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