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author | Sebastian Schmelzer | 2010-10-25 16:53:54 +0200 |
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committer | Sebastian Schmelzer | 2010-10-25 16:53:54 +0200 |
commit | 3050a9253437f4a4b5ad4bf3b3efdc3c660a5137 (patch) | |
tree | 91ac22153e416aac7ca20916b314b5e2ffa871b1 /contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h | |
download | preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.tar.gz preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.tar.xz preboot-3050a9253437f4a4b5ad4bf3b3efdc3c660a5137.zip |
Diffstat (limited to 'contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h')
-rw-r--r-- | contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h b/contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h new file mode 100644 index 0000000..0371c57 --- /dev/null +++ b/contrib/syslinux-4.02/gpxe/src/include/gpxe/rotate.h @@ -0,0 +1,29 @@ +#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 */ |