uae_cpu/compiler/codegen_x86.cpp

/*
 *  compiler/codegen_x86.cpp - IA-32 code generator
 *
 *  Original 68040 JIT compiler for UAE, copyright 2000-2002 Bernd Meyer
 *
 *  Adaptation for Basilisk II and improvements, copyright 2000-2002
 *    Gwenole Beauchesne
 *
 *  Basilisk II (C) 1997-2002 Christian Bauer
 *
 *  Portions related to CPU detection come from linux/arch/i386/kernel/setup.c
 *  
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

/* This should eventually end up in machdep/, but for now, x86 is the
   only target, and it's easier this way... */

#include "flags_x86.h"

/*************************************************************************
 * Some basic information about the the target CPU                       *
 *************************************************************************/

#define EAX_INDEX 0
#define ECX_INDEX 1
#define EDX_INDEX 2
#define EBX_INDEX 3
#define ESP_INDEX 4
#define EBP_INDEX 5
#define ESI_INDEX 6
#define EDI_INDEX 7

/* The register in which subroutines return an integer return value */
#define REG_RESULT 0

/* The registers subroutines take their first and second argument in */
#if defined( _MSC_VER ) && !defined( USE_NORMAL_CALLING_CONVENTION )
/* Handle the _fastcall parameters of ECX and EDX */
#define REG_PAR1 1
#define REG_PAR2 2
#else
#define REG_PAR1 0
#define REG_PAR2 2
#endif

/* Three registers that are not used for any of the above */
#define REG_NOPAR1 6
#define REG_NOPAR2 5
#define REG_NOPAR3 3

#define REG_PC_PRE 0 /* The register we use for preloading regs.pc_p */
#if defined( _MSC_VER ) && !defined( USE_NORMAL_CALLING_CONVENTION )
#define REG_PC_TMP 0
#else
#define REG_PC_TMP 1 /* Another register that is not the above */
#endif

#define SHIFTCOUNT_NREG 1  /* Register that can be used for shiftcount.
                              -1 if any reg will do */
#define MUL_NREG1 0 /* %eax will hold the low 32 bits after a 32x32 mul */
#define MUL_NREG2 2 /* %edx will hold the high 32 bits */

uae_s8 always_used[]={4,-1};
uae_s8 can_byte[]={0,1,2,3,-1};
uae_s8 can_word[]={0,1,2,3,5,6,7,-1};

/* cpuopti mutate instruction handlers to assume registers are saved
   by the caller */
uae_u8 call_saved[]={0,0,0,0,1,0,0,0};

/* This *should* be the same as call_saved. But:
   - We might not really know which registers are saved, and which aren't,
     so we need to preserve some, but don't want to rely on everyone else
     also saving those registers
   - Special registers (such like the stack pointer) should not be "preserved"
     by pushing, even though they are "saved" across function calls
*/
uae_u8 need_to_preserve[]={1,1,1,1,0,1,1,1};

/* Whether classes of instructions do or don't clobber the native flags */
#define CLOBBER_MOV
#define CLOBBER_LEA
#define CLOBBER_CMOV
#define CLOBBER_POP
#define CLOBBER_PUSH
#define CLOBBER_SUB  clobber_flags()
#define CLOBBER_SBB  clobber_flags()
#define CLOBBER_CMP  clobber_flags()
#define CLOBBER_ADD  clobber_flags()
#define CLOBBER_ADC  clobber_flags()
#define CLOBBER_AND  clobber_flags()
#define CLOBBER_OR   clobber_flags()
#define CLOBBER_XOR  clobber_flags()

#define CLOBBER_ROL  clobber_flags()
#define CLOBBER_ROR  clobber_flags()
#define CLOBBER_SHLL clobber_flags()
#define CLOBBER_SHRL clobber_flags()
#define CLOBBER_SHRA clobber_flags()
#define CLOBBER_TEST clobber_flags()
#define CLOBBER_CL16 
#define CLOBBER_CL8  
#define CLOBBER_SE16
#define CLOBBER_SE8
#define CLOBBER_ZE16
#define CLOBBER_ZE8
#define CLOBBER_SW16 clobber_flags()
#define CLOBBER_SW32
#define CLOBBER_SETCC
#define CLOBBER_MUL  clobber_flags()
#define CLOBBER_BT   clobber_flags()
#define CLOBBER_BSF  clobber_flags()

const bool optimize_accum               = true;
const bool optimize_imm8                = true;
const bool optimize_shift_once  = true;

/*************************************************************************
 * Actual encoding of the instructions on the target CPU                 *
 *************************************************************************/

static __inline__ int isaccum(int r)
{
        return (r == EAX_INDEX);
}

static __inline__ int isbyte(uae_s32 x)
{
        return (x>=-128 && x<=127);
}

static __inline__ int isword(uae_s32 x)
{
        return (x>=-32768 && x<=32767);
}

LOWFUNC(NONE,WRITE,1,raw_push_l_r,(R4 r))
{
        emit_byte(0x50+r);
}
LENDFUNC(NONE,WRITE,1,raw_push_l_r,(R4 r))

LOWFUNC(NONE,READ,1,raw_pop_l_r,(R4 r))
{
        emit_byte(0x58+r);
}
LENDFUNC(NONE,READ,1,raw_pop_l_r,(R4 r))

LOWFUNC(WRITE,NONE,2,raw_bt_l_ri,(R4 r, IMM i))
{
        emit_byte(0x0f);
        emit_byte(0xba);
        emit_byte(0xe0+r);
        emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_bt_l_ri,(R4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_bt_l_rr,(R4 r, R4 b))
{
        emit_byte(0x0f);
        emit_byte(0xa3);
        emit_byte(0xc0+8*b+r);
}
LENDFUNC(WRITE,NONE,2,raw_bt_l_rr,(R4 r, R4 b))

LOWFUNC(WRITE,NONE,2,raw_btc_l_ri,(RW4 r, IMM i))
{
        emit_byte(0x0f);
        emit_byte(0xba);
        emit_byte(0xf8+r);
        emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_btc_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_btc_l_rr,(RW4 r, R4 b))
{
        emit_byte(0x0f);
        emit_byte(0xbb);
        emit_byte(0xc0+8*b+r);
}
LENDFUNC(WRITE,NONE,2,raw_btc_l_rr,(RW4 r, R4 b))


LOWFUNC(WRITE,NONE,2,raw_btr_l_ri,(RW4 r, IMM i))
{
        emit_byte(0x0f);
        emit_byte(0xba);
        emit_byte(0xf0+r);
        emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_btr_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_btr_l_rr,(RW4 r, R4 b))
{
        emit_byte(0x0f);
        emit_byte(0xb3);
        emit_byte(0xc0+8*b+r);
}
LENDFUNC(WRITE,NONE,2,raw_btr_l_rr,(RW4 r, R4 b))

LOWFUNC(WRITE,NONE,2,raw_bts_l_ri,(RW4 r, IMM i))
{
        emit_byte(0x0f);
        emit_byte(0xba);
        emit_byte(0xe8+r);
        emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_bts_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_bts_l_rr,(RW4 r, R4 b))
{
        emit_byte(0x0f);
        emit_byte(0xab);
        emit_byte(0xc0+8*b+r);
}
LENDFUNC(WRITE,NONE,2,raw_bts_l_rr,(RW4 r, R4 b))

LOWFUNC(WRITE,NONE,2,raw_sub_w_ri,(RW2 d, IMM i))
{
    emit_byte(0x66);
    if (isbyte(i)) {
        emit_byte(0x83);
        emit_byte(0xe8+d);
        emit_byte(i);
    }
    else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x2d);
        else {
        emit_byte(0x81);
        emit_byte(0xe8+d);
        }
        emit_word(i);
    }
}
LENDFUNC(WRITE,NONE,2,raw_sub_w_ri,(RW2 d, IMM i))


LOWFUNC(NONE,READ,2,raw_mov_l_rm,(W4 d, MEMR s))
{
    emit_byte(0x8b);
    emit_byte(0x05+8*d);
    emit_long(s);
}
LENDFUNC(NONE,READ,2,raw_mov_l_rm,(W4 d, MEMR s))

LOWFUNC(NONE,WRITE,2,raw_mov_l_mi,(MEMW d, IMM s))
{
    emit_byte(0xc7);
    emit_byte(0x05);
    emit_long(d);
    emit_long(s);
}
LENDFUNC(NONE,WRITE,2,raw_mov_l_mi,(MEMW d, IMM s))

LOWFUNC(NONE,WRITE,2,raw_mov_w_mi,(MEMW d, IMM s))
{
    emit_byte(0x66);
    emit_byte(0xc7);
    emit_byte(0x05);
    emit_long(d);
    emit_word(s);
}
LENDFUNC(NONE,WRITE,2,raw_mov_w_mi,(MEMW d, IMM s))

LOWFUNC(NONE,WRITE,2,raw_mov_b_mi,(MEMW d, IMM s))
{
    emit_byte(0xc6);
    emit_byte(0x05);
    emit_long(d);
    emit_byte(s);
}
LENDFUNC(NONE,WRITE,2,raw_mov_b_mi,(MEMW d, IMM s))

LOWFUNC(WRITE,RMW,2,raw_rol_b_mi,(MEMRW d, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
        emit_byte(0xd0);
        emit_byte(0x05);
        emit_long(d);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0x05);
    emit_long(d);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,RMW,2,raw_rol_b_mi,(MEMRW d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_rol_b_ri,(RW1 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd0);
    emit_byte(0xc0+r);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0xc0+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_rol_b_ri,(RW1 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_rol_w_ri,(RW2 r, IMM i))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xc0+r);
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_rol_w_ri,(RW2 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_rol_l_ri,(RW4 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd1);
    emit_byte(0xc0+r);
        }
        else {
    emit_byte(0xc1);
    emit_byte(0xc0+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_rol_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_rol_l_rr,(RW4 d, R1 r))
{
    emit_byte(0xd3);
    emit_byte(0xc0+d);
}
LENDFUNC(WRITE,NONE,2,raw_rol_l_rr,(RW4 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_rol_w_rr,(RW2 d, R1 r))
{
    emit_byte(0x66);
    emit_byte(0xd3);
    emit_byte(0xc0+d);
}
LENDFUNC(WRITE,NONE,2,raw_rol_w_rr,(RW2 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_rol_b_rr,(RW1 d, R1 r))
{
    emit_byte(0xd2);
    emit_byte(0xc0+d);
}
LENDFUNC(WRITE,NONE,2,raw_rol_b_rr,(RW1 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shll_l_rr,(RW4 d, R1 r))
{
    emit_byte(0xd3);
    emit_byte(0xe0+d);
}
LENDFUNC(WRITE,NONE,2,raw_shll_l_rr,(RW4 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shll_w_rr,(RW2 d, R1 r))
{
    emit_byte(0x66);
    emit_byte(0xd3);
    emit_byte(0xe0+d);
}
LENDFUNC(WRITE,NONE,2,raw_shll_w_rr,(RW2 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shll_b_rr,(RW1 d, R1 r))
{
    emit_byte(0xd2);
    emit_byte(0xe0+d);
}
LENDFUNC(WRITE,NONE,2,raw_shll_b_rr,(RW1 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_ror_b_ri,(RW1 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd0);
    emit_byte(0xc8+r);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0xc8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_ror_b_ri,(RW1 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_ror_w_ri,(RW2 r, IMM i))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xc8+r);
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_ror_w_ri,(RW2 r, IMM i))

// gb-- used for making an fpcr value in compemu_fpp.cpp
LOWFUNC(WRITE,READ,2,raw_or_l_rm,(RW4 d, MEMR s))
{
    emit_byte(0x0b);
    emit_byte(0x05+8*d);
    emit_long(s);
}
LENDFUNC(WRITE,READ,2,raw_or_l_rm,(RW4 d, MEMR s))

