xref: /titanic_51/usr/src/lib/libm/i386/src/floorl.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 2006 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	"floorl.s"
30*25c28e83SPiotr Jasiukajtis
31*25c28e83SPiotr Jasiukajtis#include "libm.h"
32*25c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(ceill,function)
33*25c28e83SPiotr JasiukajtisLIBM_ANSI_PRAGMA_WEAK(floorl,function)
34*25c28e83SPiotr Jasiukajtis
35*25c28e83SPiotr Jasiukajtis	ENTRY(ceill)
36*25c28e83SPiotr Jasiukajtis	subl	$8,%esp
37*25c28e83SPiotr Jasiukajtis	fstcw	(%esp)
38*25c28e83SPiotr Jasiukajtis	fldt	12(%esp)
39*25c28e83SPiotr Jasiukajtis	movw	(%esp),%cx
40*25c28e83SPiotr Jasiukajtis	orw	$0x0c00,%cx
41*25c28e83SPiotr Jasiukajtis	xorw	$0x0400,%cx
42*25c28e83SPiotr Jasiukajtis	movw	%cx,4(%esp)
43*25c28e83SPiotr Jasiukajtis	fldcw	4(%esp)			/ set RD = up
44*25c28e83SPiotr Jasiukajtis	frndint
45*25c28e83SPiotr Jasiukajtis	fstcw	4(%esp)			/ restore RD
46*25c28e83SPiotr Jasiukajtis	movw	4(%esp),%dx
47*25c28e83SPiotr Jasiukajtis	andw	$0xf3ff,%dx
48*25c28e83SPiotr Jasiukajtis	movw	(%esp),%cx
49*25c28e83SPiotr Jasiukajtis	andw	$0x0c00,%cx
50*25c28e83SPiotr Jasiukajtis	orw	%dx,%cx
51*25c28e83SPiotr Jasiukajtis	movw	%cx,(%esp)
52*25c28e83SPiotr Jasiukajtis	fldcw	(%esp)			/ restore RD
53*25c28e83SPiotr Jasiukajtis	addl	$8,%esp
54*25c28e83SPiotr Jasiukajtis	ret
55*25c28e83SPiotr Jasiukajtis	.align	4
56*25c28e83SPiotr Jasiukajtis	SET_SIZE(ceill)
57*25c28e83SPiotr Jasiukajtis
58*25c28e83SPiotr Jasiukajtis
59*25c28e83SPiotr Jasiukajtis	ENTRY(floorl)
60*25c28e83SPiotr Jasiukajtis	subl	$8,%esp
61*25c28e83SPiotr Jasiukajtis	fstcw	(%esp)
62*25c28e83SPiotr Jasiukajtis	fldt	12(%esp)
63*25c28e83SPiotr Jasiukajtis	movw	(%esp),%cx
64*25c28e83SPiotr Jasiukajtis	orw	$0x0c00,%cx
65*25c28e83SPiotr Jasiukajtis	xorw	$0x0800,%cx
66*25c28e83SPiotr Jasiukajtis	movw	%cx,4(%esp)
67*25c28e83SPiotr Jasiukajtis	fldcw	4(%esp)			/ set RD = down
68*25c28e83SPiotr Jasiukajtis	frndint
69*25c28e83SPiotr Jasiukajtis	fstcw	4(%esp)			/ restore RD
70*25c28e83SPiotr Jasiukajtis	movw	4(%esp),%dx
71*25c28e83SPiotr Jasiukajtis	andw	$0xf3ff,%dx
72*25c28e83SPiotr Jasiukajtis	movw	(%esp),%cx
73*25c28e83SPiotr Jasiukajtis	andw	$0x0c00,%cx
74*25c28e83SPiotr Jasiukajtis	orw	%dx,%cx
75*25c28e83SPiotr Jasiukajtis	movw	%cx,(%esp)
76*25c28e83SPiotr Jasiukajtis	fldcw	(%esp)			/ restore RD
77*25c28e83SPiotr Jasiukajtis	addl	$8,%esp
78*25c28e83SPiotr Jasiukajtis	ret
79*25c28e83SPiotr Jasiukajtis	.align	4
80*25c28e83SPiotr Jasiukajtis	SET_SIZE(floorl)
81