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5cbd04ae HH |
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_SWAB_H | |
12 | #define _ASM_SWAB_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 | #define __arch_swab32 __arch_swab32 | |
26 | ||
27 | static inline __attribute__((const)) | |
28 | __u16 __arch_swab16(__u16 x) | |
29 | { | |
30 | __u16 ret; | |
31 | asm("swaph %1,%0" : "=r" (ret) : "r" (x)); | |
32 | return ret; | |
33 | } | |
34 | #define __arch_swab32 __arch_swab32 | |
35 | ||
36 | #if !defined(__STRICT_ANSI__) || defined(__KERNEL__) | |
37 | # define __SWAB_64_THRU_32__ | |
38 | #endif | |
39 | ||
40 | #endif /* __GNUC__ */ | |
41 | ||
42 | #endif /* _ASM_SWAB_H */ |