Commit 7a65eaf4 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: SH-5 byteorder routines. 



Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 4690bdc7

include/asm-sh/byteorder.h

+30 −15
Original line number Diff line number Diff line
@@ -3,26 +3,41 @@ 


/*

 * Copyright (C) 1999  Niibe Yutaka

 * Copyright (C) 2000, 2001  Paolo Alberelli

 */



#include <asm/types.h>

#include <linux/compiler.h>

#include <linux/types.h>



static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 x)

static inline __attribute_const__ __u32 ___arch__swab32(__u32 x)

{

	__asm__("swap.b	%0, %0\n\t"

	__asm__(

#ifdef CONFIG_SUPERH32

		"swap.b		%0, %0\n\t"

		"swap.w		%0, %0\n\t"

		"swap.b		%0, %0"

#else

		"byterev	%0, %0\n\t"

		"shari		%0, 32, %0"

#endif

		: "=r" (x)

		: "0" (x));



	return x;

}



static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 x)

static inline __attribute_const__ __u16 ___arch__swab16(__u16 x)

{

	__asm__("swap.b %0, %0"

	__asm__(

#ifdef CONFIG_SUPERH32

		"swap.b		%0, %0"

#else

		"byterev	%0, %0\n\t"

		"shari		%0, 32, %0"



#endif

		: "=r" (x)

		:  "0" (x));



	return x;

}