instructions a b8 -- a>>b8 SHR -> Shifts the byte a by b8 bits to the right SHRw -> Shifts the word a by b8 bits to the right SHRx -> Shifts the byte x by b8 bits to the right SHRxw -> Shifts the word xw by b8 bits to the right SHRy -> Shifts the byte y by b8 bits to the right SHRyw -> Shifts the word yw by b8 bits to the right SHRxy -> Shifts the bytes x and y by b8 bits to the right SHRxyw -> Shifts the words xw and yw by b8 bits to the right