LOWFUNC(WRITE,NONE,2,raw_ror_l_ri,(RW4 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd1);
    emit_byte(0xc8+r);
        }
        else {
    emit_byte(0xc1);
    emit_byte(0xc8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_ror_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_ror_l_rr,(RW4 d, R1 r))
{
    emit_byte(0xd3);
    emit_byte(0xc8+d);
}
LENDFUNC(WRITE,NONE,2,raw_ror_l_rr,(RW4 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_ror_w_rr,(RW2 d, R1 r))
{
    emit_byte(0x66);
    emit_byte(0xd3);
    emit_byte(0xc8+d);
}
LENDFUNC(WRITE,NONE,2,raw_ror_w_rr,(RW2 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_ror_b_rr,(RW1 d, R1 r))
{
    emit_byte(0xd2);
    emit_byte(0xc8+d);
}
LENDFUNC(WRITE,NONE,2,raw_ror_b_rr,(RW1 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shrl_l_rr,(RW4 d, R1 r))
{
    emit_byte(0xd3);
    emit_byte(0xe8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shrl_l_rr,(RW4 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shrl_w_rr,(RW2 d, R1 r))
{
    emit_byte(0x66);
    emit_byte(0xd3);
    emit_byte(0xe8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shrl_w_rr,(RW2 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shrl_b_rr,(RW1 d, R1 r))
{
    emit_byte(0xd2);
    emit_byte(0xe8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shrl_b_rr,(RW1 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shra_l_rr,(RW4 d, R1 r))
{
    emit_byte(0xd3);
    emit_byte(0xf8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shra_l_rr,(RW4 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shra_w_rr,(RW2 d, R1 r))
{
    emit_byte(0x66);
    emit_byte(0xd3);
    emit_byte(0xf8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shra_w_rr,(RW2 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shra_b_rr,(RW1 d, R1 r))
{
    emit_byte(0xd2);
    emit_byte(0xf8+d);
}
LENDFUNC(WRITE,NONE,2,raw_shra_b_rr,(RW1 d, R1 r))

LOWFUNC(WRITE,NONE,2,raw_shll_l_ri,(RW4 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd1);
    emit_byte(0xe0+r);
        }
        else {
    emit_byte(0xc1);
    emit_byte(0xe0+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shll_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shll_w_ri,(RW2 r, IMM i))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xe0+r);
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_shll_w_ri,(RW2 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shll_b_ri,(RW1 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd0);
    emit_byte(0xe0+r);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0xe0+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shll_b_ri,(RW1 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shrl_l_ri,(RW4 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd1);
    emit_byte(0xe8+r);
        }
        else {
    emit_byte(0xc1);
    emit_byte(0xe8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shrl_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shrl_w_ri,(RW2 r, IMM i))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xe8+r);
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_shrl_w_ri,(RW2 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shrl_b_ri,(RW1 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd0);
    emit_byte(0xe8+r);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0xe8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shrl_b_ri,(RW1 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shra_l_ri,(RW4 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd1);
    emit_byte(0xf8+r);
        }
        else {
    emit_byte(0xc1);
    emit_byte(0xf8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shra_l_ri,(RW4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shra_w_ri,(RW2 r, IMM i))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xf8+r);
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_shra_w_ri,(RW2 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_shra_b_ri,(RW1 r, IMM i))
{
        if (optimize_shift_once && (i == 1)) {
    emit_byte(0xd0);
    emit_byte(0xf8+r);
        }
        else {
    emit_byte(0xc0);
    emit_byte(0xf8+r);
    emit_byte(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_shra_b_ri,(RW1 r, IMM i))

LOWFUNC(WRITE,NONE,1,raw_sahf,(R2 dummy_ah))
{
    emit_byte(0x9e);
}
LENDFUNC(WRITE,NONE,1,raw_sahf,(R2 dummy_ah))

LOWFUNC(NONE,NONE,1,raw_cpuid,(R4 dummy_eax))
{
    emit_byte(0x0f);
    emit_byte(0xa2);
}
LENDFUNC(NONE,NONE,1,raw_cpuid,(R4 dummy_eax))

LOWFUNC(READ,NONE,1,raw_lahf,(W2 dummy_ah))
{
    emit_byte(0x9f);
}
LENDFUNC(READ,NONE,1,raw_lahf,(W2 dummy_ah))

LOWFUNC(READ,NONE,2,raw_setcc,(W1 d, IMM cc))
{
    emit_byte(0x0f);
    emit_byte(0x90+cc);
    emit_byte(0xc0+d);
}
LENDFUNC(READ,NONE,2,raw_setcc,(W1 d, IMM cc))

LOWFUNC(READ,WRITE,2,raw_setcc_m,(MEMW d, IMM cc))
{
    emit_byte(0x0f);
    emit_byte(0x90+cc);
    emit_byte(0x05);
    emit_long(d);
}
LENDFUNC(READ,WRITE,2,raw_setcc_m,(MEMW d, IMM cc))

LOWFUNC(READ,NONE,3,raw_cmov_l_rr,(RW4 d, R4 s, IMM cc))
{
    if (have_cmov) {
        emit_byte(0x0f);
        emit_byte(0x40+cc);
        emit_byte(0xc0+8*d+s);
    }
    else { /* replacement using branch and mov */
        int uncc=(cc^1);
        emit_byte(0x70+uncc); 
        emit_byte(2);  /* skip next 2 bytes if not cc=true */
        emit_byte(0x89);
        emit_byte(0xc0+8*s+d);
    }
}
LENDFUNC(READ,NONE,3,raw_cmov_l_rr,(RW4 d, R4 s, IMM cc))

LOWFUNC(WRITE,NONE,2,raw_bsf_l_rr,(W4 d, R4 s))
{
    emit_byte(0x0f);
    emit_byte(0xbc);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(WRITE,NONE,2,raw_bsf_l_rr,(W4 d, R4 s))

LOWFUNC(NONE,NONE,2,raw_sign_extend_16_rr,(W4 d, R2 s))
{
    emit_byte(0x0f);
    emit_byte(0xbf);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_sign_extend_16_rr,(W4 d, R2 s))

LOWFUNC(NONE,NONE,2,raw_sign_extend_8_rr,(W4 d, R1 s))
{
    emit_byte(0x0f);
    emit_byte(0xbe);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_sign_extend_8_rr,(W4 d, R1 s))

LOWFUNC(NONE,NONE,2,raw_zero_extend_16_rr,(W4 d, R2 s))
{
    emit_byte(0x0f);
    emit_byte(0xb7);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_zero_extend_16_rr,(W4 d, R2 s))

LOWFUNC(NONE,NONE,2,raw_zero_extend_8_rr,(W4 d, R1 s))
{
    emit_byte(0x0f);
    emit_byte(0xb6);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_zero_extend_8_rr,(W4 d, R1 s))

LOWFUNC(NONE,NONE,2,raw_imul_32_32,(RW4 d, R4 s))
{
    emit_byte(0x0f);
    emit_byte(0xaf);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_imul_32_32,(RW4 d, R4 s))

LOWFUNC(NONE,NONE,2,raw_imul_64_32,(RW4 d, RW4 s))
{
    if (d!=MUL_NREG1 || s!=MUL_NREG2)
        abort();
    emit_byte(0xf7);
    emit_byte(0xea);
}
LENDFUNC(NONE,NONE,2,raw_imul_64_32,(RW4 d, RW4 s))

LOWFUNC(NONE,NONE,2,raw_mul_64_32,(RW4 d, RW4 s))
{
    if (d!=MUL_NREG1 || s!=MUL_NREG2) {
        printf("Bad register in MUL: d=%d, s=%d\n",d,s);
        abort();
    }
    emit_byte(0xf7);
    emit_byte(0xe2);
}
LENDFUNC(NONE,NONE,2,raw_mul_64_32,(RW4 d, RW4 s))

LOWFUNC(NONE,NONE,2,raw_mul_32_32,(RW4 d, R4 s))
{
    abort(); /* %^$&%^$%#^ x86! */
    emit_byte(0x0f);
    emit_byte(0xaf);
    emit_byte(0xc0+8*d+s);
}
LENDFUNC(NONE,NONE,2,raw_mul_32_32,(RW4 d, R4 s))

LOWFUNC(NONE,NONE,2,raw_mov_b_rr,(W1 d, R1 s))
{
    emit_byte(0x88);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(NONE,NONE,2,raw_mov_b_rr,(W1 d, R1 s))

LOWFUNC(NONE,NONE,2,raw_mov_w_rr,(W2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(NONE,NONE,2,raw_mov_w_rr,(W2 d, R2 s))

LOWFUNC(NONE,READ,4,raw_mov_l_rrm_indexed,(W4 d,R4 baser, R4 index, IMM factor))
{
    int isebp=(baser==5)?0x40:0;
    int fi;
    
    switch(factor) {
     case 1: fi=0; break;
     case 2: fi=1; break;
     case 4: fi=2; break;
     case 8: fi=3; break;
     default: abort();
    }


    emit_byte(0x8b);
    emit_byte(0x04+8*d+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,READ,4,raw_mov_l_rrm_indexed,(W4 d,R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,READ,4,raw_mov_w_rrm_indexed,(W2 d, R4 baser, R4 index, IMM factor))
{
    int fi;
    int isebp;
    
    switch(factor) {
     case 1: fi=0; break;
     case 2: fi=1; break;
     case 4: fi=2; break;
     case 8: fi=3; break;
     default: abort();
    }
    isebp=(baser==5)?0x40:0;
    
    emit_byte(0x66);
    emit_byte(0x8b);
    emit_byte(0x04+8*d+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,READ,4,raw_mov_w_rrm_indexed,(W2 d, R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,READ,4,raw_mov_b_rrm_indexed,(W1 d, R4 baser, R4 index, IMM factor))
{
   int fi;
  int isebp;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }
  isebp=(baser==5)?0x40:0;

   emit_byte(0x8a);
    emit_byte(0x04+8*d+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,READ,4,raw_mov_b_rrm_indexed,(W1 d, R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,WRITE,4,raw_mov_l_mrr_indexed,(R4 baser, R4 index, IMM factor, R4 s))
{
  int fi;
  int isebp;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

  
  isebp=(baser==5)?0x40:0;

    emit_byte(0x89);
    emit_byte(0x04+8*s+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,WRITE,4,raw_mov_l_mrr_indexed,(R4 baser, R4 index, IMM factor, R4 s))

LOWFUNC(NONE,WRITE,4,raw_mov_w_mrr_indexed,(R4 baser, R4 index, IMM factor, R2 s))
{
  int fi;
  int isebp;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }
  isebp=(baser==5)?0x40:0;

    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0x04+8*s+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,WRITE,4,raw_mov_w_mrr_indexed,(R4 baser, R4 index, IMM factor, R2 s))

LOWFUNC(NONE,WRITE,4,raw_mov_b_mrr_indexed,(R4 baser, R4 index, IMM factor, R1 s))
{
  int fi;
  int isebp;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }
  isebp=(baser==5)?0x40:0;

    emit_byte(0x88);
    emit_byte(0x04+8*s+isebp);
    emit_byte(baser+8*index+0x40*fi);
    if (isebp)
        emit_byte(0x00);
}
LENDFUNC(NONE,WRITE,4,raw_mov_b_mrr_indexed,(R4 baser, R4 index, IMM factor, R1 s))

LOWFUNC(NONE,WRITE,5,raw_mov_l_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R4 s))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x89);
    emit_byte(0x84+8*s);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,WRITE,5,raw_mov_l_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R4 s))

LOWFUNC(NONE,WRITE,5,raw_mov_w_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R2 s))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0x84+8*s);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,WRITE,5,raw_mov_w_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R2 s))

LOWFUNC(NONE,WRITE,5,raw_mov_b_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R1 s))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x88);
    emit_byte(0x84+8*s);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,WRITE,5,raw_mov_b_bmrr_indexed,(IMM base, R4 baser, R4 index, IMM factor, R1 s))

LOWFUNC(NONE,READ,5,raw_mov_l_brrm_indexed,(W4 d, IMM base, R4 baser, R4 index, IMM factor))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x8b);
    emit_byte(0x84+8*d);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,READ,5,raw_mov_l_brrm_indexed,(W4 d, IMM base, R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,READ,5,raw_mov_w_brrm_indexed,(W2 d, IMM base, R4 baser, R4 index, IMM factor))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x66);
    emit_byte(0x8b);
    emit_byte(0x84+8*d);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,READ,5,raw_mov_w_brrm_indexed,(W2 d, IMM base, R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,READ,5,raw_mov_b_brrm_indexed,(W1 d, IMM base, R4 baser, R4 index, IMM factor))
{
  int fi;

