| #ifndef _GPXE_ROTATE_H |
| #define _GPXE_ROTATE_H |
| |
| /** @file |
| * |
| * Bit operations |
| */ |
| |
| FILE_LICENCE ( GPL2_OR_LATER ); |
| |
| #include <stdint.h> |
| |
| static inline uint32_t rol32 ( uint32_t data, unsigned int rotation ) { |
| return ( ( data << rotation ) | ( data >> ( 32 - rotation ) ) ); |
| } |
| |
| static inline uint32_t ror32 ( uint32_t data, unsigned int rotation ) { |
| return ( ( data >> rotation ) | ( data << ( 32 - rotation ) ) ); |
| } |
| |
| static inline uint64_t rol64 ( uint64_t data, unsigned int rotation ) { |
| return ( ( data << rotation ) | ( data >> ( 64 - rotation ) ) ); |
| } |
| |
| static inline uint64_t ror64 ( uint64_t data, unsigned int rotation ) { |
| return ( ( data >> rotation ) | ( data << ( 64 - rotation ) ) ); |
| } |
| |
| #endif /* _GPXE_ROTATE_H */ |
