/*
 * 86Box    A hypervisor and IBM PC system emulator that specializes in
 *          running old operating systems and software designed for IBM
 *          PC systems and compatibles from 1981 through fairly recent
 *          system designs based on the PCI bus.
 *
 *          This file is part of the 86Box distribution.
 *
 *          x87 FPU instructions core.
 *
 *
 *
 * Authors: Sarah Walker, <https://pcem-emulator.co.uk/>
 *          Miran Grca, <mgrca8@gmail.com>
 *
 *          Copyright 2008-2019 Sarah Walker.
 *          Copyright 2016-2019 Miran Grca.
 */
static int
opFILDiw_a16(UNUSED(uint32_t fetchdat))
{
    int16_t temp;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    temp = geteaw();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) temp);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_16) : (x87_timings.fild_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_16) : (x87_concurrency.fild_16 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFILDiw_a32(uint32_t fetchdat)
{
    int16_t temp;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    temp = geteaw();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) temp);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_16) : (x87_timings.fild_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_16) : (x87_concurrency.fild_16 * cpu_multi));
    return 0;
}
#endif

static int
opFISTiw_a16(UNUSED(uint32_t fetchdat))
{
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteaw(x87_fround16(ST(0)));
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_16) : (x87_timings.fist_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_16) : (x87_concurrency.fist_16 * cpu_multi));
    return cpu_state.abrt;
}
#ifndef FPU_8087
static int
opFISTiw_a32(uint32_t fetchdat)
{
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteaw(x87_fround16(ST(0)));
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_16) : (x87_timings.fist_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_16) : (x87_concurrency.fist_16 * cpu_multi));
    return cpu_state.abrt;
}
#endif

static int
opFISTPiw_a16(UNUSED(uint32_t fetchdat))
{
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteaw(x87_fround16(ST(0)));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_16) : (x87_timings.fist_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_16) : (x87_concurrency.fist_16 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFISTPiw_a32(uint32_t fetchdat)
{
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteaw(x87_fround16(ST(0)));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_16) : (x87_timings.fist_16 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_16) : (x87_concurrency.fist_16 * cpu_multi));
    return 0;
}
#endif

static int
opFILDiq_a16(UNUSED(uint32_t fetchdat))
{
    int64_t temp64;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    temp64 = geteaq();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) temp64);
    cpu_state.MM[cpu_state.TOP & 7].q = temp64;
    FP_TAG_DEFAULT;

    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_64) : (x87_timings.fild_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_64) : (x87_concurrency.fild_64 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFILDiq_a32(uint32_t fetchdat)
{
    int64_t temp64;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    temp64 = geteaq();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) temp64);
    cpu_state.MM[cpu_state.TOP & 7].q = temp64;
    FP_TAG_DEFAULT;

    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_64) : (x87_timings.fild_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_64) : (x87_concurrency.fild_64 * cpu_multi));
    return 0;
}
#endif

static int
FBLD_a16(UNUSED(uint32_t fetchdat))
{
    uint16_t              load_reg_hi = 0xffff;
    uint64_t              load_reg_lo = BX_CONST64(0xC000000000000000);
    int64_t               load_val = 0ULL;
    uint64_t              power;
    int                   sign;

    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    load_reg_lo = readmemq(easeg, cpu_state.eaaddr);
    load_reg_hi = readmemw(easeg, cpu_state.eaaddr + 8);
    if (cpu_state.abrt)
        return 1;
    clear_C1();
    sign     = (load_reg_hi & 0x8000) != 0;
    load_val = 0ULL;
    power    = 1;
    for (int i = 0; i < 16; i++) {
        load_val += ((uint64_t) (load_reg_lo & 0xf)) * power;
        load_reg_lo >>= 4;
        power *= 10;
    }
    for (int i = 0; i < 2; i++) {
        load_val += ((uint64_t) (load_reg_hi & 0xf)) * power;
        load_reg_hi >>= 4;
        power *= 10;
    }
    if (sign)
        load_val = -load_val;
    x87_push((double) load_val);
    cpu_state.MM[cpu_state.TOP & 7].q = load_val;
    FP_TAG_DEFAULT;

    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_64) : (x87_timings.fild_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_64) : (x87_concurrency.fild_64 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
FBLD_a32(uint32_t fetchdat)
{
    uint16_t              load_reg_hi = 0xffff;
    uint64_t              load_reg_lo = BX_CONST64(0xC000000000000000);
    int64_t               load_val = 0ULL;
    uint64_t              power;
    int                   sign;

