcg_gen_andi_tl(t1, t1, 3);
tcg_gen_movi_tl(t2, 0);
label1 = gen_new_label();
tcg_gen_brcond_tl(TCG_COND_GE, cpu_tmp0, t1, label1);
tcg_gen_andi_tl(t0, t0, ~3);
tcg_gen_or_tl(t0, t0, t1);
tcg_gen_movi_tl(t2, CC_Z);
gen_set_label(label1);
if (mod != 3) {
gen_op_st_v(s, ot, t0, a0);
tcg_temp_free(a0);
} else {
gen_op_mov_reg_v(ot, rm, t0);
}
gen_compute_eflags(s);
tcg_gen_andi_tl(cpu_cc_src, cpu_cc_src, ~CC_Z);
tcg_gen_or_tl(cpu_cc_src, cpu_cc_src, t2);
tcg_temp_free(t0);
tcg_temp_free(t1);
tcg_temp_free(t2);
}
break;
case 0x102: /* lar */
case 0x103: /* lsl */
{
int label1;
TCGv t0;
if (!s->pe || s->vm86)
goto illegal_op;
ot = dflag != MO_16 ? MO_32 : MO_16;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
gen_ldst_modrm(env, s, modrm, MO_16, OR_TMP0, 0);
t0 = tcg_temp_local_new();
gen_update_cc_op(s);
if (b == 0x102) {
gen_helper_lar(t0, cpu_env, cpu_T[0]);
} else {
gen_helper_lsl(t0, cpu_env, cpu_T[0]);
}
tcg_gen_andi_tl(cpu_tmp0, cpu_cc_src, CC_Z);
label1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_tmp0, 0, label1);
gen_op_mov_reg_v(ot, reg, t0);
gen_set_label(label1);
set_cc_op(s, CC_OP_EFLAGS);
tcg_temp_free(t0);
}
break;
case 0x118:
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
op = (modrm >> 3) & 7;
switch(op) {
case 0: /* prefetchnta */
case 1: /* prefetchnt0 */
case 2: /* prefetchnt0 */
case 3: /* prefetchnt0 */
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
/* nothing more to do */
break;
default: /* nop (multi byte) */
gen_nop_modrm(env, s, modrm);
break;
}
break;
case 0x119 ... 0x11f: /* nop (multi byte) */
modrm = cpu_ldub_code(env, s->pc++);
gen_nop_modrm(env, s, modrm);
break;
case 0x120: /* mov reg, crN */
case 0x122: /* mov crN, reg */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
modrm = cpu_ldub_code(env, s->pc++);
/* Ignore the mod bits (assume (modrm&0xc0)==0xc0).
* AMD documentation (24594.pdf) and testing of
* intel 386 and 486 processors all show that the mod bits
* are assumed to be 1's, regardless of actual values.
*/
rm = (modrm & 7) | REX_B(s);
reg = ((modrm >> 3) & 7) | rex_r;
if (CODE64(s))
ot = MO_64;
else
ot = MO_32;
if ((prefixes & PREFIX_LOCK) && (reg == 0) &&
(s->cpuid_ext3_features & CPUID_EXT3_CR8LEG)) {
reg = 8;
}
switch(reg) {
case 0:
case 2:
case 3:
case 4:
case 8:
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
if (b & 2) {
gen_op_mov_v_reg(ot, cpu_T[0], rm);
gen_helper_write_crN(cpu_env, tcg_const_i32(reg),
cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
gen_helper_read_crN(cpu_T[0], cpu_env, tcg_const_i32(reg));
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
}
break;
default:
goto illegal_op;
}
}
break;
case 0x121: /* mov reg, drN */
case 0x123: /* mov drN, reg */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
modrm = cpu_ldub_code(env, s->pc++);
/* Ignore the mod bits (assume (modrm&0xc0)==0xc0).
* AMD documentation (24594.pdf) and testing of
* intel 386 and 486 processors all show that the mod bits
* are assumed to be 1's, regardless of actual values.
