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/* Definitions of target machine for GNU compiler, for IBM S/390
   Copyright (C) 1999, 2000, 2001, 2007 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 3, 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 COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */
 
#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 nonzero 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 nonzero 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