提交 8e1c85e3 编写于 作者: B bellard

converted conditional jumps, SET and CMOVx to TCG

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4518 c046a42c-6fe2-441c-8c8c-71466251a162
上级 5ecae2ba
/*
* i386 micro operations
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define ASM_SOFTMMU
#include "exec.h"
/* we define the various pieces of code used by the JIT */
#define REG EAX
#define REGNAME _EAX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ECX
#define REGNAME _ECX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EDX
#define REGNAME _EDX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EBX
#define REGNAME _EBX
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ESP
#define REGNAME _ESP
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EBP
#define REGNAME _EBP
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG ESI
#define REGNAME _ESI
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG EDI
#define REGNAME _EDI
#include "opreg_template.h"
#undef REG
#undef REGNAME
#ifdef TARGET_X86_64
#define REG (env->regs[8])
#define REGNAME _R8
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[9])
#define REGNAME _R9
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[10])
#define REGNAME _R10
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[11])
#define REGNAME _R11
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[12])
#define REGNAME _R12
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[13])
#define REGNAME _R13
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[14])
#define REGNAME _R14
#include "opreg_template.h"
#undef REG
#undef REGNAME
#define REG (env->regs[15])
#define REGNAME _R15
#include "opreg_template.h"
#undef REG
#undef REGNAME
#endif
/* multiple size ops */
#define ldul ldl
#define SHIFT 0
#include "ops_template.h"
#undef SHIFT
#define SHIFT 1
#include "ops_template.h"
#undef SHIFT
#define SHIFT 2
#include "ops_template.h"
#undef SHIFT
#ifdef TARGET_X86_64
#define SHIFT 3
#include "ops_template.h"
#undef SHIFT
#endif
/* flags handling */
void OPPROTO op_jmp_label(void)
{
GOTO_LABEL_PARAM(1);
}
void OPPROTO op_jnz_T0_label(void)
{
if (T0)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
/* slow set cases (compute x86 flags) */
void OPPROTO op_seto_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 11) & 1;
}
void OPPROTO op_setb_T0_cc(void)
{
T0 = cc_table[CC_OP].compute_c();
}
void OPPROTO op_setz_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 6) & 1;
}
void OPPROTO op_setbe_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags & (CC_Z | CC_C)) != 0;
}
void OPPROTO op_sets_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 7) & 1;
}
void OPPROTO op_setp_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (eflags >> 2) & 1;
}
void OPPROTO op_setl_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = ((eflags ^ (eflags >> 4)) >> 7) & 1;
}
void OPPROTO op_setle_T0_cc(void)
{
int eflags;
eflags = cc_table[CC_OP].compute_all();
T0 = (((eflags ^ (eflags >> 4)) & 0x80) || (eflags & CC_Z)) != 0;
}
void OPPROTO op_xor_T0_1(void)
{
T0 ^= 1;
}
/*
* i386 micro operations (templates for various register related
* operations)
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* mov T1 to REG if T0 is true */
void OPPROTO glue(glue(op_cmovw,REGNAME),_T1_T0)(void)
{
if (T0)
REG = (REG & ~0xffff) | (T1 & 0xffff);
FORCE_RET();
}
void OPPROTO glue(glue(op_cmovl,REGNAME),_T1_T0)(void)
{
#ifdef TARGET_X86_64
if (T0)
REG = (uint32_t)T1;
else
REG = (uint32_t)REG;
#else
if (T0)
REG = (uint32_t)T1;
#endif
FORCE_RET();
}
#ifdef TARGET_X86_64
void OPPROTO glue(glue(op_cmovq,REGNAME),_T1_T0)(void)
{
if (T0)
REG = T1;
FORCE_RET();
}
#endif
/*
* i386 micro operations (included several times to generate
* different operand sizes)
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#define DATA_BITS (1 << (3 + SHIFT))
#define SHIFT_MASK (DATA_BITS - 1)
#define SIGN_MASK (((target_ulong)1) << (DATA_BITS - 1))
#if DATA_BITS <= 32
#define SHIFT1_MASK 0x1f
#else
#define SHIFT1_MASK 0x3f
#endif
#if DATA_BITS == 8
#define SUFFIX b
#define DATA_TYPE uint8_t
#define DATA_STYPE int8_t
#define DATA_MASK 0xff
#elif DATA_BITS == 16
#define SUFFIX w
#define DATA_TYPE uint16_t
#define DATA_STYPE int16_t
#define DATA_MASK 0xffff
#elif DATA_BITS == 32
#define SUFFIX l
#define DATA_TYPE uint32_t
#define DATA_STYPE int32_t
#define DATA_MASK 0xffffffff
#elif DATA_BITS == 64
#define SUFFIX q
#define DATA_TYPE uint64_t
#define DATA_STYPE int64_t
#define DATA_MASK 0xffffffffffffffffULL
#else
#error unhandled operand size
#endif
/* various optimized jumps cases */
void OPPROTO glue(op_jb_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
if ((DATA_TYPE)src1 < (DATA_TYPE)src2)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_jz_sub, SUFFIX)(void)
{
if ((DATA_TYPE)CC_DST == 0)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_jnz_sub, SUFFIX)(void)
{
if ((DATA_TYPE)CC_DST != 0)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_jbe_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
if ((DATA_TYPE)src1 <= (DATA_TYPE)src2)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_js_sub, SUFFIX)(void)
{
if (CC_DST & SIGN_MASK)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_jl_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
if ((DATA_STYPE)src1 < (DATA_STYPE)src2)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
void OPPROTO glue(op_jle_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
if ((DATA_STYPE)src1 <= (DATA_STYPE)src2)
GOTO_LABEL_PARAM(1);
FORCE_RET();
}
/* various optimized set cases */
void OPPROTO glue(op_setb_T0_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
T0 = ((DATA_TYPE)src1 < (DATA_TYPE)src2);
}
void OPPROTO glue(op_setz_T0_sub, SUFFIX)(void)
{
T0 = ((DATA_TYPE)CC_DST == 0);
}
void OPPROTO glue(op_setbe_T0_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
T0 = ((DATA_TYPE)src1 <= (DATA_TYPE)src2);
}
void OPPROTO glue(op_sets_T0_sub, SUFFIX)(void)
{
T0 = lshift(CC_DST, -(DATA_BITS - 1)) & 1;
}
void OPPROTO glue(op_setl_T0_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
T0 = ((DATA_STYPE)src1 < (DATA_STYPE)src2);
}
void OPPROTO glue(op_setle_T0_sub, SUFFIX)(void)
{
target_long src1, src2;
src1 = CC_DST + CC_SRC;
src2 = CC_SRC;
T0 = ((DATA_STYPE)src1 <= (DATA_STYPE)src2);
}
#undef DATA_BITS
#undef SHIFT_MASK
#undef SHIFT1_MASK
#undef SIGN_MASK
#undef DATA_TYPE
#undef DATA_STYPE
#undef DATA_MASK
#undef SUFFIX
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