diff options
Diffstat (limited to 'qemu/roms/ipxe/src/include/ipxe/rotate.h')
| -rw-r--r-- | qemu/roms/ipxe/src/include/ipxe/rotate.h | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/qemu/roms/ipxe/src/include/ipxe/rotate.h b/qemu/roms/ipxe/src/include/ipxe/rotate.h index ba271ca74..b5693e3ca 100644 --- a/qemu/roms/ipxe/src/include/ipxe/rotate.h +++ b/qemu/roms/ipxe/src/include/ipxe/rotate.h @@ -6,10 +6,30 @@ * Bit operations */ -FILE_LICENCE ( GPL2_OR_LATER ); +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 ) ) ); |