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