    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    load_reg_lo = readmemq(easeg, cpu_state.eaaddr);
    load_reg_hi = readmemw(easeg, cpu_state.eaaddr + 8);
    if (cpu_state.abrt)
        return 1;
    clear_C1();
    sign     = (load_reg_hi & 0x8000) != 0;
    load_val = 0ULL;
    power    = 1;
    for (int i = 0; i < 16; i++) {
        load_val += ((uint64_t) (load_reg_lo & 0xf)) * power;
        load_reg_lo >>= 4;
        power *= 10;
    }
    for (int i = 0; i < 2; i++) {
        load_val += ((uint64_t) (load_reg_hi & 0xf)) * power;
        load_reg_hi >>= 4;
        power *= 10;
    }
    if (sign)
        load_val = -load_val;
    x87_push((double) load_val);
    cpu_state.MM[cpu_state.TOP & 7].q = load_val;
    FP_TAG_DEFAULT;

    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_64) : (x87_timings.fild_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_64) : (x87_concurrency.fild_64 * cpu_multi));
    return 0;
}
#endif

static int
FBSTP_a16(UNUSED(uint32_t fetchdat))
{
    double  dt;
    double tempd;
    int    c;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    tempd = ST(0);
    if (tempd < 0.0)
        tempd = -tempd;
    for (c = 0; c < 9; c++) {
        dt = floor(fmod(tempd, 10.0));
        uint8_t tempc = (uint8_t) dt;
        tempd -= floor(fmod(tempd, 10.0));
        tempd /= 10.0;
        dt = floor(fmod(tempd, 10.0));
        tempc |= ((uint8_t) dt) << 4;
        tempd -= floor(fmod(tempd, 10.0));
        tempd /= 10.0;
        writememb(easeg, cpu_state.eaaddr + c, tempc);
    }
    dt = floor(fmod(tempd, 10.0));
    tempc = (uint8_t) dt;
    if (ST(0) < 0.0)
        tempc |= 0x80;
    writememb(easeg, cpu_state.eaaddr + 9, tempc);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fbstp) : (x87_timings.fbstp * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fbstp) : (x87_concurrency.fbstp * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
FBSTP_a32(uint32_t fetchdat)
{
    double tempd;
    int    c;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    tempd = ST(0);
    if (tempd < 0.0)
        tempd = -tempd;
    for (c = 0; c < 9; c++) {
        uint8_t tempc = (uint8_t) floor(fmod(tempd, 10.0));
        tempd -= floor(fmod(tempd, 10.0));
        tempd /= 10.0;
        tempc |= ((uint8_t) floor(fmod(tempd, 10.0))) << 4;
        tempd -= floor(fmod(tempd, 10.0));
        tempd /= 10.0;
        writememb(easeg, cpu_state.eaaddr + c, tempc);
    }
    tempc = (uint8_t) floor(fmod(tempd, 10.0));
    if (ST(0) < 0.0)
        tempc |= 0x80;
    writememb(easeg, cpu_state.eaaddr + 9, tempc);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fbstp) : (x87_timings.fbstp * cpu_multi));
    return 0;
}
#endif

static int
FISTPiq_a16(UNUSED(uint32_t fetchdat))
{
    int64_t temp64;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    if (cpu_state.tag[cpu_state.TOP & 7] & TAG_UINT64)
        temp64 = cpu_state.MM[cpu_state.TOP & 7].q;
    else
        temp64 = x87_fround(ST(0));
    seteaq(temp64);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_64) : (x87_timings.fist_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_64) : (x87_concurrency.fist_64 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
FISTPiq_a32(uint32_t fetchdat)
{
    int64_t temp64;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    if (cpu_state.tag[cpu_state.TOP & 7] & TAG_UINT64)
        temp64 = cpu_state.MM[cpu_state.TOP & 7].q;
    else
        temp64 = x87_fround(ST(0));
    seteaq(temp64);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_64) : (x87_timings.fist_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_64) : (x87_concurrency.fist_64 * cpu_multi));
    return 0;
}
#endif

static int
opFILDil_a16(UNUSED(uint32_t fetchdat))
{
    int32_t templ;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    templ = geteal();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) templ);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_32) : (x87_timings.fild_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_32) : (x87_concurrency.fild_32 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFILDil_a32(uint32_t fetchdat)
{
    int32_t templ;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    templ = geteal();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) templ);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fild_32) : (x87_timings.fild_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fild_32) : (x87_concurrency.fild_32 * cpu_multi));
    return 0;
}
#endif

static int
opFISTil_a16(UNUSED(uint32_t fetchdat))
{
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteal(x87_fround32(ST(0)));
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_32) : (x87_timings.fist_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_32) : (x87_concurrency.fist_32 * cpu_multi));
    return cpu_state.abrt;
}
#ifndef FPU_8087
static int
opFISTil_a32(uint32_t fetchdat)
{
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteal(x87_fround32(ST(0)));
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_32) : (x87_timings.fist_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_32) : (x87_concurrency.fist_32 * cpu_multi));
    return cpu_state.abrt;
}
#endif

