mirror of https://github.com/ipxe/ipxe.git
28 lines
724 B
C
28 lines
724 B
C
#ifndef _GPXE_BITOPS_H
|
|
#define _GPXE_BITOPS_H
|
|
|
|
/** @file
|
|
*
|
|
* Bit operations
|
|
*/
|
|
|
|
#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_BITOPS_H */
|