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/* $OpenBSD: endian.h,v 1.8 2019/02/17 15:44:26 deraadt Exp $ */
/* $NetBSD: endian.h,v 1.4 2000/03/17 00:09:25 mycroft Exp $ */
/* Written by Manuel Bouyer. Public domain */
#ifndef _SH_ENDIAN_H_
#define _SH_ENDIAN_H_
#ifndef __FROM_SYS__ENDIAN
#include <sys/_types.h>
#endif
static __inline __uint16_t
__swap16md(__uint16_t _x)
{
__uint16_t _rv;
__asm volatile ("swap.b %1,%0" : "=r"(_rv) : "r"(_x));
return (_rv);
}
static __inline __uint32_t
__swap32md(__uint32_t _x)
{
__uint32_t _rv;
__asm volatile ("swap.b %1,%0; swap.w %0,%0; swap.b %0,%0"
: "=r"(_rv) : "r"(_x));
return (_rv);
}
static __inline __uint64_t
__swap64md(__uint64_t _x)
{
__uint64_t _rv;
_rv = (__uint64_t)__swap32md((__uint32_t)(_x >> 32)) |
(__uint64_t)__swap32md((__uint32_t)_x) << 32;
return (_rv);
}
/* Tell sys/endian.h we have MD variants of the swap macros. */
#define __HAVE_MD_SWAP
#ifdef __LITTLE_ENDIAN__
#define _BYTE_ORDER _LITTLE_ENDIAN
#else
#define _BYTE_ORDER _BIG_ENDIAN
#endif
#define __STRICT_ALIGNMENT
#ifndef __FROM_SYS__ENDIAN
#include <sys/endian.h>
#endif
#endif /* !_SH_ENDIAN_H_ */
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