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bswap32.c revision 1.1.6.1
      1  1.1.6.1       snj /*  $NetBSD: bswap32.c,v 1.1.6.1 2008/11/18 19:10:02 snj Exp $    */
      2      1.1  christos 
      3      1.1  christos /*
      4      1.1  christos  * Written by Manuel Bouyer <bouyer (at) NetBSD.org>.
      5      1.1  christos  * Public domain.
      6      1.1  christos  */
      7      1.1  christos 
      8      1.1  christos #include <sys/cdefs.h>
      9      1.1  christos #if defined(LIBC_SCCS) && !defined(lint)
     10  1.1.6.1       snj __RCSID("$NetBSD: bswap32.c,v 1.1.6.1 2008/11/18 19:10:02 snj Exp $");
     11      1.1  christos #endif /* LIBC_SCCS and not lint */
     12      1.1  christos 
     13      1.1  christos #include <sys/types.h>
     14      1.1  christos #include <machine/bswap.h>
     15      1.1  christos 
     16      1.1  christos #undef bswap32
     17      1.1  christos 
     18  1.1.6.1       snj uint32_t
     19      1.1  christos bswap32(x)
     20  1.1.6.1       snj 	uint32_t x;
     21      1.1  christos {
     22      1.1  christos 	return	((x << 24) & 0xff000000 ) |
     23      1.1  christos 		((x <<  8) & 0x00ff0000 ) |
     24      1.1  christos 		((x >>  8) & 0x0000ff00 ) |
     25      1.1  christos 		((x >> 24) & 0x000000ff );
     26      1.1  christos }
     27