  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x8a);
    emit_byte(0x84+8*d);
    emit_byte(baser+8*index+0x40*fi);
    emit_long(base);
}
LENDFUNC(NONE,READ,5,raw_mov_b_brrm_indexed,(W1 d, IMM base, R4 baser, R4 index, IMM factor))

LOWFUNC(NONE,READ,4,raw_mov_l_rm_indexed,(W4 d, IMM base, R4 index, IMM factor))
{
  int fi;
  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: 
    fprintf(stderr,"Bad factor %d in mov_l_rm_indexed!\n",factor);
    abort();
  }
    emit_byte(0x8b);
    emit_byte(0x04+8*d);
    emit_byte(0x05+8*index+64*fi);
    emit_long(base);
}
LENDFUNC(NONE,READ,4,raw_mov_l_rm_indexed,(W4 d, IMM base, R4 index, IMM factor))

LOWFUNC(NONE,READ,5,raw_cmov_l_rm_indexed,(W4 d, IMM base, R4 index, IMM factor, IMM cond))
{
    int fi;
    switch(factor) {
     case 1: fi=0; break;
     case 2: fi=1; break;
     case 4: fi=2; break;
     case 8: fi=3; break;
     default: 
        fprintf(stderr,"Bad factor %d in mov_l_rm_indexed!\n",factor);
        abort();
    }
    if (have_cmov) {
        emit_byte(0x0f);
        emit_byte(0x40+cond);
        emit_byte(0x04+8*d);
        emit_byte(0x05+8*index+64*fi);
        emit_long(base);
    }
    else { /* replacement using branch and mov */
        int uncc=(cond^1);
        emit_byte(0x70+uncc); 
        emit_byte(7);  /* skip next 7 bytes if not cc=true */
        emit_byte(0x8b);
        emit_byte(0x04+8*d);
        emit_byte(0x05+8*index+64*fi);
        emit_long(base);
    }
}
LENDFUNC(NONE,READ,5,raw_cmov_l_rm_indexed,(W4 d, IMM base, R4 index, IMM factor, IMM cond))

LOWFUNC(NONE,READ,3,raw_cmov_l_rm,(W4 d, IMM mem, IMM cond))
{
    if (have_cmov) {
        emit_byte(0x0f);
        emit_byte(0x40+cond);
        emit_byte(0x05+8*d);
        emit_long(mem);
    }
    else { /* replacement using branch and mov */
        int uncc=(cond^1);
        emit_byte(0x70+uncc); 
        emit_byte(6);  /* skip next 6 bytes if not cc=true */
        emit_byte(0x8b);
        emit_byte(0x05+8*d);
        emit_long(mem);
    }
}
LENDFUNC(NONE,READ,3,raw_cmov_l_rm,(W4 d, IMM mem, IMM cond))

LOWFUNC(NONE,READ,3,raw_mov_l_rR,(W4 d, R4 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x8b);
    emit_byte(0x40+8*d+s);
    emit_byte(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_l_rR,(W4 d, R4 s, IMM offset))

LOWFUNC(NONE,READ,3,raw_mov_w_rR,(W2 d, R4 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x66);
    emit_byte(0x8b);
    emit_byte(0x40+8*d+s);
    emit_byte(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_w_rR,(W2 d, R4 s, IMM offset))

LOWFUNC(NONE,READ,3,raw_mov_b_rR,(W1 d, R4 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x8a);
    emit_byte(0x40+8*d+s);
    emit_byte(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_b_rR,(W1 d, R4 s, IMM offset))

LOWFUNC(NONE,READ,3,raw_mov_l_brR,(W4 d, R4 s, IMM offset))
{
    emit_byte(0x8b);
    emit_byte(0x80+8*d+s);
    emit_long(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_l_brR,(W4 d, R4 s, IMM offset))

LOWFUNC(NONE,READ,3,raw_mov_w_brR,(W2 d, R4 s, IMM offset))
{
    emit_byte(0x66);
    emit_byte(0x8b);
    emit_byte(0x80+8*d+s);
    emit_long(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_w_brR,(W2 d, R4 s, IMM offset))

LOWFUNC(NONE,READ,3,raw_mov_b_brR,(W1 d, R4 s, IMM offset))
{
    emit_byte(0x8a);
    emit_byte(0x80+8*d+s);
    emit_long(offset);
}
LENDFUNC(NONE,READ,3,raw_mov_b_brR,(W1 d, R4 s, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_l_Ri,(R4 d, IMM i, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0xc7);
    emit_byte(0x40+d);
    emit_byte(offset);
    emit_long(i);
}
LENDFUNC(NONE,WRITE,3,raw_mov_l_Ri,(R4 d, IMM i, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_w_Ri,(R4 d, IMM i, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x66);
    emit_byte(0xc7);
    emit_byte(0x40+d);
    emit_byte(offset);
    emit_word(i);
}
LENDFUNC(NONE,WRITE,3,raw_mov_w_Ri,(R4 d, IMM i, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_b_Ri,(R4 d, IMM i, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0xc6);
    emit_byte(0x40+d);
    emit_byte(offset);
    emit_byte(i);
}
LENDFUNC(NONE,WRITE,3,raw_mov_b_Ri,(R4 d, IMM i, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_l_Rr,(R4 d, R4 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x89);
    emit_byte(0x40+8*s+d);
    emit_byte(offset);
}
LENDFUNC(NONE,WRITE,3,raw_mov_l_Rr,(R4 d, R4 s, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_w_Rr,(R4 d, R2 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0x40+8*s+d);
    emit_byte(offset);
}
LENDFUNC(NONE,WRITE,3,raw_mov_w_Rr,(R4 d, R2 s, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_b_Rr,(R4 d, R1 s, IMM offset))
{
        Dif(!isbyte(offset)) abort();
    emit_byte(0x88);
    emit_byte(0x40+8*s+d);
    emit_byte(offset);
}
LENDFUNC(NONE,WRITE,3,raw_mov_b_Rr,(R4 d, R1 s, IMM offset))

LOWFUNC(NONE,NONE,3,raw_lea_l_brr,(W4 d, R4 s, IMM offset))
{
        if (optimize_imm8 && isbyte(offset)) {
    emit_byte(0x8d);
        emit_byte(0x40+8*d+s);
        emit_byte(offset);
        }
        else {
    emit_byte(0x8d);
        emit_byte(0x80+8*d+s);
        emit_long(offset);
        }
}
LENDFUNC(NONE,NONE,3,raw_lea_l_brr,(W4 d, R4 s, IMM offset))

LOWFUNC(NONE,NONE,5,raw_lea_l_brr_indexed,(W4 d, R4 s, R4 index, IMM factor, IMM offset))
{
  int fi;
  
  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

        if (optimize_imm8 && isbyte(offset)) {
    emit_byte(0x8d);
        emit_byte(0x44+8*d);
        emit_byte(0x40*fi+8*index+s);
        emit_byte(offset);
        }
        else {
    emit_byte(0x8d);
        emit_byte(0x84+8*d);
        emit_byte(0x40*fi+8*index+s);
        emit_long(offset);
        }
}
LENDFUNC(NONE,NONE,5,raw_lea_l_brr_indexed,(W4 d, R4 s, R4 index, IMM factor, IMM offset))

LOWFUNC(NONE,NONE,4,raw_lea_l_rr_indexed,(W4 d, R4 s, R4 index, IMM factor))
{
  int isebp=(s==5)?0x40:0;
  int fi;
  
  switch(factor) {
  case 1: fi=0; break;
  case 2: fi=1; break;
  case 4: fi=2; break;
  case 8: fi=3; break;
  default: abort();
  }

    emit_byte(0x8d);
    emit_byte(0x04+8*d+isebp);
    emit_byte(0x40*fi+8*index+s);
    if (isebp)
      emit_byte(0);
}
LENDFUNC(NONE,NONE,4,raw_lea_l_rr_indexed,(W4 d, R4 s, R4 index, IMM factor))

LOWFUNC(NONE,WRITE,3,raw_mov_l_bRr,(R4 d, R4 s, IMM offset))
{
        if (optimize_imm8 && isbyte(offset)) {
    emit_byte(0x89);
    emit_byte(0x40+8*s+d);
    emit_byte(offset);
        }
        else {
    emit_byte(0x89);
    emit_byte(0x80+8*s+d);
    emit_long(offset);
        }
}
LENDFUNC(NONE,WRITE,3,raw_mov_l_bRr,(R4 d, R4 s, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_w_bRr,(R4 d, R2 s, IMM offset))
{
    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0x80+8*s+d);
    emit_long(offset);
}
LENDFUNC(NONE,WRITE,3,raw_mov_w_bRr,(R4 d, R2 s, IMM offset))

LOWFUNC(NONE,WRITE,3,raw_mov_b_bRr,(R4 d, R1 s, IMM offset))
{
        if (optimize_imm8 && isbyte(offset)) {
    emit_byte(0x88);
    emit_byte(0x40+8*s+d);
    emit_byte(offset);
        }
        else {
    emit_byte(0x88);
    emit_byte(0x80+8*s+d);
    emit_long(offset);
        }
}
LENDFUNC(NONE,WRITE,3,raw_mov_b_bRr,(R4 d, R1 s, IMM offset))

LOWFUNC(NONE,NONE,1,raw_bswap_32,(RW4 r))
{
    emit_byte(0x0f);
    emit_byte(0xc8+r);
}
LENDFUNC(NONE,NONE,1,raw_bswap_32,(RW4 r))

LOWFUNC(WRITE,NONE,1,raw_bswap_16,(RW2 r))
{
    emit_byte(0x66);
    emit_byte(0xc1);
    emit_byte(0xc0+r);
    emit_byte(0x08);
}
LENDFUNC(WRITE,NONE,1,raw_bswap_16,(RW2 r))

LOWFUNC(NONE,NONE,2,raw_mov_l_rr,(W4 d, R4 s))
{
    emit_byte(0x89);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(NONE,NONE,2,raw_mov_l_rr,(W4 d, R4 s))

LOWFUNC(NONE,WRITE,2,raw_mov_l_mr,(IMM d, R4 s))
{
    emit_byte(0x89);
    emit_byte(0x05+8*s);
    emit_long(d);
}
LENDFUNC(NONE,WRITE,2,raw_mov_l_mr,(IMM d, R4 s))

LOWFUNC(NONE,WRITE,2,raw_mov_w_mr,(IMM d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x89);
    emit_byte(0x05+8*s);
    emit_long(d);
}
LENDFUNC(NONE,WRITE,2,raw_mov_w_mr,(IMM d, R2 s))

LOWFUNC(NONE,READ,2,raw_mov_w_rm,(W2 d, IMM s))
{
    emit_byte(0x66);
    emit_byte(0x8b);
    emit_byte(0x05+8*d);
    emit_long(s);
}
LENDFUNC(NONE,READ,2,raw_mov_w_rm,(W2 d, IMM s))

LOWFUNC(NONE,WRITE,2,raw_mov_b_mr,(IMM d, R1 s))
{
    emit_byte(0x88);
    emit_byte(0x05+8*s);
    emit_long(d);
}
LENDFUNC(NONE,WRITE,2,raw_mov_b_mr,(IMM d, R1 s))

LOWFUNC(NONE,READ,2,raw_mov_b_rm,(W1 d, IMM s))
{
    emit_byte(0x8a);
    emit_byte(0x05+8*d);
    emit_long(s);
}
LENDFUNC(NONE,READ,2,raw_mov_b_rm,(W1 d, IMM s))

LOWFUNC(NONE,NONE,2,raw_mov_l_ri,(W4 d, IMM s))
{
    emit_byte(0xb8+d);
    emit_long(s);
}
LENDFUNC(NONE,NONE,2,raw_mov_l_ri,(W4 d, IMM s))

