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authorRichard Henderson <rth@redhat.com>2000-03-20 20:32:11 +0000
committerRichard Henderson <rth@redhat.com>2000-03-20 20:32:11 +0000
commitb7434f8243547189c14e42559c09c14c41d521ad (patch)
tree06c7bbb887a1c7db4b0140260a53e39eb3fb0aec /sysdeps/alpha/fpu/s_copysign.c
parent45159f0082e995c3a0e4829dd7c8662ffc0bd041 (diff)
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* 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.c33
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