*/
rm = (modrm & 7) | REX_B(s);
reg = ((modrm >> 3) & 7) | rex_r;
if (CODE64(s))
ot = MO_64;
else
ot = MO_32;
/* XXX: do it dynamically with CR4.DE bit */
if (reg == 4 || reg == 5 || reg >= 8)
goto illegal_op;
if (b & 2) {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_DR0 + reg);
gen_op_mov_v_reg(ot, cpu_T[0], rm);
gen_helper_movl_drN_T0(cpu_env, tcg_const_i32(reg), cpu_T[0]);
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_READ_DR0 + reg);
tcg_gen_ld_tl(cpu_T[0], cpu_env, offsetof(CPUX86State,dr[reg]));
gen_op_mov_reg_v(ot, rm, cpu_T[0]);
}
}
break;
case 0x106: /* clts */
if (s->cpl != 0) {
gen_exception(s, EXCP0D_GPF, pc_start - s->cs_base);
} else {
gen_svm_check_intercept(s, pc_start, SVM_EXIT_WRITE_CR0);
gen_helper_clts(cpu_env);
/* abort block because static cpu state changed */
gen_jmp_im(s->pc - s->cs_base);
gen_eob(s);
}
break;
/* MMX/3DNow!/SSE/SSE2/SSE3/SSSE3/SSE4 support */
case 0x1c3: /* MOVNTI reg, mem */
if (!(s->cpuid_features & CPUID_SSE2))
goto illegal_op;
ot = mo_64_32(dflag);
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
if (mod == 3)
goto illegal_op;
reg = ((modrm >> 3) & 7) | rex_r;
/* generate a generic store */
gen_ldst_modrm(env, s, modrm, ot, reg, 1);
break;
case 0x1ae:
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
op = (modrm >> 3) & 7;
switch(op) {
case 0: /* fxsave */
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) ||
(s->prefix & PREFIX_LOCK))
goto illegal_op;
if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
gen_lea_modrm(env, s, modrm);
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fxsave(cpu_env, cpu_A0, tcg_const_i32(dflag == MO_64));
break;
case 1: /* fxrstor */
if (mod == 3 || !(s->cpuid_features & CPUID_FXSR) ||
(s->prefix & PREFIX_LOCK))
goto illegal_op;
if ((s->flags & HF_EM_MASK) || (s->flags & HF_TS_MASK)) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
gen_lea_modrm(env, s, modrm);
gen_update_cc_op(s);
gen_jmp_im(pc_start - s->cs_base);
gen_helper_fxrstor(cpu_env, cpu_A0, tcg_const_i32(dflag == MO_64));
break;
case 2: /* ldmxcsr */
case 3: /* stmxcsr */
if (s->flags & HF_TS_MASK) {
gen_exception(s, EXCP07_PREX, pc_start - s->cs_base);
break;
}
if ((s->flags & HF_EM_MASK) || !(s->flags & HF_OSFXSR_MASK) ||
mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
if (op == 2) {
tcg_gen_qemu_ld_i32(cpu_tmp2_i32, cpu_A0,
s->mem_index, MO_LEUL);
gen_helper_ldmxcsr(cpu_env, cpu_tmp2_i32);
} else {
tcg_gen_ld32u_tl(cpu_T[0], cpu_env, offsetof(CPUX86State, mxcsr));
gen_op_st_v(s, MO_32, cpu_T[0], cpu_A0);
}
break;
case 5: /* lfence */
case 6: /* mfence */
if ((modrm & 0xc7) != 0xc0 || !(s->cpuid_features & CPUID_SSE2))
goto illegal_op;
break;
case 7: /* sfence / clflush */
if ((modrm & 0xc7) == 0xc0) {
