blob: 30c17dc83e44d0feace49a91d9ec388ff50a5109 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
/* $Id: fp.h,v 1.1 1998/07/16 19:10:04 ralf Exp $
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1998 by Ralf Baechle
*/
/*
* Activate and deactive the floatingpoint accelerator.
*/
#define enable_cp1() \
__asm__ __volatile__( \
".set\tpush\n\t" \
".set\tnoat\n\t" \
".set\treorder\n\t" \
"mfc0\t$1,$12\n\t" \
"or\t$1,%0\n\t" \
"mtc0\t$1,$12\n\t" \
".set\tpop" \
: : "r" (ST0_CU1));
#define disable_cp1() \
__asm__ __volatile__( \
".set\tpush\n\t" \
".set\tnoat\n\t" \
".set\treorder\n\t" \
"mfc0\t$1,$12\n\t" \
"or\t$1,%0\n\t" \
"xor\t$1,%0\n\t" \
"mtc0\t$1,$12\n\t" \
".set\tpop" \
: : "r" (ST0_CU1));
|
