[deliverable/linux.git] / arch / powerpc / boot / swab.h

#ifndef _PPC_BOOT_SWAB_H_
#define _PPC_BOOT_SWAB_H_

static inline u16 swab16(u16 x)
{
	return  ((x & (u16)0x00ffU) << 8) |
		((x & (u16)0xff00U) >> 8);
}

static inline u32 swab32(u32 x)
{
	return  ((x & (u32)0x000000ffUL) << 24) |
		((x & (u32)0x0000ff00UL) <<  8) |
		((x & (u32)0x00ff0000UL) >>  8) |
		((x & (u32)0xff000000UL) >> 24);
}

static inline u64 swab64(u64 x)
{
	return  (u64)((x & (u64)0x00000000000000ffULL) << 56) |
		(u64)((x & (u64)0x000000000000ff00ULL) << 40) |
		(u64)((x & (u64)0x0000000000ff0000ULL) << 24) |
		(u64)((x & (u64)0x00000000ff000000ULL) <<  8) |
		(u64)((x & (u64)0x000000ff00000000ULL) >>  8) |
		(u64)((x & (u64)0x0000ff0000000000ULL) >> 24) |
		(u64)((x & (u64)0x00ff000000000000ULL) >> 40) |
		(u64)((x & (u64)0xff00000000000000ULL) >> 56);
}
#endif /* _PPC_BOOT_SWAB_H_ */
Commit	Line	Data
98fd433a CLG	1	#ifndef _PPC_BOOT_SWAB_H_
	2	#define _PPC_BOOT_SWAB_H_
	3
	4	static inline u16 swab16(u16 x)
	5	{
	6	return ((x & (u16)0x00ffU) << 8) \|
	7	((x & (u16)0xff00U) >> 8);
	8	}
	9
	10	static inline u32 swab32(u32 x)
	11	{
	12	return ((x & (u32)0x000000ffUL) << 24) \|
	13	((x & (u32)0x0000ff00UL) << 8) \|
	14	((x & (u32)0x00ff0000UL) >> 8) \|
	15	((x & (u32)0xff000000UL) >> 24);
	16	}
	17
	18	static inline u64 swab64(u64 x)
	19	{
	20	return (u64)((x & (u64)0x00000000000000ffULL) << 56) \|
	21	(u64)((x & (u64)0x000000000000ff00ULL) << 40) \|
	22	(u64)((x & (u64)0x0000000000ff0000ULL) << 24) \|
	23	(u64)((x & (u64)0x00000000ff000000ULL) << 8) \|
	24	(u64)((x & (u64)0x000000ff00000000ULL) >> 8) \|
	25	(u64)((x & (u64)0x0000ff0000000000ULL) >> 24) \|
	26	(u64)((x & (u64)0x00ff000000000000ULL) >> 40) \|
	27	(u64)((x & (u64)0xff00000000000000ULL) >> 56);
	28	}
	29	#endif /* _PPC_BOOT_SWAB_H_ */