/* sfence */
/* XXX: also check for cpuid_ext2_features & CPUID_EXT2_EMMX */
if (!(s->cpuid_features & CPUID_SSE))
goto illegal_op;
} else {
/* clflush */
if (!(s->cpuid_features & CPUID_CLFLUSH))
goto illegal_op;
gen_lea_modrm(env, s, modrm);
}
break;
default:
goto illegal_op;
}
break;
case 0x10d: /* 3DNow! prefetch(w) */
modrm = cpu_ldub_code(env, s->pc++);
mod = (modrm >> 6) & 3;
if (mod == 3)
goto illegal_op;
gen_lea_modrm(env, s, modrm);
/* ignore for now */
break;
case 0x1aa: /* rsm */
gen_svm_check_intercept(s, pc_start, SVM_EXIT_RSM);
if (!(s->flags & HF_SMM_MASK))
goto illegal_op;
gen_update_cc_op(s);
gen_jmp_im(s->pc - s->cs_base);
gen_helper_rsm(cpu_env);
gen_eob(s);
break;
case 0x1b8: /* SSE4.2 popcnt */
if ((prefixes & (PREFIX_REPZ | PREFIX_LOCK | PREFIX_REPNZ)) !=
PREFIX_REPZ)
goto illegal_op;
if (!(s->cpuid_ext_features & CPUID_EXT_POPCNT))
goto illegal_op;
modrm = cpu_ldub_code(env, s->pc++);
reg = ((modrm >> 3) & 7) | rex_r;
if (s->prefix & PREFIX_DATA) {
ot = MO_16;
} else {
ot = mo_64_32(dflag);
}
gen_ldst_modrm(env, s, modrm, ot, OR_TMP0, 0);
gen_helper_popcnt(cpu_T[0], cpu_env, cpu_T[0], tcg_const_i32(ot));
gen_op_mov_reg_v(ot, reg, cpu_T[0]);
set_cc_op(s, CC_OP_EFLAGS);
break;
case 0x10e ... 0x10f:
/* 3DNow! instructions, ignore prefixes */
s->prefix &= ~(PREFIX_REPZ | PREFIX_REPNZ | PREFIX_DATA);
case 0x110 ... 0x117:
case 0x128 ... 0x12f:
case 0x138 ... 0x13a:
case 0x150 ... 0x179:
case 0x17c ... 0x17f:
case 0x1c2:
case 0x1c4 ... 0x1c6:
case 0x1d0 ... 0x1fe:
gen_sse(env, s, b, pc_start, rex_r);
break;
default:
goto illegal_op;
}
/* lock generation */
if (s->prefix & PREFIX_LOCK)
gen_helper_unlock();
return s->pc;
illegal_op:
if (s->prefix & PREFIX_LOCK)
gen_helper_unlock();
/* XXX: ensure that no lock was generated */
gen_exception(s, EXCP06_ILLOP, pc_start - s->cs_base);
return s->pc;
}
void optimize_flags_init(void)
{
static const char reg_names[CPU_NB_REGS][4] = {
#ifdef TARGET_X86_64
[R_EAX] = "rax",
[R_EBX] = "rbx",
[R_ECX] = "rcx",
[R_EDX] = "rdx",
[R_ESI] = "rsi",
[R_EDI] = "rdi",
[R_EBP] = "rbp",
[R_ESP] = "rsp",
[8] = "r8",
[9] = "r9",
[10] = "r10",
[11] = "r11",
[12] = "r12",
[13] = "r13",
[14] = "r14",
[15] = "r15",
#else
[R_EAX] = "eax",
[R_EBX] = "ebx",
[R_ECX] = "ecx",
[R_EDX] = "edx",
[R_ESI] = "esi",
[R_EDI] = "edi",
[R_EBP] = "ebp",
[R_ESP] = "esp",
#endif
};
int i;
cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
cpu_cc_op = tcg_global_mem_new_i32(TCG_AREG0,
offsetof(CPUX86State, cc_op), "cc_op");
cpu_cc_dst = tcg_global_mem_new(TCG_AREG0, offsetof(CPUX86State, cc_dst),
"cc_dst");
cpu_cc_src = tcg_global_mem_new(TCG_AREG0, offsetof(CPUX86State, cc_src),
"cc_src");
cpu_cc_src2 = tcg_global_mem_new(TCG_AREG0, offsetof(CPUX86State, cc_src2),
"cc_src2");
