glibc/sysdeps/i386/fpu/s_fdimf.S
Ulrich Drepper 7ff2ba908a Update.
2004-09-29  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/i386/fpu/s_fdim.S (__fdim): Handle +inf/+inf.
	* sysdeps/i386/fpu/s_fdimf.S (__fdimf): Likewise.
	* sysdeps/i386/fpu/s_fdiml.S (__fdiml): Likewise.

004-09-29  Ulrich Drepper  <drepper@redhat.com>
2004-09-30 02:56:42 +00:00

53 lines
1.2 KiB
ArmAsm

/* Compute positive difference.
Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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. */
#include <sysdep.h>
.text
ENTRY(__fdimf)
flds 4(%esp) // x
flds 8(%esp) // x : y
fucom %st(1)
fnstsw
sahf
jp 1f
jc 3f
fstp %st(1)
fldz
jmp 2f
3: fsubrp %st, %st(1)
ret
1: fxam
fnstsw
andb $0x45, %ah
cmpb $0x01, %ah
je 2f
fxch
2: fstp %st(1)
ret
END(__fdimf)
weak_alias (__fdimf, fdimf)