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/* Definitions of target machine for GNU compiler, for IBM S/390

   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   Contributed by Hartmut Penner (hpenner@de.ibm.com) and

                  Ulrich Weigand (uweigand@de.ibm.com).

This file is part of GCC.

GCC 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, or (at your option) any later

version.

GCC 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 GCC; see the file COPYING.  If not, write to the Free

Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA

02110-1301, USA.  */

#ifdef L_fixunstfdi

#define EXPD(fp)           (((fp.l.i[0]) >> 16) & 0x7FFF)

#define EXPONENT_BIAS      16383

#define MANTISSA_BITS      112

#define PRECISION          (MANTISSA_BITS + 1)

#define SIGNBIT            0x80000000

#define SIGND(fp)          ((fp.l.i[0]) & SIGNBIT)

#define MANTD_HIGH_LL(fp)  ((fp.ll[0] & HIGH_LL_FRAC_MASK) | HIGH_LL_UNIT_BIT)

#define MANTD_LOW_LL(fp)   (fp.ll[1])

#define FRACD_ZERO_P(fp)   (!fp.ll[1] && !(fp.ll[0] & HIGH_LL_FRAC_MASK))

#define HIGH_LL_FRAC_BITS  48

#define HIGH_LL_UNIT_BIT   ((UDItype_x)1 << HIGH_LL_FRAC_BITS)

#define HIGH_LL_FRAC_MASK  (HIGH_LL_UNIT_BIT - 1)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union double_long {

  long double d;

  struct {

      SItype_x i[4]; /* 32 bit parts: 0 upper ... 3 lowest */

    } l;

  UDItype_x ll[2];   /* 64 bit parts: 0 upper, 1 lower */

};

UDItype_x __fixunstfdi (long double a1);

/* convert double to unsigned int */

UDItype_x

__fixunstfdi (long double a1)

{

    register union double_long dl1;

    register int exp;

    register UDItype_x l;

    dl1.d = a1;

    /* +/- 0, denormalized, negative */

    if (!EXPD (dl1) || SIGND(dl1))

      return 0;

    /* The exponent - considered the binary point at the right end of

       the mantissa.  */

    exp = EXPD (dl1) - EXPONENT_BIAS - MANTISSA_BITS;

    /* number < 1: If the mantissa would need to be right-shifted more bits than

       its size (plus the implied one bit on the left) the result would be

       zero.  */

    if (exp <= -PRECISION)

      return 0;

    /* NaN: All exponent bits set and a non-zero fraction.  */

    if ((EXPD(dl1) == 0x7fff) && !FRACD_ZERO_P (dl1))

      return 0x0ULL;

    /* If the upper ll part of the mantissa isn't

       zeroed out after shifting the number would be to large.  */

    if (exp >= -HIGH_LL_FRAC_BITS)

      return 0xFFFFFFFFFFFFFFFFULL;

    exp += HIGH_LL_FRAC_BITS + 1;

    l = MANTD_LOW_LL (dl1) >> (HIGH_LL_FRAC_BITS + 1)

        | MANTD_HIGH_LL (dl1) << (64 - (HIGH_LL_FRAC_BITS + 1));

    return l >> -exp;

}

#define __fixunstfdi ___fixunstfdi

#endif

#undef L_fixunstfdi

#ifdef L_fixtfdi

#define EXPD(fp)           (((fp.l.i[0]) >> 16) & 0x7FFF)

#define EXPONENT_BIAS      16383

#define MANTISSA_BITS      112

#define PRECISION          (MANTISSA_BITS + 1)

#define SIGNBIT            0x80000000

#define SIGND(fp)          ((fp.l.i[0]) & SIGNBIT)

#define MANTD_HIGH_LL(fp)  ((fp.ll[0] & HIGH_LL_FRAC_MASK) | HIGH_LL_UNIT_BIT)

#define MANTD_LOW_LL(fp)   (fp.ll[1])

#define FRACD_ZERO_P(fp)   (!fp.ll[1] && !(fp.ll[0] & HIGH_LL_FRAC_MASK))

#define HIGH_LL_FRAC_BITS  48

#define HIGH_LL_UNIT_BIT   ((UDItype_x)1 << HIGH_LL_FRAC_BITS)