LOWFUNC(NONE,NONE,2,raw_mov_w_ri,(W2 d, IMM s))
{
    emit_byte(0x66);
    emit_byte(0xb8+d);
    emit_word(s);
}
LENDFUNC(NONE,NONE,2,raw_mov_w_ri,(W2 d, IMM s))

LOWFUNC(NONE,NONE,2,raw_mov_b_ri,(W1 d, IMM s))
{
    emit_byte(0xb0+d);
    emit_byte(s);
}
LENDFUNC(NONE,NONE,2,raw_mov_b_ri,(W1 d, IMM s))

LOWFUNC(RMW,RMW,2,raw_adc_l_mi,(MEMRW d, IMM s))
{
    emit_byte(0x81);
    emit_byte(0x15);
    emit_long(d);
    emit_long(s);
}
LENDFUNC(RMW,RMW,2,raw_adc_l_mi,(MEMRW d, IMM s))

LOWFUNC(WRITE,RMW,2,raw_add_l_mi,(IMM d, IMM s)) 
{
        if (optimize_imm8 && isbyte(s)) {
    emit_byte(0x83);
    emit_byte(0x05);
    emit_long(d);
    emit_byte(s);
        }
        else {
    emit_byte(0x81);
    emit_byte(0x05);
    emit_long(d);
    emit_long(s);
        }
}
LENDFUNC(WRITE,RMW,2,raw_add_l_mi,(IMM d, IMM s)) 

LOWFUNC(WRITE,RMW,2,raw_add_w_mi,(IMM d, IMM s)) 
{
    emit_byte(0x66);
    emit_byte(0x81);
    emit_byte(0x05);
    emit_long(d);
    emit_word(s);
}
LENDFUNC(WRITE,RMW,2,raw_add_w_mi,(IMM d, IMM s)) 

LOWFUNC(WRITE,RMW,2,raw_add_b_mi,(IMM d, IMM s)) 
{
    emit_byte(0x80);
    emit_byte(0x05);
    emit_long(d);
    emit_byte(s);
}
LENDFUNC(WRITE,RMW,2,raw_add_b_mi,(IMM d, IMM s)) 

LOWFUNC(WRITE,NONE,2,raw_test_l_ri,(R4 d, IMM i))
{
        if (optimize_accum && isaccum(d))
        emit_byte(0xa9);
        else {
    emit_byte(0xf7);
    emit_byte(0xc0+d);
        }
    emit_long(i);
}
LENDFUNC(WRITE,NONE,2,raw_test_l_ri,(R4 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_test_l_rr,(R4 d, R4 s))
{
    emit_byte(0x85);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_test_l_rr,(R4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_test_w_rr,(R2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x85);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_test_w_rr,(R2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_test_b_rr,(R1 d, R1 s))
{
    emit_byte(0x84);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_test_b_rr,(R1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_and_l_ri,(RW4 d, IMM i))
{
        if (optimize_imm8 && isbyte(i)) {
        emit_byte(0x83);
        emit_byte(0xe0+d);
        emit_byte(i);
        }
        else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x25);
        else {
        emit_byte(0x81);
        emit_byte(0xe0+d);
        }
        emit_long(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_and_l_ri,(RW4 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_and_w_ri,(RW2 d, IMM i))
{
        emit_byte(0x66);
        if (optimize_imm8 && isbyte(i)) {
        emit_byte(0x83);
        emit_byte(0xe0+d);
        emit_byte(i);
        }
        else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x25);
        else {
        emit_byte(0x81);
        emit_byte(0xe0+d);
        }
        emit_word(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_and_w_ri,(RW2 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_and_l,(RW4 d, R4 s))
{
    emit_byte(0x21);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_and_l,(RW4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_and_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x21);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_and_w,(RW2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_and_b,(RW1 d, R1 s))
{
    emit_byte(0x20);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_and_b,(RW1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_or_l_ri,(RW4 d, IMM i))
{
        if (optimize_imm8 && isbyte(i)) {
    emit_byte(0x83);
    emit_byte(0xc8+d);
    emit_byte(i);
        }
        else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x0d);
        else {
    emit_byte(0x81);
    emit_byte(0xc8+d);
        }
    emit_long(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_or_l_ri,(RW4 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_or_l,(RW4 d, R4 s))
{
    emit_byte(0x09);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_or_l,(RW4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_or_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x09);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_or_w,(RW2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_or_b,(RW1 d, R1 s))
{
    emit_byte(0x08);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_or_b,(RW1 d, R1 s))

LOWFUNC(RMW,NONE,2,raw_adc_l,(RW4 d, R4 s))
{
    emit_byte(0x11);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_adc_l,(RW4 d, R4 s))

LOWFUNC(RMW,NONE,2,raw_adc_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x11);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_adc_w,(RW2 d, R2 s))

LOWFUNC(RMW,NONE,2,raw_adc_b,(RW1 d, R1 s))
{
    emit_byte(0x10);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_adc_b,(RW1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_add_l,(RW4 d, R4 s))
{
    emit_byte(0x01);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_add_l,(RW4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_add_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x01);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_add_w,(RW2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_add_b,(RW1 d, R1 s))
{
    emit_byte(0x00);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_add_b,(RW1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_sub_l_ri,(RW4 d, IMM i))
{
  if (isbyte(i)) {
    emit_byte(0x83);
    emit_byte(0xe8+d);
    emit_byte(i);
  }
  else {
    if (optimize_accum && isaccum(d))
    emit_byte(0x2d);
    else {
    emit_byte(0x81);
    emit_byte(0xe8+d);
    }
    emit_long(i);
  }
}
LENDFUNC(WRITE,NONE,2,raw_sub_l_ri,(RW4 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_sub_b_ri,(RW1 d, IMM i))
{
        if (optimize_accum && isaccum(d))
        emit_byte(0x2c);
        else {
    emit_byte(0x80);
    emit_byte(0xe8+d);
        }
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_sub_b_ri,(RW1 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_add_l_ri,(RW4 d, IMM i))
{
    if (isbyte(i)) {
        emit_byte(0x83);
        emit_byte(0xc0+d);
        emit_byte(i);
    }
    else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x05);
        else {
        emit_byte(0x81);
        emit_byte(0xc0+d);
        }
        emit_long(i);
    }
}
LENDFUNC(WRITE,NONE,2,raw_add_l_ri,(RW4 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_add_w_ri,(RW2 d, IMM i))
{
        emit_byte(0x66);
    if (isbyte(i)) {
        emit_byte(0x83);
        emit_byte(0xc0+d);
        emit_byte(i);
    }
    else {
        if (optimize_accum && isaccum(d))
        emit_byte(0x05);
        else {
        emit_byte(0x81);
        emit_byte(0xc0+d);
        }
        emit_word(i);
    }
}
LENDFUNC(WRITE,NONE,2,raw_add_w_ri,(RW2 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_add_b_ri,(RW1 d, IMM i))
{
        if (optimize_accum && isaccum(d))
        emit_byte(0x04);
        else {
        emit_byte(0x80);
        emit_byte(0xc0+d);
        }
    emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_add_b_ri,(RW1 d, IMM i))

LOWFUNC(RMW,NONE,2,raw_sbb_l,(RW4 d, R4 s))
{
    emit_byte(0x19);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_sbb_l,(RW4 d, R4 s))

LOWFUNC(RMW,NONE,2,raw_sbb_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x19);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_sbb_w,(RW2 d, R2 s))

LOWFUNC(RMW,NONE,2,raw_sbb_b,(RW1 d, R1 s))
{
    emit_byte(0x18);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(RMW,NONE,2,raw_sbb_b,(RW1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_sub_l,(RW4 d, R4 s))
{
    emit_byte(0x29);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_sub_l,(RW4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_sub_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x29);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_sub_w,(RW2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_sub_b,(RW1 d, R1 s))
{
    emit_byte(0x28);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_sub_b,(RW1 d, R1 s))

LOWFUNC(WRITE,NONE,2,raw_cmp_l,(R4 d, R4 s))
{
    emit_byte(0x39);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_cmp_l,(R4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_cmp_l_ri,(R4 r, IMM i))
{
        if (optimize_imm8 && isbyte(i)) {
    emit_byte(0x83);
    emit_byte(0xf8+r);
    emit_byte(i);
        }
        else {
        if (optimize_accum && isaccum(r))
        emit_byte(0x3d);
        else {
    emit_byte(0x81);
    emit_byte(0xf8+r);
        }
    emit_long(i);
        }
}
LENDFUNC(WRITE,NONE,2,raw_cmp_l_ri,(R4 r, IMM i))

LOWFUNC(WRITE,NONE,2,raw_cmp_w,(R2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x39);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_cmp_w,(R2 d, R2 s))

LOWFUNC(WRITE,READ,2,raw_cmp_b_mi,(MEMR d, IMM s))
{
    emit_byte(0x80);
    emit_byte(0x3d);
    emit_long(d);
    emit_byte(s);
}
LENDFUNC(WRITE,READ,2,raw_cmp_l_mi,(MEMR d, IMM s))

LOWFUNC(WRITE,NONE,2,raw_cmp_b_ri,(R1 d, IMM i))
{
  if (optimize_accum && isaccum(d))
  emit_byte(0x3c);
  else {
  emit_byte(0x80);
  emit_byte(0xf8+d);
  }
  emit_byte(i);
}
LENDFUNC(WRITE,NONE,2,raw_cmp_b_ri,(R1 d, IMM i))

LOWFUNC(WRITE,NONE,2,raw_cmp_b,(R1 d, R1 s))
{
    emit_byte(0x38);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_cmp_b,(R1 d, R1 s))

LOWFUNC(WRITE,READ,4,raw_cmp_l_rm_indexed,(R4 d, IMM offset, R4 index, IMM factor))
{
    int fi;
    
    switch(factor) {
     case 1: fi=0; break;
     case 2: fi=1; break;
     case 4: fi=2; break;
     case 8: fi=3; break;
     default: abort();
    }
    emit_byte(0x39);
    emit_byte(0x04+8*d);
    emit_byte(5+8*index+0x40*fi);
    emit_long(offset);
}
LENDFUNC(WRITE,READ,4,raw_cmp_l_rm_indexed,(R4 d, IMM offset, R4 index, IMM factor))

LOWFUNC(WRITE,NONE,2,raw_xor_l,(RW4 d, R4 s))
{
    emit_byte(0x31);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_xor_l,(RW4 d, R4 s))

LOWFUNC(WRITE,NONE,2,raw_xor_w,(RW2 d, R2 s))
{
    emit_byte(0x66);
    emit_byte(0x31);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_xor_w,(RW2 d, R2 s))

LOWFUNC(WRITE,NONE,2,raw_xor_b,(RW1 d, R1 s))
{
    emit_byte(0x30);
    emit_byte(0xc0+8*s+d);
}
LENDFUNC(WRITE,NONE,2,raw_xor_b,(RW1 d, R1 s))

LOWFUNC(WRITE,RMW,2,raw_sub_l_mi,(MEMRW d, IMM s))
{
        if (optimize_imm8 && isbyte(s)) {
    emit_byte(0x83);
    emit_byte(0x2d);
    emit_long(d);
    emit_byte(s);
        }
        else {
    emit_byte(0x81);
    emit_byte(0x2d);
    emit_long(d);
    emit_long(s);
        }
}
LENDFUNC(WRITE,RMW,2,raw_sub_l_mi,(MEMRW d, IMM s))

LOWFUNC(WRITE,READ,2,raw_cmp_l_mi,(MEMR d, IMM s))
{
        if (optimize_imm8 && isbyte(s)) {
    emit_byte(0x83);
    emit_byte(0x3d);
    emit_long(d);
    emit_byte(s);
        }
        else {
    emit_byte(0x81);
    emit_byte(0x3d);
    emit_long(d);
    emit_long(s);
        }
}
LENDFUNC(WRITE,READ,2,raw_cmp_l_mi,(MEMR d, IMM s))

LOWFUNC(NONE,NONE,2,raw_xchg_l_rr,(RW4 r1, RW4 r2))
{
  emit_byte(0x87);
  emit_byte(0xc0+8*r1+r2);
}
LENDFUNC(NONE,NONE,2,raw_xchg_l_rr,(RW4 r1, RW4 r2))

