NetBSD/sys/lib/libkern/bswap16.c
bouyer 6ab3092b11 Add byte-swapping functions (bswap16, bswap32, bswap64) to libkern.
Only assembly version for i386 bswap16 and bswap32 for now (bswap64 uses
bswap32). Contribution of assembly versions of these are welcome.
Add byte-swapping of ext2fs metadata for big-endian systems.
Tested on i386 and sparc.
1997-10-09 15:42:19 +00:00

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C

/* $NetBSD: bswap16.c,v 1.1 1997/10/09 15:42:32 bouyer Exp $ */
/*
* Written by Manuel Bouyer <bouyer@netbsd.org>.
* Public domain.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char *rcsid = "$NetBSD: bswap16.c,v 1.1 1997/10/09 15:42:32 bouyer Exp $";
#endif
#include <sys/types.h>
#undef bswap16
u_int16_t
bswap16(x)
u_int16_t x;
{
return ((x << 8) & 0xff00) | ((x >> 8) & 0x00ff);
}