#define HIGH_LL_FRAC_MASK  (HIGH_LL_UNIT_BIT - 1)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union double_long {

  long double d;

  struct {

      SItype_x i[4]; /* 32 bit parts: 0 upper ... 3 lowest */

    } l;

  DItype_x ll[2];   /* 64 bit parts: 0 upper, 1 lower */

};

DItype_x __fixtfdi (long double a1);

/* convert double to unsigned int */

DItype_x

__fixtfdi (long double a1)

{

    register union double_long dl1;

    register int exp;

    register UDItype_x l;

    dl1.d = a1;

    /* +/- 0, denormalized */

    if (!EXPD (dl1))

      return 0;

    /* The exponent - considered the binary point at the right end of

       the mantissa.  */

    exp = EXPD (dl1) - EXPONENT_BIAS - MANTISSA_BITS;

    /* number < 1: If the mantissa would need to be right-shifted more bits than

       its size the result would be zero.  */

    if (exp <= -PRECISION)

      return 0;

    /* NaN: All exponent bits set and a non-zero fraction.  */

    if ((EXPD(dl1) == 0x7fff) && !FRACD_ZERO_P (dl1))

      return 0x8000000000000000ULL;

    /* If the upper ll part of the mantissa isn't

       zeroed out after shifting the number would be to large.  */

    if (exp >= -HIGH_LL_FRAC_BITS)

      {

        l = (long long)1 << 63; /* long int min */

        return SIGND (dl1) ? l : l - 1;

      }

    /* The extra bit is needed for the sign bit.  */

    exp += HIGH_LL_FRAC_BITS + 1;

    l = MANTD_LOW_LL (dl1) >> (HIGH_LL_FRAC_BITS + 1)

        | MANTD_HIGH_LL (dl1) << (64 - (HIGH_LL_FRAC_BITS + 1));

    return SIGND (dl1) ? -(l >> -exp) : l >> -exp;

}

#define __fixtfdi ___fixtfdi

#endif

#undef L_fixtfdi

#ifdef L_fixunsdfdi

#define EXPD(fp)        (((fp.l.upper) >> 20) & 0x7FF)

#define EXCESSD         1022

#define SIGNBIT         0x80000000

#define SIGND(fp)       ((fp.l.upper) & SIGNBIT)

#define MANTD_LL(fp)    ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)

#define FRACD_LL(fp)    (fp.ll & (HIDDEND_LL-1))

#define HIDDEND_LL      ((UDItype_x)1 << 52)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union double_long {

    double d;

    struct {

      SItype_x upper;

      USItype_x lower;

    } l;

    UDItype_x ll;

};

UDItype_x __fixunsdfdi (double a1);

/* convert double to unsigned int */

UDItype_x

__fixunsdfdi (double a1)

{

    register union double_long dl1;

    register int exp;

    register UDItype_x l;

    dl1.d = a1;

    /* +/- 0, denormalized, negative */

    if (!EXPD (dl1) || SIGND(dl1))

      return 0;

    exp = EXPD (dl1) - EXCESSD - 53;

    /* number < 1 */

    if (exp < -53)

      return 0;

    /* NaN */

    if ((EXPD(dl1) == 0x7ff) && (FRACD_LL(dl1) != 0)) /* NaN */

      return 0x0ULL;

    /* Number big number & + inf */

    if (exp >= 12) {

      return 0xFFFFFFFFFFFFFFFFULL;

    }

    l = MANTD_LL(dl1);

    /* shift down until exp < 12 or l = 0 */

    if (exp > 0)

      l <<= exp;

    else

      l >>= -exp;

    return l;

}

#define __fixunsdfdi ___fixunsdfdi

#endif

#undef L_fixunsdfdi

#ifdef L_fixdfdi

#define EXPD(fp)        (((fp.l.upper) >> 20) & 0x7FF)

#define EXCESSD         1022

#define SIGNBIT         0x80000000

#define SIGND(fp)       ((fp.l.upper) & SIGNBIT)

#define MANTD_LL(fp)    ((fp.ll & (HIDDEND_LL-1)) | HIDDEND_LL)

#define FRACD_LL(fp)    (fp.ll & (HIDDEND_LL-1))

#define HIDDEND_LL      ((UDItype_x)1 << 52)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union double_long {

    double d;

    struct {

      SItype_x upper;

      USItype_x lower;

    } l;

    UDItype_x ll;

};

DItype_x __fixdfdi (double a1);

