blob: ba271ca740d776b3a6c30634eb6236e65de795b4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
#ifndef _IPXE_ROTATE_H
#define _IPXE_ROTATE_H
/** @file
*
* Bit operations
*/
FILE_LICENCE ( GPL2_OR_LATER );
#include <stdint.h>
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 */
|
