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- #ifndef _IPXE_ROTATE_H
- #define _IPXE_ROTATE_H
-
- /** @file
- *
- * Bit operations
- */
-
- FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
-
- #include <stdint.h>
-
- static inline __attribute__ (( always_inline )) uint8_t
- rol8 ( uint8_t data, unsigned int rotation ) {
- return ( ( data << rotation ) | ( data >> ( 8 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint8_t
- ror8 ( uint8_t data, unsigned int rotation ) {
- return ( ( data >> rotation ) | ( data << ( 8 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint16_t
- rol16 ( uint16_t data, unsigned int rotation ) {
- return ( ( data << rotation ) | ( data >> ( 16 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint16_t
- ror16 ( uint16_t data, unsigned int rotation ) {
- return ( ( data >> rotation ) | ( data << ( 16 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint32_t
- rol32 ( uint32_t data, unsigned int rotation ) {
- return ( ( data << rotation ) | ( data >> ( 32 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint32_t
- ror32 ( uint32_t data, unsigned int rotation ) {
- return ( ( data >> rotation ) | ( data << ( 32 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint64_t
- rol64 ( uint64_t data, unsigned int rotation ) {
- return ( ( data << rotation ) | ( data >> ( 64 - rotation ) ) );
- }
-
- static inline __attribute__ (( always_inline )) uint64_t
- ror64 ( uint64_t data, unsigned int rotation ) {
- return ( ( data >> rotation ) | ( data << ( 64 - rotation ) ) );
- }
-
- #endif /* _IPXE_ROTATE_H */
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