35.3.3.11. INTEGER ARITHMETICAL ON MCS51

RL	A		0010 0011		Rotate Accumulator Left

		(An+1) <- (An)
		(A0)   <- (A7)

RR	A		0000 0011		Rotate Accumulator Right

		(An)   <- (An+1)
		(A7)   <- (A0)
RLC	A		0011 0011		Rotate Accumulator Left
						(throught Cy)

		(An+1) <- (An)
		(A0)   <- C
		C      <- (A7)

RRC	A		0001 0011		Rotate Accumulator Right
						(throught Cy)
		(An)   <- (An+1)
		(A7)   <- C
		C      <- A0