/*************************************************************************
 * FIXME: string-related instructions                                    *
 *************************************************************************/

LOWFUNC(WRITE,NONE,0,raw_cld,(void))
{
        emit_byte(0xfc);
}
LENDFUNC(WRITE,NONE,0,raw_cld,(void))

LOWFUNC(WRITE,NONE,0,raw_std,(void))
{
        emit_byte(0xfd);
}
LENDFUNC(WRITE,NONE,0,raw_std,(void))

LOWFUNC(NONE,RMW,0,raw_movs_b,(void))
{
        emit_byte(0xa4);
}
LENDFUNC(NONE,RMW,0,raw_movs_b,(void))

LOWFUNC(NONE,RMW,0,raw_movs_l,(void))
{
        emit_byte(0xa5);
}
LENDFUNC(NONE,RMW,0,raw_movs_l,(void))

LOWFUNC(NONE,RMW,0,raw_rep,(void))
{
        emit_byte(0xf3);
}
LENDFUNC(NONE,RMW,0,raw_rep,(void))

LOWFUNC(NONE,RMW,0,raw_rep_movsb,(void))
{
        raw_rep();
        raw_movs_b();
}
LENDFUNC(NONE,RMW,0,raw_rep_movsb,(void))

LOWFUNC(NONE,RMW,0,raw_rep_movsl,(void))
{
        raw_rep();
        raw_movs_l();
}
LENDFUNC(NONE,RMW,0,raw_rep_movsl,(void))

/*************************************************************************
 * FIXME: mem access modes probably wrong                                *
 *************************************************************************/

LOWFUNC(READ,WRITE,0,raw_pushfl,(void))
{
        emit_byte(0x9c);
}
LENDFUNC(READ,WRITE,0,raw_pushfl,(void))

LOWFUNC(WRITE,READ,0,raw_popfl,(void))
{
        emit_byte(0x9d);
}
LENDFUNC(WRITE,READ,0,raw_popfl,(void))

/*************************************************************************
 * Unoptimizable stuff --- jump                                          *
 *************************************************************************/

static __inline__ void raw_call_r(R4 r)
{
    emit_byte(0xff);
    emit_byte(0xd0+r);
}

static __inline__ void raw_call_m_indexed(uae_u32 base, uae_u32 r, uae_u32 m)
{
    int mu;
    switch(m) {
     case 1: mu=0; break;
     case 2: mu=1; break;
     case 4: mu=2; break;
     case 8: mu=3; break;
     default: abort();
    }
    emit_byte(0xff);
    emit_byte(0x14);
    emit_byte(0x05+8*r+0x40*mu);
    emit_long(base);
}

static __inline__ void raw_jmp_r(R4 r)
{
    emit_byte(0xff);
    emit_byte(0xe0+r);
}

static __inline__ void raw_jmp_m_indexed(uae_u32 base, uae_u32 r, uae_u32 m)
{
    int mu;
    switch(m) {
     case 1: mu=0; break;
     case 2: mu=1; break;
     case 4: mu=2; break;
     case 8: mu=3; break;
     default: abort();
    }
    emit_byte(0xff);
    emit_byte(0x24);
    emit_byte(0x05+8*r+0x40*mu);
    emit_long(base);
}

static __inline__ void raw_jmp_m(uae_u32 base)
{
    emit_byte(0xff);
    emit_byte(0x25);
    emit_long(base);
}


static __inline__ void raw_call(uae_u32 t)
{
    emit_byte(0xe8);
    emit_long(t-(uae_u32)target-4);
}

static __inline__ void raw_jmp(uae_u32 t)
{
    emit_byte(0xe9);
    emit_long(t-(uae_u32)target-4);
}

static __inline__ void raw_jl(uae_u32 t)
{
    emit_byte(0x0f);
    emit_byte(0x8c);
    emit_long(t-(uae_u32)target-4);
}

static __inline__ void raw_jz(uae_u32 t)
{
    emit_byte(0x0f);
    emit_byte(0x84);
    emit_long(t-(uae_u32)target-4);
}

static __inline__ void raw_jnz(uae_u32 t)
{
    emit_byte(0x0f);
    emit_byte(0x85);
    emit_long(t-(uae_u32)target-4);
}

static __inline__ void raw_jnz_l_oponly(void)
{
    emit_byte(0x0f); 
    emit_byte(0x85); 
}

static __inline__ void raw_jcc_l_oponly(int cc)
{
    emit_byte(0x0f); 
    emit_byte(0x80+cc); 
}

static __inline__ void raw_jnz_b_oponly(void)
{
    emit_byte(0x75); 
}

static __inline__ void raw_jz_b_oponly(void)
{
    emit_byte(0x74); 
}

static __inline__ void raw_jcc_b_oponly(int cc)
{
        emit_byte(0x70+cc);
}

static __inline__ void raw_jmp_l_oponly(void)
{
    emit_byte(0xe9); 
}

static __inline__ void raw_jmp_b_oponly(void)
{
    emit_byte(0xeb); 
}

static __inline__ void raw_ret(void)
{
    emit_byte(0xc3);  
}

static __inline__ void raw_nop(void)
{
    emit_byte(0x90);
}

static __inline__ void raw_emit_nop_filler(int nbytes)
{
  /* Source: GNU Binutils 2.12.90.0.15 */
  /* Various efficient no-op patterns for aligning code labels.
     Note: Don't try to assemble the instructions in the comments.
     0L and 0w are not legal.  */
  static const uae_u8 f32_1[] =
    {0x90};                                                                     /* nop                                  */
  static const uae_u8 f32_2[] =
    {0x89,0xf6};                                                        /* movl %esi,%esi               */
  static const uae_u8 f32_3[] =
    {0x8d,0x76,0x00};                                           /* leal 0(%esi),%esi    */
  static const uae_u8 f32_4[] =
    {0x8d,0x74,0x26,0x00};                                      /* leal 0(%esi,1),%esi  */
  static const uae_u8 f32_5[] =
    {0x90,                                                                      /* nop                                  */
     0x8d,0x74,0x26,0x00};                                      /* leal 0(%esi,1),%esi  */
  static const uae_u8 f32_6[] =
    {0x8d,0xb6,0x00,0x00,0x00,0x00};            /* leal 0L(%esi),%esi   */
  static const uae_u8 f32_7[] =
    {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00};       /* leal 0L(%esi,1),%esi */
  static const uae_u8 f32_8[] =
    {0x90,                                                                      /* nop                                  */
     0x8d,0xb4,0x26,0x00,0x00,0x00,0x00};       /* leal 0L(%esi,1),%esi */
  static const uae_u8 f32_9[] =
    {0x89,0xf6,                                                         /* movl %esi,%esi               */
     0x8d,0xbc,0x27,0x00,0x00,0x00,0x00};       /* leal 0L(%edi,1),%edi */
  static const uae_u8 f32_10[] =
    {0x8d,0x76,0x00,                                            /* leal 0(%esi),%esi    */
     0x8d,0xbc,0x27,0x00,0x00,0x00,0x00};       /* leal 0L(%edi,1),%edi */
  static const uae_u8 f32_11[] =
    {0x8d,0x74,0x26,0x00,                                       /* leal 0(%esi,1),%esi  */
     0x8d,0xbc,0x27,0x00,0x00,0x00,0x00};       /* leal 0L(%edi,1),%edi */
  static const uae_u8 f32_12[] =
    {0x8d,0xb6,0x00,0x00,0x00,0x00,                     /* leal 0L(%esi),%esi   */
     0x8d,0xbf,0x00,0x00,0x00,0x00};            /* leal 0L(%edi),%edi   */
  static const uae_u8 f32_13[] =
    {0x8d,0xb6,0x00,0x00,0x00,0x00,                     /* leal 0L(%esi),%esi   */
     0x8d,0xbc,0x27,0x00,0x00,0x00,0x00};       /* leal 0L(%edi,1),%edi */
  static const uae_u8 f32_14[] =
    {0x8d,0xb4,0x26,0x00,0x00,0x00,0x00,        /* leal 0L(%esi,1),%esi */
     0x8d,0xbc,0x27,0x00,0x00,0x00,0x00};       /* leal 0L(%edi,1),%edi */
  static const uae_u8 f32_15[] =
    {0xeb,0x0d,0x90,0x90,0x90,0x90,0x90,        /* jmp .+15; lotsa nops */
     0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90};
  static const uae_u8 f32_16[] =
    {0xeb,0x0d,0x90,0x90,0x90,0x90,0x90,        /* jmp .+15; lotsa nops */
     0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90,0x90};
  static const uae_u8 *const f32_patt[] = {
    f32_1, f32_2, f32_3, f32_4, f32_5, f32_6, f32_7, f32_8,
    f32_9, f32_10, f32_11, f32_12, f32_13, f32_14, f32_15
  };

  int nloops = nbytes / 16;
  while (nloops-- > 0)
        emit_block(f32_16, sizeof(f32_16));

  nbytes %= 16;
  if (nbytes)
        emit_block(f32_patt[nbytes - 1], nbytes);
}


/*************************************************************************
 * Flag handling, to and fro UAE flag register                           *
 *************************************************************************/

#ifdef SAHF_SETO_PROFITABLE

#define FLAG_NREG1 0  /* Set to -1 if any register will do */

static __inline__ void raw_flags_to_reg(int r)
{
  raw_lahf(0);  /* Most flags in AH */
  //raw_setcc(r,0); /* V flag in AL */
  raw_setcc_m((uae_u32)live.state[FLAGTMP].mem,0); 
  
#if 1   /* Let's avoid those nasty partial register stalls */
  //raw_mov_b_mr((uae_u32)live.state[FLAGTMP].mem,r);
  raw_mov_b_mr(((uae_u32)live.state[FLAGTMP].mem)+1,r+4);
  //live.state[FLAGTMP].status=CLEAN;
  live.state[FLAGTMP].status=INMEM;
  live.state[FLAGTMP].realreg=-1;
  /* We just "evicted" FLAGTMP. */
  if (live.nat[r].nholds!=1) {
      /* Huh? */
      abort();
  }
  live.nat[r].nholds=0;
#endif
}

#define FLAG_NREG2 0  /* Set to -1 if any register will do */
static __inline__ void raw_reg_to_flags(int r)
{
  raw_cmp_b_ri(r,-127); /* set V */
  raw_sahf(0);
}

#else

#define FLAG_NREG1 -1  /* Set to -1 if any register will do */
static __inline__ void raw_flags_to_reg(int r)
{
        raw_pushfl();
        raw_pop_l_r(r);
        raw_mov_l_mr((uae_u32)live.state[FLAGTMP].mem,r);
//      live.state[FLAGTMP].status=CLEAN;
        live.state[FLAGTMP].status=INMEM;
        live.state[FLAGTMP].realreg=-1;
        /* We just "evicted" FLAGTMP. */
        if (live.nat[r].nholds!=1) {
          /* Huh? */
          abort();
        }
        live.nat[r].nholds=0;
}

#define FLAG_NREG2 -1  /* Set to -1 if any register will do */
static __inline__ void raw_reg_to_flags(int r)
{
        raw_push_l_r(r);
        raw_popfl();
}

#endif

/* Apparently, there are enough instructions between flag store and
   flag reload to avoid the partial memory stall */
static __inline__ void raw_load_flagreg(uae_u32 target, uae_u32 r)
{
#if 1
    raw_mov_l_rm(target,(uae_u32)live.state[r].mem);
#else
    raw_mov_b_rm(target,(uae_u32)live.state[r].mem);
    raw_mov_b_rm(target+4,((uae_u32)live.state[r].mem)+1);
#endif
}

/* FLAGX is byte sized, and we *do* write it at that size */
static __inline__ void raw_load_flagx(uae_u32 target, uae_u32 r)
{
    if (live.nat[target].canbyte)
        raw_mov_b_rm(target,(uae_u32)live.state[r].mem);
    else if (live.nat[target].canword)
        raw_mov_w_rm(target,(uae_u32)live.state[r].mem);
    else
        raw_mov_l_rm(target,(uae_u32)live.state[r].mem);
}

