xref: /titanic_41/usr/src/lib/libc/i386/fp/fpgetsticky.c (revision 4445fffbbb1ea25fd0e9ea68b9380dd7a6709025)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 #pragma weak _fpgetsticky = fpgetsticky
30 
31 #include "lint.h"
32 #include <ieeefp.h>
33 
34 extern int	_sse_hw;
35 extern void	_getsw(int *), _getmxcsr(int *);
36 
37 fp_except
38 fpgetsticky(void)
39 {
40 	int	sw, mxcsr;
41 
42 	_getsw(&sw);
43 	if (_sse_hw) {
44 		_getmxcsr(&mxcsr);
45 		sw |= mxcsr;
46 	}
47 	return ((fp_except)(sw & 0x3f));
48 }
49