static int
opFISTPil_a16(UNUSED(uint32_t fetchdat))
{
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteal(x87_fround32(ST(0)));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_32) : (x87_timings.fist_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_32) : (x87_concurrency.fist_32 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFISTPil_a32(uint32_t fetchdat)
{
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    seteal(x87_fround32(ST(0)));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fist_32) : (x87_timings.fist_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fist_32) : (x87_concurrency.fist_32 * cpu_multi));
    return 0;
}
#endif

static int
opFLDe_a16(UNUSED(uint32_t fetchdat))
{
    double t;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    t = x87_ld80();
    if (cpu_state.abrt)
        return 1;
    x87_push(t);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_80) : (x87_timings.fld_80 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_80) : (x87_concurrency.fld_80 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFLDe_a32(uint32_t fetchdat)
{
    double t;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    t = x87_ld80();
    if (cpu_state.abrt)
        return 1;
    x87_push(t);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_80) : (x87_timings.fld_80 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_80) : (x87_concurrency.fld_80 * cpu_multi));
    return 0;
}
#endif

static int
opFSTPe_a16(UNUSED(uint32_t fetchdat))
{
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    x87_st80(ST(0));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_80) : (x87_timings.fld_80 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_80) : (x87_concurrency.fld_80 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFSTPe_a32(uint32_t fetchdat)
{
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    x87_st80(ST(0));
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_80) : (x87_timings.fld_80 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_80) : (x87_concurrency.fld_80 * cpu_multi));
    return 0;
}
#endif

static int
opFLDd_a16(UNUSED(uint32_t fetchdat))
{
    x87_td t;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    t.i = geteaq();
    if (cpu_state.abrt)
        return 1;
    x87_push(t.d);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_64) : (x87_timings.fld_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_64) : (x87_concurrency.fld_64 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFLDd_a32(uint32_t fetchdat)
{
    x87_td t;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    t.i = geteaq();
    if (cpu_state.abrt)
        return 1;
    x87_push(t.d);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fld_64) : (x87_timings.fld_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fld_64) : (x87_concurrency.fld_64 * cpu_multi));
    return 0;
}
#endif

static int
opFSTd_a16(UNUSED(uint32_t fetchdat))
{
    x87_td t;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    t.d = ST(0);
    seteaq(t.i);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_64) : (x87_timings.fst_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_64) : (x87_concurrency.fst_64 * cpu_multi));
    return cpu_state.abrt;
}
#ifndef FPU_8087
static int
opFSTd_a32(uint32_t fetchdat)
{
    x87_td t;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    t.d = ST(0);
    seteaq(t.i);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_64) : (x87_timings.fst_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_64) : (x87_concurrency.fst_64 * cpu_multi));
    return cpu_state.abrt;
}
#endif

static int
opFSTPd_a16(UNUSED(uint32_t fetchdat))
{
    x87_td t;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    t.d = ST(0);
    seteaq(t.i);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_64) : (x87_timings.fst_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_64) : (x87_concurrency.fst_64 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFSTPd_a32(uint32_t fetchdat)
{
    x87_td t;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    t.d = ST(0);
    seteaq(t.i);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_64) : (x87_timings.fst_64 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_64) : (x87_concurrency.fst_64 * cpu_multi));
    return 0;
}
#endif

static int
opFLDs_a16(UNUSED(uint32_t fetchdat))
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    ts.i = geteal();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) ts.s);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFLDs_a32(uint32_t fetchdat)
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_READ(cpu_state.ea_seg);
    ts.i = geteal();
    if (cpu_state.abrt)
        return 1;
    x87_push((double) ts.s);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return 0;
}
#endif

static int
opFSTs_a16(UNUSED(uint32_t fetchdat))
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    ts.s = (float) ST(0);
    seteal(ts.i);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return cpu_state.abrt;
}
#ifndef FPU_8087
static int
opFSTs_a32(uint32_t fetchdat)
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    ts.s = (float) ST(0);
    seteal(ts.i);
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return cpu_state.abrt;
}
#endif

static int
opFSTPs_a16(UNUSED(uint32_t fetchdat))
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_16(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    ts.s = (float) ST(0);
    seteal(ts.i);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return 0;
}
#ifndef FPU_8087
static int
opFSTPs_a32(uint32_t fetchdat)
{
    x87_ts ts;
    FP_ENTER();
    fetch_ea_32(fetchdat);
    SEG_CHECK_WRITE(cpu_state.ea_seg);
    ts.s = (float) ST(0);
    seteal(ts.i);
    if (cpu_state.abrt)
        return 1;
    x87_pop();
    CLOCK_CYCLES_FPU((fpu_type >= FPU_487SX) ? (x87_timings.fst_32) : (x87_timings.fst_32 * cpu_multi));
    CONCURRENCY_CYCLES((fpu_type >= FPU_487SX) ? (x87_concurrency.fst_32) : (x87_concurrency.fst_32 * cpu_multi));
    return 0;
}
#endif