xref: /titanic_51/usr/src/lib/libm/amd64/src/fmodf.s (revision ddc0e0b53c661f6e439e3b7072b3ef353eadb4af)
1*25c28e83SPiotr Jasiukajtis/*
2*25c28e83SPiotr Jasiukajtis * CDDL HEADER START
3*25c28e83SPiotr Jasiukajtis *
4*25c28e83SPiotr Jasiukajtis * The contents of this file are subject to the terms of the
5*25c28e83SPiotr Jasiukajtis * Common Development and Distribution License (the "License").
6*25c28e83SPiotr Jasiukajtis * You may not use this file except in compliance with the License.
7*25c28e83SPiotr Jasiukajtis *
8*25c28e83SPiotr Jasiukajtis * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*25c28e83SPiotr Jasiukajtis * or http://www.opensolaris.org/os/licensing.
10*25c28e83SPiotr Jasiukajtis * See the License for the specific language governing permissions
11*25c28e83SPiotr Jasiukajtis * and limitations under the License.
12*25c28e83SPiotr Jasiukajtis *
13*25c28e83SPiotr Jasiukajtis * When distributing Covered Code, include this CDDL HEADER in each
14*25c28e83SPiotr Jasiukajtis * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*25c28e83SPiotr Jasiukajtis * If applicable, add the following below this CDDL HEADER, with the
16*25c28e83SPiotr Jasiukajtis * fields enclosed by brackets "[]" replaced with your own identifying
17*25c28e83SPiotr Jasiukajtis * information: Portions Copyright [yyyy] [name of copyright owner]
18*25c28e83SPiotr Jasiukajtis *
19*25c28e83SPiotr Jasiukajtis * CDDL HEADER END
20*25c28e83SPiotr Jasiukajtis */
21*25c28e83SPiotr Jasiukajtis/*
22*25c28e83SPiotr Jasiukajtis * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
23*25c28e83SPiotr Jasiukajtis */
24*25c28e83SPiotr Jasiukajtis/*
25*25c28e83SPiotr Jasiukajtis * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
26*25c28e83SPiotr Jasiukajtis * Use is subject to license terms.
27*25c28e83SPiotr Jasiukajtis */
28*25c28e83SPiotr Jasiukajtis
29*25c28e83SPiotr Jasiukajtis        .file "fmodf.s"
30*25c28e83SPiotr Jasiukajtis
31*25c28e83SPiotr Jasiukajtis#include "libm.h"
32*25c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(fmodf,function)
33*25c28e83SPiotr Jasiukajtis
34*25c28e83SPiotr Jasiukajtis	ENTRY(fmodf)
35*25c28e83SPiotr Jasiukajtis	push	%rbp
36*25c28e83SPiotr Jasiukajtis	movq	%rsp,%rbp
37*25c28e83SPiotr Jasiukajtis	subq	$16,%rsp
38*25c28e83SPiotr Jasiukajtis	movss	%xmm1,-8(%rbp)
39*25c28e83SPiotr Jasiukajtis	movss	%xmm0,-4(%rbp)
40*25c28e83SPiotr Jasiukajtis	flds	-8(%rbp)		/ load arg y
41*25c28e83SPiotr Jasiukajtis	flds	-4(%rbp)		/ load arg x
42*25c28e83SPiotr Jasiukajtis.loop:
43*25c28e83SPiotr Jasiukajtis	fprem				/ partial remainder
44*25c28e83SPiotr Jasiukajtis	fstsw	%ax			/ store status word
45*25c28e83SPiotr Jasiukajtis	andw	$0x400,%ax		/ check whether reduction complete
46*25c28e83SPiotr Jasiukajtis	jne	.loop			/ loop while reduction incomplete
47*25c28e83SPiotr Jasiukajtis	fstps	-4(%rbp)
48*25c28e83SPiotr Jasiukajtis	movss	-4(%rbp),%xmm0
49*25c28e83SPiotr Jasiukajtis	fstp	%st(0)
50*25c28e83SPiotr Jasiukajtis	leave
51*25c28e83SPiotr Jasiukajtis	ret
52*25c28e83SPiotr Jasiukajtis	.align	4
53*25c28e83SPiotr Jasiukajtis	SET_SIZE(fmodf)
54