blob: 3c993cc625f81c54fef3ecea1baaeebce5370da4 [file] [log] [blame]
David Howellsb920de12008-02-08 04:19:31 -08001/* MN10300 Byte-order primitive construction
2 *
3 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
4 * Written by David Howells (dhowells@redhat.com)
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public Licence
8 * as published by the Free Software Foundation; either version
9 * 2 of the Licence, or (at your option) any later version.
10 */
11#ifndef _ASM_BYTEORDER_H
12#define _ASM_BYTEORDER_H
13
14#include <asm/types.h>
15
16#ifdef __GNUC__
17
18static inline __attribute__((const))
19__u32 ___arch__swab32(__u32 x)
20{
21 __u32 ret;
22 asm("swap %1,%0" : "=r" (ret) : "r" (x));
23 return ret;
24}
25
26static inline __attribute__((const))
27__u16 ___arch__swab16(__u16 x)
28{
29 __u16 ret;
30 asm("swaph %1,%0" : "=r" (ret) : "r" (x));
31 return ret;
32}
33
34#define __arch__swab32(x) ___arch__swab32(x)
35#define __arch__swab16(x) ___arch__swab16(x)
36
37#if !defined(__STRICT_ANSI__) || defined(__KERNEL__)
38# define __BYTEORDER_HAS_U64__
39# define __SWAB_64_THRU_32__
40#endif
41
42#endif /* __GNUC__ */
43
44#include <linux/byteorder/little_endian.h>
45
46#endif /* _ASM_BYTEORDER_H */