1#ifndef _GPXE_ROTATE_H
2#define _GPXE_ROTATE_H
3
4/** @file
5 *
6 * Bit operations
7 */
8
9FILE_LICENCE ( GPL2_OR_LATER );
10
11#include <stdint.h>
12
13static inline uint32_t rol32 ( uint32_t data, unsigned int rotation ) {
14        return ( ( data << rotation ) | ( data >> ( 32 - rotation ) ) );
15}
16
17static inline uint32_t ror32 ( uint32_t data, unsigned int rotation ) {
18        return ( ( data >> rotation ) | ( data << ( 32 - rotation ) ) );
19}
20
21static inline uint64_t rol64 ( uint64_t data, unsigned int rotation ) {
22        return ( ( data << rotation ) | ( data >> ( 64 - rotation ) ) );
23}
24
25static inline uint64_t ror64 ( uint64_t data, unsigned int rotation ) {
26        return ( ( data >> rotation ) | ( data << ( 64 - rotation ) ) );
27}
28
29#endif /* _GPXE_ROTATE_H */
30