for (i = 0; i < CPU_NB_REGS; ++i) {
cpu_regs[i] = tcg_global_mem_new(TCG_AREG0,
offsetof(CPUX86State, regs[i]),
reg_names[i]);
}
}
/* generate intermediate code in gen_opc_buf and gen_opparam_buf for
basic block 'tb'. If search_pc is TRUE, also generate PC
information for each intermediate instruction. */
static inline void gen_intermediate_code_internal(X86CPU *cpu,
TranslationBlock *tb,
bool search_pc)
{
CPUState *cs = CPU(cpu);
CPUX86State *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
target_ulong pc_ptr;
uint16_t *gen_opc_end;
CPUBreakpoint *bp;
int j, lj;
uint64_t flags;
target_ulong pc_start;
target_ulong cs_base;
int num_insns;
int max_insns;
/* generate intermediate code */
pc_start = tb->pc;
cs_base = tb->cs_base;
flags = tb->flags;
dc->pe = (flags >> HF_PE_SHIFT) & 1;
dc->code32 = (flags >> HF_CS32_SHIFT) & 1;
dc->ss32 = (flags >> HF_SS32_SHIFT) & 1;
dc->addseg = (flags >> HF_ADDSEG_SHIFT) & 1;
dc->f_st = 0;
dc->vm86 = (flags >> VM_SHIFT) & 1;
dc->cpl = (flags >> HF_CPL_SHIFT) & 3;
dc->iopl = (flags >> IOPL_SHIFT) & 3;
dc->tf = (flags >> TF_SHIFT) & 1;
dc->singlestep_enabled = cs->singlestep_enabled;
dc->cc_op = CC_OP_DYNAMIC;
dc->cc_op_dirty = false;
dc->cs_base = cs_base;
dc->tb = tb;
dc->popl_esp_hack = 0;
/* select memory access functions */
dc->mem_index = 0;
if (flags & HF_SOFTMMU_MASK) {
dc->mem_index = cpu_mmu_index(env);
}
dc->cpuid_features = env->features[FEAT_1_EDX];
dc->cpuid_ext_features = env->features[FEAT_1_ECX];
dc->cpuid_ext2_features = env->features[FEAT_8000_0001_EDX];
dc->cpuid_ext3_features = env->features[FEAT_8000_0001_ECX];
dc->cpuid_7_0_ebx_features = env->features[FEAT_7_0_EBX];
#ifdef TARGET_X86_64
dc->lma = (flags >> HF_LMA_SHIFT) & 1;
dc->code64 = (flags >> HF_CS64_SHIFT) & 1;
#endif
dc->flags = flags;
dc->jmp_opt = !(dc->tf || cs->singlestep_enabled ||
(flags & HF_INHIBIT_IRQ_MASK)
#ifndef CONFIG_SOFTMMU
|| (flags & HF_SOFTMMU_MASK)
#endif
);
#if 0
/* check addseg logic */
if (!dc->addseg && (dc->vm86 || !dc->pe || !dc->code32))
printf("ERROR addseg\n");
#endif
cpu_T[0] = tcg_temp_new();
cpu_T[1] = tcg_temp_new();
cpu_A0 = tcg_temp_new();
cpu_tmp0 = tcg_temp_new();
cpu_tmp1_i64 = tcg_temp_new_i64();
cpu_tmp2_i32 = tcg_temp_new_i32();
cpu_tmp3_i32 = tcg_temp_new_i32();
cpu_tmp4 = tcg_temp_new();
cpu_ptr0 = tcg_temp_new_ptr();
cpu_ptr1 = tcg_temp_new_ptr();
cpu_cc_srcT = tcg_temp_local_new();
gen_opc_end = tcg_ctx.gen_opc_buf + OPC_MAX_SIZE;
dc->is_jmp = DISAS_NEXT;
pc_ptr = pc_start;
lj = -1;
num_insns = 0;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
gen_tb_start();
for(;;) {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == pc_ptr &&
!((bp->flags & BP_CPU) && (tb->flags & HF_RF_MASK))) {
gen_debug(dc, pc_ptr - dc->cs_base);
