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author | Richard Henderson <rth@redhat.com> | 2000-03-20 20:32:11 +0000 |
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committer | Richard Henderson <rth@redhat.com> | 2000-03-20 20:32:11 +0000 |
commit | b7434f8243547189c14e42559c09c14c41d521ad (patch) | |
tree | 06c7bbb887a1c7db4b0140260a53e39eb3fb0aec /sysdeps/alpha/fpu/s_copysign.c | |
parent | 45159f0082e995c3a0e4829dd7c8662ffc0bd041 (diff) | |
download | glibc-b7434f8243547189c14e42559c09c14c41d521ad.tar.gz glibc-b7434f8243547189c14e42559c09c14c41d521ad.tar.xz glibc-b7434f8243547189c14e42559c09c14c41d521ad.zip |
* sysdeps/alpha/fpu/fraiseexcpt.c: Use get/set_fp_control instead of arithmetic instructions.
* sysdeps/alpha/fpu/s_ceil.c: Use round to -inf instead of playing with the fpcr. Protect from INV exception. * sysdeps/alpha/fpu/s_ceilf.c: Likewise. * sysdeps/alpha/fpu/s_floor.c: Protect from INV exception. * sysdeps/alpha/fpu/s_floorf.c: Likewise. * sysdeps/alpha/fpu/s_copysign.c: New. * sysdeps/alpha/fpu/s_copysignf.c: New. * sysdeps/alpha/fpu/s_fabs.c: New. * sysdeps/alpha/fpu/s_fabsf.c: New. * sysdeps/alpha/fpu/s_rint.c: New. * sysdeps/alpha/fpu/s_rintf.c: New. * sysdeps/alpha/fpu/fraiseexcpt.c: Use get/set_fp_control instead of arithmetic instructions. * sysdeps/alpha/fpu/s_ceil.c: Use round to -inf instead of playing with the fpcr. Protect from INV exception. * sysdeps/alpha/fpu/s_ceilf.c: Likewise. * sysdeps/alpha/fpu/s_floor.c: Protect from INV exception. * sysdeps/alpha/fpu/s_floorf.c: Likewise. * sysdeps/alpha/fpu/s_copysign.c: New. * sysdeps/alpha/fpu/s_copysignf.c: New. * sysdeps/alpha/fpu/s_fabs.c: New. * sysdeps/alpha/fpu/s_fabsf.c: New. * sysdeps/alpha/fpu/s_rint.c: New. * sysdeps/alpha/fpu/s_rintf.c: New.
Diffstat (limited to 'sysdeps/alpha/fpu/s_copysign.c')
-rw-r--r-- | sysdeps/alpha/fpu/s_copysign.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/s_copysign.c b/sysdeps/alpha/fpu/s_copysign.c new file mode 100644 index 0000000000..5c8d827018 --- /dev/null +++ b/sysdeps/alpha/fpu/s_copysign.c @@ -0,0 +1,33 @@ +/* Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Richard Henderson. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <math.h> + +double +__copysign (double x, double y) +{ + __asm ("cpys %1, %2, %0" : "=f" (x) : "f" (y), "f" (x)); + return x; +} + +weak_alias (__copysign, copysign) +#ifdef NO_LONG_DOUBLE +strong_alias (__copysign, __copysignl) +weak_alias (__copysign, copysignl) +#endif |