1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
23 */
24/*
25 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
26 * Use is subject to license terms.
27 */
28
29        .file "rint.s"
30
31#include "libm.h"
32	.weak __rint
33	.type __rint,@function
34
35	ENTRY(rint)
36	fldl	4(%esp)			# load x
37	movl	8(%esp),%eax		# eax <-- hi_32(x)
38	andl	$0x7fffffff,%eax	# eax <-- hi_32(|x|)
39	cmpl	$0x43300000,%eax	# is |x| >= 2**52?
40	jae	.done			# if so, branch (already integral)
41	frndint				# [x], per rounding mode
42.done:
43	fwait
44	ret
45	.align	4
46	SET_SIZE(rint)
47