break;
}
}
}
if (search_pc) {
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
if (lj < j) {
lj++;
while (lj < j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
tcg_ctx.gen_opc_pc[lj] = pc_ptr;
gen_opc_cc_op[lj] = dc->cc_op;
tcg_ctx.gen_opc_instr_start[lj] = 1;
tcg_ctx.gen_opc_icount[lj] = num_insns;
}
if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO))
gen_io_start();
pc_ptr = disas_insn(env, dc, pc_ptr);
num_insns++;
/* stop translation if indicated */
if (dc->is_jmp)
break;
/* if single step mode, we generate only one instruction and
generate an exception */
/* if irq were inhibited with HF_INHIBIT_IRQ_MASK, we clear
the flag and abort the translation to give the irqs a
change to be happen */
if (dc->tf || dc->singlestep_enabled ||
(flags & HF_INHIBIT_IRQ_MASK)) {
gen_jmp_im(pc_ptr - dc->cs_base);
gen_eob(dc);
break;
}
/* if too long translation, stop generation too */
if (tcg_ctx.gen_opc_ptr >= gen_opc_end ||
(pc_ptr - pc_start) >= (TARGET_PAGE_SIZE - 32) ||
num_insns >= max_insns) {
gen_jmp_im(pc_ptr - dc->cs_base);
gen_eob(dc);
break;
}
if (singlestep) {
gen_jmp_im(pc_ptr - dc->cs_base);
gen_eob(dc);
break;
}
}
if (tb->cflags & CF_LAST_IO)
gen_io_end();
gen_tb_end(tb, num_insns);
*tcg_ctx.gen_opc_ptr = INDEX_op_end;
/* we don't forget to fill the last values */
if (search_pc) {
j = tcg_ctx.gen_opc_ptr - tcg_ctx.gen_opc_buf;
lj++;
while (lj <= j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
#ifdef DEBUG_DISAS
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
int disas_flags;
qemu_log("----------------\n");
qemu_log("IN: %s\n", lookup_symbol(pc_start));
#ifdef TARGET_X86_64
if (dc->code64)
disas_flags = 2;
else
#endif
disas_flags = !dc->code32;
log_target_disas(env, pc_start, pc_ptr - pc_start, disas_flags);
qemu_log("\n");
}
#endif
if (!search_pc) {
tb->size = pc_ptr - pc_start;
tb->icount = num_insns;
}
}
void gen_intermediate_code(CPUX86State *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(x86_env_get_cpu(env), tb, false);
}
void gen_intermediate_code_pc(CPUX86State *env, TranslationBlock *tb)
{
gen_intermediate_code_internal(x86_env_get_cpu(env), tb, true);
}
void restore_state_to_opc(CPUX86State *env, TranslationBlock *tb, int pc_pos)
{
int cc_op;
#ifdef DEBUG_DISAS
if (qemu_loglevel_mask(CPU_LOG_TB_OP)) {
int i;
qemu_log("RESTORE:\n");
for(i = 0;i <= pc_pos; i++) {
if (tcg_ctx.gen_opc_instr_start[i]) {
qemu_log("0x%04x: " TARGET_FMT_lx "\n", i,
tcg_ctx.gen_opc_pc[i]);
}
}
qemu_log("pc_pos=0x%x eip=" TARGET_FMT_lx " cs_base=%x\n",
pc_pos, tcg_ctx.gen_opc_pc[pc_pos] - tb->cs_base,
(uint32_t)tb->cs_base);
}
#endif
env->eip = tcg_ctx.gen_opc_pc[pc_pos] - tb->cs_base;
cc_op = gen_opc_cc_op[pc_pos];
if (cc_op != CC_OP_DYNAMIC)
env->cc_op = cc_op;
}