#define NATIVE_FLAG_Z 0x40
static __inline__ void raw_flags_set_zero(int f, int r, int t)
{
        // FIXME: this is really suboptimal
        raw_pushfl();
        raw_pop_l_r(f);
        raw_and_l_ri(f,~NATIVE_FLAG_Z);
        raw_test_l_rr(r,r);
        raw_mov_l_ri(r,0);
        raw_mov_l_ri(t,NATIVE_FLAG_Z);
        raw_cmov_l_rr(r,t,NATIVE_CC_EQ);
        raw_or_l(f,r);
        raw_push_l_r(f);
        raw_popfl();
}

static __inline__ void raw_inc_sp(int off)
{
    raw_add_l_ri(ESP_INDEX,off);
}

/*************************************************************************
 * Handling mistaken direct memory access                                *
 *************************************************************************/

// gb-- I don't need that part for JIT Basilisk II
#if defined(NATMEM_OFFSET) && 0
#include <asm/sigcontext.h>
#include <signal.h>

#define SIG_READ 1
#define SIG_WRITE 2

static int in_handler=0;
static uae_u8 veccode[256];

static void vec(int x, struct sigcontext sc)
{
    uae_u8* i=(uae_u8*)sc.eip;
    uae_u32 addr=sc.cr2;
    int r=-1;
    int size=4;
    int dir=-1;
    int len=0;
    int j;
    
    write_log("fault address is %08x at %08x\n",sc.cr2,sc.eip);
    if (!canbang) 
        write_log("Not happy! Canbang is 0 in SIGSEGV handler!\n");
    if (in_handler) 
        write_log("Argh --- Am already in a handler. Shouldn't happen!\n");

    if (canbang && i>=compiled_code && i<=current_compile_p) {
        if (*i==0x66) {
            i++;
            size=2;
            len++;
        }
        
        switch(i[0]) {
         case 0x8a:
                                            if ((i[1]&0xc0)==0x80) {
                r=(i[1]>>3)&7;
                dir=SIG_READ;
                size=1;
                len+=6;
                break;
            }
            break;
         case 0x88:
            if ((i[1]&0xc0)==0x80) {
                r=(i[1]>>3)&7;
                dir=SIG_WRITE;
                size=1;
                len+=6;
                break;
            }
            break;
         case 0x8b:
            if ((i[1]&0xc0)==0x80) {
                r=(i[1]>>3)&7;
                dir=SIG_READ;
                len+=6;
                break;
            }
            if ((i[1]&0xc0)==0x40) {
                r=(i[1]>>3)&7;
                dir=SIG_READ;
                len+=3;
                break;
            }
            break;
         case 0x89:
            if ((i[1]&0xc0)==0x80) {
                r=(i[1]>>3)&7;
                dir=SIG_WRITE;
                len+=6;
                break;
            }
            if ((i[1]&0xc0)==0x40) {
                r=(i[1]>>3)&7;
                dir=SIG_WRITE;
                len+=3;
                break;
            }
            break;
        }       
    }

    if (r!=-1) { 
        void* pr=NULL;
        write_log("register was %d, direction was %d, size was %d\n",r,dir,size);
        
        switch(r) {
         case 0: pr=&(sc.eax); break;
         case 1: pr=&(sc.ecx); break;
         case 2: pr=&(sc.edx); break;
         case 3: pr=&(sc.ebx); break;
         case 4: pr=(size>1)?NULL:(((uae_u8*)&(sc.eax))+1); break;
         case 5: pr=(size>1)?
                     (void*)(&(sc.ebp)):
                         (void*)(((uae_u8*)&(sc.ecx))+1); break;
         case 6: pr=(size>1)?
                     (void*)(&(sc.esi)):
                         (void*)(((uae_u8*)&(sc.edx))+1); break;
         case 7: pr=(size>1)?
                     (void*)(&(sc.edi)):
                         (void*)(((uae_u8*)&(sc.ebx))+1); break;
         default: abort();
        }
        if (pr) {
            blockinfo* bi;

            if (currprefs.comp_oldsegv) {
            addr-=NATMEM_OFFSET;

            if ((addr>=0x10000000 && addr<0x40000000) ||
                (addr>=0x50000000)) {
                write_log("Suspicious address in %x SEGV handler.\n",addr);
            }
            if (dir==SIG_READ) {
                switch(size) {
                 case 1: *((uae_u8*)pr)=get_byte(addr); break;
                 case 2: *((uae_u16*)pr)=get_word(addr); break;
                 case 4: *((uae_u32*)pr)=get_long(addr); break;
                 default: abort();
                }
            }
            else { /* write */
                switch(size) {
                 case 1: put_byte(addr,*((uae_u8*)pr)); break;
                 case 2: put_word(addr,*((uae_u16*)pr)); break;
                 case 4: put_long(addr,*((uae_u32*)pr)); break;
                 default: abort();
                }
            }
            write_log("Handled one access!\n");
            fflush(stdout);
            segvcount++;
            sc.eip+=len;
            }
            else {
                void* tmp=target;
                int i;
                uae_u8 vecbuf[5];
                
                addr-=NATMEM_OFFSET;
                
                if ((addr>=0x10000000 && addr<0x40000000) ||
                    (addr>=0x50000000)) {
                    write_log("Suspicious address in %x SEGV handler.\n",addr);
                }
                
                target=(uae_u8*)sc.eip;
                for (i=0;i<5;i++)
                    vecbuf[i]=target[i];
                emit_byte(0xe9);
                emit_long((uae_u32)veccode-(uae_u32)target-4);
                write_log("Create jump to %p\n",veccode);
            
                write_log("Handled one access!\n");
                fflush(stdout);
                segvcount++;
                
                target=veccode;

                if (dir==SIG_READ) {
                    switch(size) {
                     case 1: raw_mov_b_ri(r,get_byte(addr)); break;
                     case 2: raw_mov_w_ri(r,get_byte(addr)); break;
                     case 4: raw_mov_l_ri(r,get_byte(addr)); break;
                     default: abort();
                    }
                }
                else { /* write */
                    switch(size) {
                     case 1: put_byte(addr,*((uae_u8*)pr)); break;
                     case 2: put_word(addr,*((uae_u16*)pr)); break;
                     case 4: put_long(addr,*((uae_u32*)pr)); break;
                     default: abort();
                    }
                }
                for (i=0;i<5;i++)
                    raw_mov_b_mi(sc.eip+i,vecbuf[i]);
                raw_mov_l_mi((uae_u32)&in_handler,0);
                emit_byte(0xe9);
                emit_long(sc.eip+len-(uae_u32)target-4);
                in_handler=1;
                target=tmp;
            }
            bi=active;
            while (bi) {
                if (bi->handler && 
                    (uae_u8*)bi->direct_handler<=i &&
                    (uae_u8*)bi->nexthandler>i) {
                    write_log("deleted trigger (%p<%p<%p) %p\n",
                              bi->handler,
                              i,
                              bi->nexthandler,
                              bi->pc_p);
                    invalidate_block(bi);
                    raise_in_cl_list(bi);
                    set_special(0);
                    return;
                }
                bi=bi->next;
            }
            /* Not found in the active list. Might be a rom routine that
               is in the dormant list */
            bi=dormant;
            while (bi) {
                if (bi->handler && 
                    (uae_u8*)bi->direct_handler<=i &&
                    (uae_u8*)bi->nexthandler>i) {
                    write_log("deleted trigger (%p<%p<%p) %p\n",
                              bi->handler,
                              i,
                              bi->nexthandler,
                              bi->pc_p);
                    invalidate_block(bi);
                    raise_in_cl_list(bi);
                    set_special(0);
                    return;
                }
                bi=bi->next;
            }
            write_log("Huh? Could not find trigger!\n");
            return;
        }
    }
    write_log("Can't handle access!\n");
    for (j=0;j<10;j++) {
        write_log("instruction byte %2d is %02x\n",j,i[j]);
    }
    write_log("Please send the above info (starting at \"fault address\") to\n"
           "bmeyer@csse.monash.edu.au\n"
           "This shouldn't happen ;-)\n");
    fflush(stdout);
    signal(SIGSEGV,SIG_DFL);  /* returning here will cause a "real" SEGV */
}
#endif


/*************************************************************************
 * Checking for CPU features                                             *
 *************************************************************************/

struct cpuinfo_x86 {
  uae_u8        x86;                    // CPU family
  uae_u8        x86_vendor;             // CPU vendor
  uae_u8        x86_processor;  // CPU canonical processor type
  uae_u8        x86_brand_id;   // CPU BrandID if supported, yield 0 otherwise
  uae_u32       x86_hwcap;
  uae_u8        x86_model;
  uae_u8        x86_mask;
  int           cpuid_level;    // Maximum supported CPUID level, -1=no CPUID
  char          x86_vendor_id[16];
};
struct cpuinfo_x86 cpuinfo;

enum {
  X86_VENDOR_INTEL              = 0,
  X86_VENDOR_CYRIX              = 1,
  X86_VENDOR_AMD                = 2,
  X86_VENDOR_UMC                = 3,
  X86_VENDOR_NEXGEN             = 4,
  X86_VENDOR_CENTAUR    = 5,
  X86_VENDOR_RISE               = 6,
  X86_VENDOR_TRANSMETA  = 7,
  X86_VENDOR_NSC                = 8,
  X86_VENDOR_UNKNOWN    = 0xff
};

enum {
  X86_PROCESSOR_I386,                       /* 80386 */
  X86_PROCESSOR_I486,                       /* 80486DX, 80486SX, 80486DX[24] */
  X86_PROCESSOR_PENTIUM,
  X86_PROCESSOR_PENTIUMPRO,
  X86_PROCESSOR_K6,
  X86_PROCESSOR_ATHLON,
  X86_PROCESSOR_PENTIUM4,
  X86_PROCESSOR_max
};

static const char * x86_processor_string_table[X86_PROCESSOR_max] = {
  "80386",
  "80486",
  "Pentium",
  "PentiumPro",
  "K6",
  "Athlon",
  "Pentium4"
};

static struct ptt {
  const int align_loop;
  const int align_loop_max_skip;
  const int align_jump;
  const int align_jump_max_skip;
  const int align_func;
}
x86_alignments[X86_PROCESSOR_max] = {
  {  4,  3,  4,  3,  4 },
  { 16, 15, 16, 15, 16 },
  { 16,  7, 16,  7, 16 },
  { 16, 15, 16,  7, 16 },
  { 32,  7, 32,  7, 32 },
  { 16,  7, 16,  7, 16 },
  {  0,  0,  0,  0,  0 }
};

static void
x86_get_cpu_vendor(struct cpuinfo_x86 *c)
{
        char *v = c->x86_vendor_id;

        if (!strcmp(v, "GenuineIntel"))
                c->x86_vendor = X86_VENDOR_INTEL;
        else if (!strcmp(v, "AuthenticAMD"))
                c->x86_vendor = X86_VENDOR_AMD;
        else if (!strcmp(v, "CyrixInstead"))
                c->x86_vendor = X86_VENDOR_CYRIX;
        else if (!strcmp(v, "Geode by NSC"))
                c->x86_vendor = X86_VENDOR_NSC;
        else if (!strcmp(v, "UMC UMC UMC "))
                c->x86_vendor = X86_VENDOR_UMC;
        else if (!strcmp(v, "CentaurHauls"))
                c->x86_vendor = X86_VENDOR_CENTAUR;
        else if (!strcmp(v, "NexGenDriven"))
                c->x86_vendor = X86_VENDOR_NEXGEN;
        else if (!strcmp(v, "RiseRiseRise"))
                c->x86_vendor = X86_VENDOR_RISE;
        else if (!strcmp(v, "GenuineTMx86") ||
                 !strcmp(v, "TransmetaCPU"))
                c->x86_vendor = X86_VENDOR_TRANSMETA;
        else
                c->x86_vendor = X86_VENDOR_UNKNOWN;
}

static void
cpuid(uae_u32 op, uae_u32 *eax, uae_u32 *ebx, uae_u32 *ecx, uae_u32 *edx)
{
  static uae_u8 cpuid_space[256];   
  uae_u8* tmp=get_target();

  set_target(cpuid_space);
  raw_push_l_r(0); /* eax */
  raw_push_l_r(1); /* ecx */
  raw_push_l_r(2); /* edx */
  raw_push_l_r(3); /* ebx */
  raw_mov_l_rm(0,(uae_u32)&op);
  raw_cpuid(0);
  if (eax != NULL) raw_mov_l_mr((uae_u32)eax,0);
  if (ebx != NULL) raw_mov_l_mr((uae_u32)ebx,3);
  if (ecx != NULL) raw_mov_l_mr((uae_u32)ecx,1);
  if (edx != NULL) raw_mov_l_mr((uae_u32)edx,2);
  raw_pop_l_r(3);
  raw_pop_l_r(2);
  raw_pop_l_r(1);
  raw_pop_l_r(0);
  raw_ret();
  set_target(tmp);

