author | Mark J. Nelson <Mark.J.Nelson@Sun.COM> |
Wed, 06 Aug 2008 16:29:39 -0600 | |
changeset 7298 | b69e27387f74 |
parent 6812 | febeba71273d |
permissions | -rw-r--r-- |
0 | 1 |
/* |
2 |
* CDDL HEADER START |
|
3 |
* |
|
4 |
* The contents of this file are subject to the terms of the |
|
6812 | 5 |
* Common Development and Distribution License (the "License"). |
6 |
* You may not use this file except in compliance with the License. |
|
0 | 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 |
*/ |
|
6812 | 21 |
|
22 |
/* |
|
23 |
* Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
|
24 |
* Use is subject to license terms. |
|
25 |
*/ |
|
26 |
||
0 | 27 |
/* Copyright (c) 1988 AT&T */ |
28 |
/* All Rights Reserved */ |
|
29 |
||
7298
b69e27387f74
6733918 Teamware has retired, please welcome your new manager, Mercurial
Mark J. Nelson <Mark.J.Nelson@Sun.COM>
parents:
6812
diff
changeset
|
30 |
.file "fpsetrnd.s" |
0 | 31 |
|
6812 | 32 |
#include "SYS.h" |
0 | 33 |
|
34 |
ANSI_PRAGMA_WEAK(fpsetround,function) |
|
35 |
||
36 |
ENTRY(fpsetround) |
|
37 |
add %sp, -SA(MINFRAME), %sp ! get an additional word of storage |
|
38 |
set 0xc0000000, %o4 ! mask of round control bits |
|
39 |
sll %o0, 30, %o1 ! move input bits into position |
|
40 |
st %fsr, [%sp+STACK_BIAS+ARGPUSH] ! get fsr value |
|
41 |
ld [%sp+STACK_BIAS+ARGPUSH], %o0 ! load into register |
|
42 |
and %o1, %o4, %o1 ! generate new fsr value |
|
43 |
andn %o0, %o4, %o2 |
|
44 |
or %o1, %o2, %o1 |
|
45 |
st %o1, [%sp+STACK_BIAS+ARGPUSH] ! move new fsr value to memory |
|
46 |
ld [%sp+STACK_BIAS+ARGPUSH], %fsr ! load fsr with new value |
|
47 |
srl %o0, 30, %o0 ! return old round control value |
|
48 |
retl |
|
49 |
add %sp, SA(MINFRAME), %sp ! reclaim stack space |
|
50 |
||
51 |
SET_SIZE(fpsetround) |