89 lines
2.7 KiB
C
89 lines
2.7 KiB
C
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/* Inline math functions for powerpc.
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Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#if defined __GNUC__ && !defined _SOFT_FLOAT
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#ifdef __USE_ISOC99
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# define __unordered_cmp(x, y) \
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(__extension__ \
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({ __typeof__(x) __x = (x); __typeof__(y) __y = (y); \
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unsigned __r; \
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__asm__("fcmpu 7,%1,%2 ; mfcr %0" : "=r" (__r) : "f" (__x), "f"(__y) \
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: "cr7"); \
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__r; }))
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# define isgreater(x, y) (__unordered_cmp (x, y) >> 2 & 1)
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# define isgreaterequal(x, y) ((__unordered_cmp (x, y) & 6) != 0)
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# define isless(x, y) (__unordered_cmp (x, y) >> 3 & 1)
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# define islessequal(x, y) ((__unordered_cmp (x, y) & 0xA) != 0)
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# define islessgreater(x, y) ((__unordered_cmp (x, y) & 0xC) != 0)
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# define isunordered(x, y) (__unordered_cmp (x, y) & 1)
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#endif /* __USE_ISOC99 && !_SOFT_FLOAT */
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#if !defined __NO_MATH_INLINES && defined __OPTIMIZE__
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#ifdef __cplusplus
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# define __MATH_INLINE __inline
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#else
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# define __MATH_INLINE extern __inline
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#endif /* __cplusplus */
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#ifdef __USE_ISOC99
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__MATH_INLINE long int lrint (double __x);
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__MATH_INLINE long int
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lrint (double __x)
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{
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union {
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double __d;
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long int __ll[2];
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} __u;
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__asm__ ("fctiw %0,%1" : "=f"(__u.__d) : "f"(__x));
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return __u.__ll[1];
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}
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__MATH_INLINE long int lrintf (float __x);
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__MATH_INLINE long int
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lrintf (float __x)
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{
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union {
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double __d;
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long int __ll[2];
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} __u;
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__asm__ ("fctiw %0,%1" : "=f"(__u.__d) : "f"(__x));
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return __u.__ll[1];
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}
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__MATH_INLINE double fdim (double __x, double __y);
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__MATH_INLINE double
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fdim (double __x, double __y)
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{
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return __x < __y ? 0 : __x - __y;
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}
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__MATH_INLINE float fdimf (float __x, float __y);
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__MATH_INLINE float
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fdimf (float __x, float __y)
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{
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return __x < __y ? 0 : __x - __y;
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}
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#endif /* __USE_ISOC99 */
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#endif /* !__NO_MATH_INLINES && __OPTIMIZE__ */
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#endif /* __GNUC__ && !_SOFT_FLOAT */
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