  ((cpuop_func*)cpuid_space)(0);
}

static void
raw_init_cpu(void)
{
  struct cpuinfo_x86 *c = &cpuinfo;

  /* Defaults */
  c->x86_vendor = X86_VENDOR_UNKNOWN;
  c->cpuid_level = -1;                          /* CPUID not detected */
  c->x86_model = c->x86_mask = 0;       /* So far unknown... */
  c->x86_vendor_id[0] = '\0';           /* Unset */
  c->x86_hwcap = 0;
  
  /* Get vendor name */
  c->x86_vendor_id[12] = '\0';
  cpuid(0x00000000,
                (uae_u32 *)&c->cpuid_level,
                (uae_u32 *)&c->x86_vendor_id[0],
                (uae_u32 *)&c->x86_vendor_id[8],
                (uae_u32 *)&c->x86_vendor_id[4]);
  x86_get_cpu_vendor(c);

  /* Intel-defined flags: level 0x00000001 */
  c->x86_brand_id = 0;
  if ( c->cpuid_level >= 0x00000001 ) {
        uae_u32 tfms, brand_id;
        cpuid(0x00000001, &tfms, &brand_id, NULL, &c->x86_hwcap);
        c->x86 = (tfms >> 8) & 15;
        c->x86_model = (tfms >> 4) & 15;
        c->x86_brand_id = brand_id & 0xff;
        if ( (c->x86_vendor == X86_VENDOR_AMD) &&
                 (c->x86 == 0xf)) {
          /* AMD Extended Family and Model Values */
          c->x86 += (tfms >> 20) & 0xff;
          c->x86_model += (tfms >> 12) & 0xf0;
        }
        c->x86_mask = tfms & 15;
  } else {
        /* Have CPUID level 0 only - unheard of */
        c->x86 = 4;
  }

  /* Canonicalize processor ID */
  c->x86_processor = X86_PROCESSOR_max;
  switch (c->x86) {
  case 3:
        c->x86_processor = X86_PROCESSOR_I386;
        break;
  case 4:
        c->x86_processor = X86_PROCESSOR_I486;
        break;
  case 5:
        if (c->x86_vendor == X86_VENDOR_AMD)
          c->x86_processor = X86_PROCESSOR_K6;
        else
          c->x86_processor = X86_PROCESSOR_PENTIUM;
        break;
  case 6:
        if (c->x86_vendor == X86_VENDOR_AMD)
          c->x86_processor = X86_PROCESSOR_ATHLON;
        else
          c->x86_processor = X86_PROCESSOR_PENTIUMPRO;
        break;
  case 15:
        if (c->x86_vendor == X86_VENDOR_INTEL) {
          /*  Assume any BranID >= 8 and family == 15 yields a Pentium 4 */
          if (c->x86_brand_id >= 8)
                c->x86_processor = X86_PROCESSOR_PENTIUM4;
        }
        break;
  }
  if (c->x86_processor == X86_PROCESSOR_max) {
        fprintf(stderr, "Error: unknown processor type\n");
        fprintf(stderr, "  Family  : %d\n", c->x86);
        fprintf(stderr, "  Model   : %d\n", c->x86_model);
        fprintf(stderr, "  Mask    : %d\n", c->x86_mask);
        if (c->x86_brand_id)
          fprintf(stderr, "  BrandID : %02x\n", c->x86_brand_id);
        abort();
  }

  /* Have CMOV support? */
  have_cmov = (c->x86_hwcap & (1 << 15)) && true;

  /* Can the host CPU suffer from partial register stalls? */
  have_rat_stall = (c->x86_vendor == X86_VENDOR_INTEL);
#if 1
  /* It appears that partial register writes are a bad idea even on
         AMD K7 cores, even though they are not supposed to have the
         dreaded rat stall. Why? Anyway, that's why we lie about it ;-) */
  if (c->x86_processor == X86_PROCESSOR_ATHLON)
        have_rat_stall = true;
#endif

  /* Alignments */
  if (tune_alignment) {
        align_loops = x86_alignments[c->x86_processor].align_loop;
        align_jumps = x86_alignments[c->x86_processor].align_jump;
  }

  write_log("Max CPUID level=%d Processor is %s [%s]\n",
                        c->cpuid_level, c->x86_vendor_id,
                        x86_processor_string_table[c->x86_processor]);
}

static bool target_check_bsf(void)
{
        bool mismatch = false;
        for (int g_ZF = 0; g_ZF <= 1; g_ZF++) {
        for (int g_CF = 0; g_CF <= 1; g_CF++) {
        for (int g_OF = 0; g_OF <= 1; g_OF++) {
        for (int g_SF = 0; g_SF <= 1; g_SF++) {
                for (int value = -1; value <= 1; value++) {
                        int flags = (g_SF << 7) | (g_OF << 11) | (g_ZF << 6) | g_CF;
                        int tmp = value;
                        __asm__ __volatile__ ("push %0; popf; bsf %1,%1; pushf; pop %0"
                                                                  : "+r" (flags), "+r" (tmp) : : "cc");
                        int OF = (flags >> 11) & 1;
                        int SF = (flags >>  7) & 1;
                        int ZF = (flags >>  6) & 1;
                        int CF = flags & 1;
                        tmp = (value == 0);
                        if (ZF != tmp || SF != g_SF || OF != g_OF || CF != g_CF)
                                mismatch = true;
                }
        }}}}
        if (mismatch)
                write_log("Target CPU defines all flags on BSF instruction\n");
        return !mismatch;
}


/*************************************************************************
 * FPU stuff                                                             *
 *************************************************************************/


static __inline__ void raw_fp_init(void)
{
    int i;
    
    for (i=0;i<N_FREGS;i++)
        live.spos[i]=-2;
    live.tos=-1;  /* Stack is empty */
}

static __inline__ void raw_fp_cleanup_drop(void)
{
#if 0
    /* using FINIT instead of popping all the entries.
       Seems to have side effects --- there is display corruption in
       Quake when this is used */
    if (live.tos>1) {
        emit_byte(0x9b);
        emit_byte(0xdb);
        emit_byte(0xe3);
        live.tos=-1;
    }
#endif
    while (live.tos>=1) {
        emit_byte(0xde);
        emit_byte(0xd9);
        live.tos-=2;
    }
    while (live.tos>=0) {
        emit_byte(0xdd);
        emit_byte(0xd8);
        live.tos--;
    }
    raw_fp_init();
}

static __inline__ void make_tos(int r)
{
    int p,q;

    if (live.spos[r]<0) { /* Register not yet on stack */
        emit_byte(0xd9);
        emit_byte(0xe8);  /* Push '1' on the stack, just to grow it */
        live.tos++;
        live.spos[r]=live.tos;
        live.onstack[live.tos]=r;
        return;
    }
    /* Register is on stack */
    if (live.tos==live.spos[r])
        return;
    p=live.spos[r];
    q=live.onstack[live.tos];

    emit_byte(0xd9);
    emit_byte(0xc8+live.tos-live.spos[r]);  /* exchange it with top of stack */
    live.onstack[live.tos]=r;
    live.spos[r]=live.tos;
    live.onstack[p]=q;
    live.spos[q]=p;
}

static __inline__ void make_tos2(int r, int r2)
{
    int q;

    make_tos(r2); /* Put the reg that's supposed to end up in position2
                     on top */

    if (live.spos[r]<0) { /* Register not yet on stack */
        make_tos(r); /* This will extend the stack */
        return;
    }
    /* Register is on stack */
    emit_byte(0xd9);
    emit_byte(0xc9); /* Move r2 into position 2 */

    q=live.onstack[live.tos-1];
    live.onstack[live.tos]=q;
    live.spos[q]=live.tos;
    live.onstack[live.tos-1]=r2;
    live.spos[r2]=live.tos-1;

    make_tos(r); /* And r into 1 */
}

static __inline__ int stackpos(int r)
{
    if (live.spos[r]<0)
        abort();
    if (live.tos<live.spos[r]) {
        printf("Looking for spos for fnreg %d\n",r);
        abort();
    }
    return live.tos-live.spos[r];
}

static __inline__ void usereg(int r)
{
    if (live.spos[r]<0)
        make_tos(r);
}

/* This is called with one FP value in a reg *above* tos, which it will
   pop off the stack if necessary */
static __inline__ void tos_make(int r)
{
    if (live.spos[r]<0) {
        live.tos++;
        live.spos[r]=live.tos;
        live.onstack[live.tos]=r;
        return;
    }
    emit_byte(0xdd);
    emit_byte(0xd8+(live.tos+1)-live.spos[r]);  /* store top of stack in reg, 
                                         and pop it*/
}
    
        
LOWFUNC(NONE,WRITE,2,raw_fmov_mr,(MEMW m, FR r))
{
    make_tos(r);
    emit_byte(0xdd);
    emit_byte(0x15);
    emit_long(m);
}
LENDFUNC(NONE,WRITE,2,raw_fmov_mr,(MEMW m, FR r))

LOWFUNC(NONE,WRITE,2,raw_fmov_mr_drop,(MEMW m, FR r))
{
    make_tos(r);
    emit_byte(0xdd);
    emit_byte(0x1d);
    emit_long(m);
    live.onstack[live.tos]=-1;
    live.tos--;
    live.spos[r]=-2;
}
LENDFUNC(NONE,WRITE,2,raw_fmov_mr,(MEMW m, FR r))

LOWFUNC(NONE,READ,2,raw_fmov_rm,(FW r, MEMR m))
{
    emit_byte(0xdd);
    emit_byte(0x05);
    emit_long(m);
    tos_make(r);
}
LENDFUNC(NONE,READ,2,raw_fmov_rm,(FW r, MEMR m))

LOWFUNC(NONE,READ,2,raw_fmovi_rm,(FW r, MEMR m))
{
    emit_byte(0xdb);
    emit_byte(0x05);
    emit_long(m);
    tos_make(r);
}
LENDFUNC(NONE,READ,2,raw_fmovi_rm,(FW r, MEMR m))

LOWFUNC(NONE,WRITE,2,raw_fmovi_mr,(MEMW m, FR r))
{
    make_tos(r);
    emit_byte(0xdb);
    emit_byte(0x15);
    emit_long(m);
}
LENDFUNC(NONE,WRITE,2,raw_fmovi_mr,(MEMW m, FR r))

LOWFUNC(NONE,READ,2,raw_fmovs_rm,(FW r, MEMR m))
{
    emit_byte(0xd9);
    emit_byte(0x05);
    emit_long(m);
    tos_make(r);
}
LENDFUNC(NONE,READ,2,raw_fmovs_rm,(FW r, MEMR m))

LOWFUNC(NONE,WRITE,2,raw_fmovs_mr,(MEMW m, FR r))
{
    make_tos(r);
    emit_byte(0xd9);
    emit_byte(0x15);
    emit_long(m);
}
LENDFUNC(NONE,WRITE,2,raw_fmovs_mr,(MEMW m, FR r))

LOWFUNC(NONE,WRITE,2,raw_fmov_ext_mr,(MEMW m, FR r))
{
    int rs;

    /* Stupid x87 can't write a long double to mem without popping the 
       stack! */
    usereg(r);
    rs=stackpos(r);
    emit_byte(0xd9);     /* Get a copy to the top of stack */
    emit_byte(0xc0+rs);

    emit_byte(0xdb);  /* store and pop it */
    emit_byte(0x3d);
    emit_long(m);
}
LENDFUNC(NONE,WRITE,2,raw_fmov_ext_mr,(MEMW m, FR r))

