1/* Compute positive difference.
2   Copyright (C) 1997, 1999, 2004 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
5
6   The GNU C Library is free software; you can redistribute it and/or
7   modify it under the terms of the GNU Lesser General Public
8   License as published by the Free Software Foundation; either
9   version 2.1 of the License, or (at your option) any later version.
10
11   The GNU C Library is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14   Lesser General Public License for more details.
15
16   You should have received a copy of the GNU Lesser General Public
17   License along with the GNU C Library; if not, write to the Free
18   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
19   02111-1307 USA.  */
20
21#include <sysdep.h>
22
23	.text
24ENTRY(__fdiml)
25	fldt	4(%esp)		// x
26	fldt	16(%esp)	// x : y
27
28	fucom	%st(1)
29	fnstsw
30	sahf
31	jp	1f
32
33	jc	3f
34
35	fstp	%st(1)
36	fldz
37	jmp	2f
38
393:	fsubrp	%st, %st(1)
40	ret
41
421:	fxam
43	fnstsw
44	andb	$0x45, %ah
45	cmpb	$0x01, %ah
46	je	2f
47
48	fxch
492:	fstp	%st(1)
50	ret
51END(__fdiml)
52weak_alias (__fdiml, fdiml)
53