diff options
Diffstat (limited to 'libc/sysdeps/linux/powerpc/bits/fenvinline.h')
| -rw-r--r-- | libc/sysdeps/linux/powerpc/bits/fenvinline.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/powerpc/bits/fenvinline.h b/libc/sysdeps/linux/powerpc/bits/fenvinline.h new file mode 100644 index 000000000..552c8c9db --- /dev/null +++ b/libc/sysdeps/linux/powerpc/bits/fenvinline.h @@ -0,0 +1,59 @@ +/* Inline floating-point environment handling functions for powerpc. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#if defined __GNUC__ && !defined _SOFT_FLOAT && !defined __NO_MATH_INLINES + +/* Inline definition for fegetround. */ +# define fegetround() \ + (__extension__ ({ int __fegetround_result; \ + __asm__ ("mcrfs 7,7 ; mfcr %0" \ + : "=r"(__fegetround_result) : : "cr7"); \ + __fegetround_result & 3; })) + +/* The weird 'i#*X' constraints on the following suppress a gcc + warning when __excepts is not a constant. Otherwise, they mean the + same as just plain 'i'. */ + +/* Inline definition for feraiseexcept. */ +# define feraiseexcept(__excepts) \ + ((__builtin_constant_p (__excepts) \ + && ((__excepts) & ((__excepts)-1)) == 0 \ + && (__excepts) != FE_INVALID) \ + ? ((__excepts) != 0 \ + ? (__extension__ ({ __asm__ __volatile__ \ + ("mtfsb1 %s0" \ + : : "i#*X"(__builtin_ffs (__excepts))); \ + 0; })) \ + : 0) \ + : (feraiseexcept) (__excepts)) + +/* Inline definition for feclearexcept. */ +# define feclearexcept(__excepts) \ + ((__builtin_constant_p (__excepts) \ + && ((__excepts) & ((__excepts)-1)) == 0 \ + && (__excepts) != FE_INVALID) \ + ? ((__excepts) != 0 \ + ? (__extension__ ({ __asm__ __volatile__ \ + ("mtfsb0 %s0" \ + : : "i#*X"(__builtin_ffs (__excepts))); \ + 0; })) \ + : 0) \ + : (feclearexcept) (__excepts)) + +#endif /* __GNUC__ && !_SOFT_FLOAT */ |