xref: /titanic_51/usr/src/lib/libm/i386/src/floorl.s (revision 21b926adb26b0bf23fe75045ed308af582303bd0)
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	"floorl.s"
30
31#include "libm.h"
32LIBM_ANSI_PRAGMA_WEAK(ceill,function)
33LIBM_ANSI_PRAGMA_WEAK(floorl,function)
34
35	ENTRY(ceill)
36	subl	$8,%esp
37	fstcw	(%esp)
38	fldt	12(%esp)
39	movw	(%esp),%cx
40	orw	$0x0c00,%cx
41	xorw	$0x0400,%cx
42	movw	%cx,4(%esp)
43	fldcw	4(%esp)			/ set RD = up
44	frndint
45	fstcw	4(%esp)			/ restore RD
46	movw	4(%esp),%dx
47	andw	$0xf3ff,%dx
48	movw	(%esp),%cx
49	andw	$0x0c00,%cx
50	orw	%dx,%cx
51	movw	%cx,(%esp)
52	fldcw	(%esp)			/ restore RD
53	addl	$8,%esp
54	ret
55	.align	4
56	SET_SIZE(ceill)
57
58
59	ENTRY(floorl)
60	subl	$8,%esp
61	fstcw	(%esp)
62	fldt	12(%esp)
63	movw	(%esp),%cx
64	orw	$0x0c00,%cx
65	xorw	$0x0800,%cx
66	movw	%cx,4(%esp)
67	fldcw	4(%esp)			/ set RD = down
68	frndint
69	fstcw	4(%esp)			/ restore RD
70	movw	4(%esp),%dx
71	andw	$0xf3ff,%dx
72	movw	(%esp),%cx
73	andw	$0x0c00,%cx
74	orw	%dx,%cx
75	movw	%cx,(%esp)
76	fldcw	(%esp)			/ restore RD
77	addl	$8,%esp
78	ret
79	.align	4
80	SET_SIZE(floorl)
81