/* convert double to int */

DItype_x

__fixdfdi (double a1)

{

    register union double_long dl1;

    register int exp;

    register DItype_x l;

    dl1.d = a1;

    /* +/- 0, denormalized */

    if (!EXPD (dl1))

      return 0;

    exp = EXPD (dl1) - EXCESSD - 53;

    /* number < 1 */

    if (exp < -53)

      return 0;

    /* NaN */

    if ((EXPD(dl1) == 0x7ff) && (FRACD_LL(dl1) != 0)) /* NaN */

      return 0x8000000000000000ULL;

    /* Number big number & +/- inf */

    if (exp >= 11) {

        l = (long long)1<<63;

        if (!SIGND(dl1))

            l--;

        return l;

    }

    l = MANTD_LL(dl1);

    /* shift down until exp < 12 or l = 0 */

    if (exp > 0)

      l <<= exp;

    else

      l >>= -exp;

    return (SIGND (dl1) ? -l : l);

}

#define __fixdfdi ___fixdfdi

#endif

#undef L_fixdfdi

#ifdef L_fixunssfdi

#define EXP(fp)         (((fp.l) >> 23) & 0xFF)

#define EXCESS          126

#define SIGNBIT         0x80000000

#define SIGN(fp)        ((fp.l) & SIGNBIT)

#define HIDDEN          (1 << 23)

#define MANT(fp)        (((fp.l) & 0x7FFFFF) | HIDDEN)

#define FRAC(fp)        ((fp.l) & 0x7FFFFF)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union float_long

  {

    float f;

    USItype_x l;

  };

UDItype_x __fixunssfdi (float a1);

/* convert float to unsigned int */

UDItype_x

__fixunssfdi (float a1)

{

    register union float_long fl1;

    register int exp;

    register UDItype_x l;

    fl1.f = a1;

    /* +/- 0, denormalized, negative */

    if (!EXP (fl1) || SIGN(fl1))

      return 0;

    exp = EXP (fl1) - EXCESS - 24;

    /* number < 1 */

    if (exp < -24)

      return 0;

    /* NaN */

    if ((EXP(fl1) == 0xff) && (FRAC(fl1) != 0)) /* NaN */

      return 0x0ULL;

    /* Number big number & + inf */

    if (exp >= 41) {

      return 0xFFFFFFFFFFFFFFFFULL;

    }

    l = MANT(fl1);

    if (exp > 0)

      l <<= exp;

    else

      l >>= -exp;

    return l;

}

#define __fixunssfdi ___fixunssfdi

#endif

#undef L_fixunssfdi

#ifdef L_fixsfdi

#define EXP(fp)         (((fp.l) >> 23) & 0xFF)

#define EXCESS          126

#define SIGNBIT         0x80000000

#define SIGN(fp)        ((fp.l) & SIGNBIT)

#define HIDDEN          (1 << 23)

#define MANT(fp)        (((fp.l) & 0x7FFFFF) | HIDDEN)

#define FRAC(fp)        ((fp.l) & 0x7FFFFF)

typedef int DItype_x __attribute__ ((mode (DI)));

typedef unsigned int UDItype_x __attribute__ ((mode (DI)));

typedef int SItype_x __attribute__ ((mode (SI)));

typedef unsigned int USItype_x __attribute__ ((mode (SI)));

union float_long

  {

    float f;

    USItype_x l;

  };

DItype_x __fixsfdi (float a1);

/* convert double to int */

DItype_x

__fixsfdi (float a1)

{

    register union float_long fl1;

    register int exp;

    register DItype_x l;

    fl1.f = a1;

    /* +/- 0, denormalized */

    if (!EXP (fl1))

      return 0;

    exp = EXP (fl1) - EXCESS - 24;

    /* number < 1 */

    if (exp < -24)

      return 0;

    /* NaN */

    if ((EXP(fl1) == 0xff) && (FRAC(fl1) != 0)) /* NaN */

      return 0x8000000000000000ULL;

    /* Number big number & +/- inf */

    if (exp >= 40) {

        l = (long long)1<<63;

        if (!SIGN(fl1))

            l--;

        return l;

    }

    l = MANT(fl1);

    if (exp > 0)

      l <<= exp;

    else

      l >>= -exp;

    return (SIGN (fl1) ? -l : l);

}

#define __fixsfdi ___fixsfdi

#endif

#undef L_fixsfdi