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Diffstat (limited to 'include/asm-mn10300/byteorder.h')
| -rw-r--r-- | include/asm-mn10300/byteorder.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/include/asm-mn10300/byteorder.h b/include/asm-mn10300/byteorder.h new file mode 100644 index 000000000000..3c993cc625f8 --- /dev/null +++ b/include/asm-mn10300/byteorder.h @@ -0,0 +1,46 @@ +/* MN10300 Byte-order primitive construction + * + * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public Licence + * as published by the Free Software Foundation; either version + * 2 of the Licence, or (at your option) any later version. + */ +#ifndef _ASM_BYTEORDER_H +#define _ASM_BYTEORDER_H + +#include <asm/types.h> + +#ifdef __GNUC__ + +static inline __attribute__((const)) +__u32 ___arch__swab32(__u32 x) +{ + __u32 ret; + asm("swap %1,%0" : "=r" (ret) : "r" (x)); + return ret; +} + +static inline __attribute__((const)) +__u16 ___arch__swab16(__u16 x) +{ + __u16 ret; + asm("swaph %1,%0" : "=r" (ret) : "r" (x)); + return ret; +} + +#define __arch__swab32(x) ___arch__swab32(x) +#define __arch__swab16(x) ___arch__swab16(x) + +#if !defined(__STRICT_ANSI__) || defined(__KERNEL__) +# define __BYTEORDER_HAS_U64__ +# define __SWAB_64_THRU_32__ +#endif + +#endif /* __GNUC__ */ + +#include <linux/byteorder/little_endian.h> + +#endif /* _ASM_BYTEORDER_H */ |