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b920de1b DH |
1 | /* 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 | ||
18 | static 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 | ||
26 | static 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 */ |