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bswap32.c revision 1.1.18.1
      1  1.1.18.1      matt /*  bswap32.c,v 1.1 2005/12/20 19:28:51 christos 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  1.1.18.1      matt __RCSID("bswap32.c,v 1.1 2005/12/20 19:28:51 christos 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  1.1.18.1      matt uint32_t
     19       1.1  christos bswap32(x)
     20  1.1.18.1      matt 	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