LOWFUNC(NONE,WRITE,2,raw_fmov_ext_mr_drop,(MEMW m, FR r))
{
    int rs;

    make_tos(r);
    emit_byte(0xdb);  /* store and pop it */
    emit_byte(0x3d);
    emit_long(m);
    live.onstack[live.tos]=-1;
    live.tos--;
    live.spos[r]=-2;
}
LENDFUNC(NONE,WRITE,2,raw_fmov_ext_mr,(MEMW m, FR r))

LOWFUNC(NONE,READ,2,raw_fmov_ext_rm,(FW r, MEMR m))
{
    emit_byte(0xdb);
    emit_byte(0x2d);
    emit_long(m);
    tos_make(r);
}
LENDFUNC(NONE,READ,2,raw_fmov_ext_rm,(FW r, MEMR m))

LOWFUNC(NONE,NONE,1,raw_fmov_pi,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xeb);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_pi,(FW r))

LOWFUNC(NONE,NONE,1,raw_fmov_log10_2,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xec);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_log10_2,(FW r))

LOWFUNC(NONE,NONE,1,raw_fmov_log2_e,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xea);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_log2_e,(FW r))

LOWFUNC(NONE,NONE,1,raw_fmov_loge_2,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xed);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_loge_2,(FW r))

LOWFUNC(NONE,NONE,1,raw_fmov_1,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xe8);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_1,(FW r))

LOWFUNC(NONE,NONE,1,raw_fmov_0,(FW r))
{
    emit_byte(0xd9);
    emit_byte(0xee);
    tos_make(r);
}
LENDFUNC(NONE,NONE,1,raw_fmov_0,(FW r))

LOWFUNC(NONE,NONE,2,raw_fmov_rr,(FW d, FR s))
{
    int ds;

    usereg(s);
    ds=stackpos(s);
    if (ds==0 && live.spos[d]>=0) {
        /* source is on top of stack, and we already have the dest */
        int dd=stackpos(d);
        emit_byte(0xdd);
        emit_byte(0xd0+dd);
    }
    else {
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source on tos */
        tos_make(d); /* store to destination, pop if necessary */
    }
}
LENDFUNC(NONE,NONE,2,raw_fmov_rr,(FW d, FR s))

LOWFUNC(NONE,READ,4,raw_fldcw_m_indexed,(R4 index, IMM base))
{
    emit_byte(0xd9);
    emit_byte(0xa8+index);
    emit_long(base);
}
LENDFUNC(NONE,READ,4,raw_fldcw_m_indexed,(R4 index, IMM base))


LOWFUNC(NONE,NONE,2,raw_fsqrt_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xfa); /* take square root */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xfa); /* take square root */
    }   
}
LENDFUNC(NONE,NONE,2,raw_fsqrt_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fabs_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xe1); /* take fabs */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xe1); /* take fabs */
    }   
}
LENDFUNC(NONE,NONE,2,raw_fabs_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_frndint_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xfc); /* take frndint */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xfc); /* take frndint */
    }   
}
LENDFUNC(NONE,NONE,2,raw_frndint_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fcos_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xff); /* take cos */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xff); /* take cos */
    }   
}
LENDFUNC(NONE,NONE,2,raw_fcos_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fsin_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xfe); /* take sin */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xfe); /* take sin */
    }   
}
LENDFUNC(NONE,NONE,2,raw_fsin_rr,(FW d, FR s))

double one=1;
LOWFUNC(NONE,NONE,2,raw_ftwotox_rr,(FW d, FR s))
{
    int ds;

    usereg(s);
    ds=stackpos(s);
    emit_byte(0xd9);
    emit_byte(0xc0+ds); /* duplicate source */

    emit_byte(0xd9);
    emit_byte(0xc0);  /* duplicate top of stack. Now up to 8 high */
    emit_byte(0xd9);
    emit_byte(0xfc);  /* rndint */
    emit_byte(0xd9);
    emit_byte(0xc9);  /* swap top two elements */
    emit_byte(0xd8);
    emit_byte(0xe1);  /* subtract rounded from original */
    emit_byte(0xd9);
    emit_byte(0xf0);  /* f2xm1 */
    emit_byte(0xdc);
    emit_byte(0x05);
    emit_long((uae_u32)&one);  /* Add '1' without using extra stack space */
    emit_byte(0xd9);
    emit_byte(0xfd);  /* and scale it */
    emit_byte(0xdd);
    emit_byte(0xd9);  /* take he rounded value off */
    tos_make(d); /* store to destination */
}
LENDFUNC(NONE,NONE,2,raw_ftwotox_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fetox_rr,(FW d, FR s))
{
    int ds;

    usereg(s);
    ds=stackpos(s);
    emit_byte(0xd9);
    emit_byte(0xc0+ds); /* duplicate source */
    emit_byte(0xd9);
    emit_byte(0xea);   /* fldl2e */
    emit_byte(0xde);
    emit_byte(0xc9);  /* fmulp --- multiply source by log2(e) */

    emit_byte(0xd9);
    emit_byte(0xc0);  /* duplicate top of stack. Now up to 8 high */
    emit_byte(0xd9);
    emit_byte(0xfc);  /* rndint */
    emit_byte(0xd9);
    emit_byte(0xc9);  /* swap top two elements */
    emit_byte(0xd8);
    emit_byte(0xe1);  /* subtract rounded from original */
    emit_byte(0xd9);
    emit_byte(0xf0);  /* f2xm1 */
    emit_byte(0xdc);
    emit_byte(0x05);
    emit_long((uae_u32)&one);  /* Add '1' without using extra stack space */
    emit_byte(0xd9);
    emit_byte(0xfd);  /* and scale it */
    emit_byte(0xdd);
    emit_byte(0xd9);  /* take he rounded value off */
    tos_make(d); /* store to destination */
}
LENDFUNC(NONE,NONE,2,raw_fetox_rr,(FW d, FR s))
 
LOWFUNC(NONE,NONE,2,raw_flog2_rr,(FW d, FR s))
{
    int ds;

    usereg(s);
    ds=stackpos(s);
    emit_byte(0xd9);
    emit_byte(0xc0+ds); /* duplicate source */
    emit_byte(0xd9);
    emit_byte(0xe8); /* push '1' */
    emit_byte(0xd9);
    emit_byte(0xc9); /* swap top two */
    emit_byte(0xd9);
    emit_byte(0xf1); /* take 1*log2(x) */
    tos_make(d); /* store to destination */
}
LENDFUNC(NONE,NONE,2,raw_flog2_rr,(FW d, FR s))


LOWFUNC(NONE,NONE,2,raw_fneg_rr,(FW d, FR s))
{
    int ds;

    if (d!=s) {
        usereg(s);
        ds=stackpos(s);
        emit_byte(0xd9);
        emit_byte(0xc0+ds); /* duplicate source */
        emit_byte(0xd9);
        emit_byte(0xe0); /* take fchs */
        tos_make(d); /* store to destination */
    }
    else {
        make_tos(d);
        emit_byte(0xd9);
        emit_byte(0xe0); /* take fchs */
    }   
}
LENDFUNC(NONE,NONE,2,raw_fneg_rr,(FW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fadd_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    if (live.spos[s]==live.tos) {
        /* Source is on top of stack */
        ds=stackpos(d);
        emit_byte(0xdc);
        emit_byte(0xc0+ds); /* add source to dest*/
    }
    else {
        make_tos(d);
        ds=stackpos(s);
        
        emit_byte(0xd8);
        emit_byte(0xc0+ds); /* add source to dest*/
    }
}
LENDFUNC(NONE,NONE,2,raw_fadd_rr,(FRW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fsub_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    if (live.spos[s]==live.tos) {
        /* Source is on top of stack */
        ds=stackpos(d);
        emit_byte(0xdc);
        emit_byte(0xe8+ds); /* sub source from dest*/
    }
    else {
        make_tos(d);
        ds=stackpos(s);
        
        emit_byte(0xd8);
        emit_byte(0xe0+ds); /* sub src from dest */
    }
}
LENDFUNC(NONE,NONE,2,raw_fsub_rr,(FRW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fcmp_rr,(FR d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    make_tos(d);
    ds=stackpos(s);

    emit_byte(0xdd);
    emit_byte(0xe0+ds); /* cmp dest with source*/
}
LENDFUNC(NONE,NONE,2,raw_fcmp_rr,(FR d, FR s))

LOWFUNC(NONE,NONE,2,raw_fmul_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    if (live.spos[s]==live.tos) {
        /* Source is on top of stack */
        ds=stackpos(d);
        emit_byte(0xdc);
        emit_byte(0xc8+ds); /* mul dest by source*/
    }
    else {
        make_tos(d);
        ds=stackpos(s);
        
        emit_byte(0xd8);
        emit_byte(0xc8+ds); /* mul dest by source*/
    }
}
LENDFUNC(NONE,NONE,2,raw_fmul_rr,(FRW d, FR s))

LOWFUNC(NONE,NONE,2,raw_fdiv_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    if (live.spos[s]==live.tos) {
        /* Source is on top of stack */
        ds=stackpos(d);
        emit_byte(0xdc);
        emit_byte(0xf8+ds); /* div dest by source */
    }
    else {
        make_tos(d);
        ds=stackpos(s);
        
        emit_byte(0xd8);
        emit_byte(0xf0+ds); /* div dest by source*/
    }
}
LENDFUNC(NONE,NONE,2,raw_fdiv_rr,(FRW d, FR s))

LOWFUNC(NONE,NONE,2,raw_frem_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    make_tos2(d,s);
    ds=stackpos(s);

    if (ds!=1) {
        printf("Failed horribly in raw_frem_rr! ds is %d\n",ds);
        abort();
    }
    emit_byte(0xd9);
    emit_byte(0xf8); /* take rem from dest by source */
}
LENDFUNC(NONE,NONE,2,raw_frem_rr,(FRW d, FR s))

LOWFUNC(NONE,NONE,2,raw_frem1_rr,(FRW d, FR s))
{
    int ds;

    usereg(s);
    usereg(d);
    
    make_tos2(d,s);
    ds=stackpos(s);

    if (ds!=1) {
        printf("Failed horribly in raw_frem1_rr! ds is %d\n",ds);
        abort();
    }
    emit_byte(0xd9);
    emit_byte(0xf5); /* take rem1 from dest by source */
}
LENDFUNC(NONE,NONE,2,raw_frem1_rr,(FRW d, FR s))


LOWFUNC(NONE,NONE,1,raw_ftst_r,(FR r))
{
    make_tos(r);
    emit_byte(0xd9);  /* ftst */
    emit_byte(0xe4);
}
LENDFUNC(NONE,NONE,1,raw_ftst_r,(FR r))

/* %eax register is clobbered if target processor doesn't support fucomi */
#define FFLAG_NREG_CLOBBER_CONDITION !have_cmov
#define FFLAG_NREG EAX_INDEX

static __inline__ void raw_fflags_into_flags(int r)
{
    int p;

    usereg(r);
    p=stackpos(r);

    emit_byte(0xd9);
    emit_byte(0xee); /* Push 0 */
    emit_byte(0xd9);
    emit_byte(0xc9+p); /* swap top two around */
        if (have_cmov) {
                // gb-- fucomi is for P6 cores only, not K6-2 then...
        emit_byte(0xdb);
        emit_byte(0xe9+p); /* fucomi them */
        }
        else {
                emit_byte(0xdd);
                emit_byte(0xe1+p); /* fucom them */
                emit_byte(0x9b);
                emit_byte(0xdf);
                emit_byte(0xe0); /* fstsw ax */
                raw_sahf(0); /* sahf */
        }
    emit_byte(0xdd);
    emit_byte(0xd9+p);  /* store value back, and get rid of 0 */
}
Revision:	1.12
Committed:	2003-03-17T22:37:55Z (21 years, 6 months ago) by gbeauche
Branch:	MAIN
Changes since 1.11:	+1 -1 lines
Log Message:	clobber "cc" for flags, not "flags". Thanks Milan for noticing it.