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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 GNU CC.
GNU CC 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.
GNU CC 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 GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#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;
};
/* 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, negativ */
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;
};
/* 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;
};
/* 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, negativ */
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;
};
/* 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
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