diff options
Diffstat (limited to 'include/asm-sh64/byteorder.h')
| -rw-r--r-- | include/asm-sh64/byteorder.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/include/asm-sh64/byteorder.h b/include/asm-sh64/byteorder.h new file mode 100644 index 000000000000..f602ebe334eb --- /dev/null +++ b/include/asm-sh64/byteorder.h @@ -0,0 +1,49 @@ +#ifndef __ASM_SH64_BYTEORDER_H +#define __ASM_SH64_BYTEORDER_H + +/* + * 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. + * + * include/asm-sh64/byteorder.h + * + * Copyright (C) 2000, 2001 Paolo Alberelli + * + */ + +#include <asm/types.h> + +static __inline__ __const__ __u32 ___arch__swab32(__u32 x) +{ + __asm__("byterev %0, %0\n\t" + "shari %0, 32, %0" + : "=r" (x) + : "0" (x)); + return x; +} + +static __inline__ __const__ __u16 ___arch__swab16(__u16 x) +{ + __asm__("byterev %0, %0\n\t" + "shari %0, 48, %0" + : "=r" (x) + : "0" (x)); + return x; +} + +#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 + +#ifdef __LITTLE_ENDIAN__ +#include <linux/byteorder/little_endian.h> +#else +#include <linux/byteorder/big_endian.h> +#endif + +#endif /* __ASM_SH64_BYTEORDER_H */ |