instructions a b8 -- a<<b8 SHL -> Shifts the byte a by b8 bits to the left SHLw -> Shifts the word a by b8 bits to the left SHLx -> Shifts the byte x by b8 bits to the left SHLxw -> Shifts the word xw by b8 bits to the left SHLy -> Shifts the byte y by b8 bits to the left SHLyw -> Shifts the word yw by b8 bits to the left SHLxy -> Shifts the bytes x and y by b8 bits to the left SHLxyw -> Shifts the words xw and yw by b8 bits to the left