Update.

1 files changed, 51 insertions, 0 deletions

diff --git a/sysdeps/i386/fpu/s_fdim.S b/sysdeps/i386/fpu/s_fdim.S
new file mode 100644
index 0000000000..7a1e2ffa49
--- /dev/null
+++ b/sysdeps/i386/fpu/s_fdim.S
@@ -0,0 +1,51 @@
+/* Compute positive difference.
+   Copyright (C) 1997, 1999 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 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 <sysdep.h>
+
+	.text
+ENTRY(__fdim)
+	fldl	4(%esp)		// x
+	fldl	12(%esp)	// x : y
+
+	fucom	%st(1)
+	fnstsw
+	sahf
+	jp	1f
+
+	fsubrp	%st, %st(1)
+	jc	2f
+
+	fstp	%st(0)
+	fldz
+	jmp	2f
+
+1:	fxam
+	fnstsw
+	andb	$0x45, %ah
+	cmpb	$0x01, %ah
+	je	3f
+
+	fxch
+3:	fstp	%st(1)
+
+2:	ret
+END(__fdim)
+weak_alias (__fdim, fdim)