MCS-51单片机应用子程序：5.1.1二进制定点数移位

FRCL： CLR C MOV A,R7 RLC A MOV R7,A MOV A,R6 RLC A MOV R6,A MOV A,R3 RLC A MOV R3,A MOV A,R2 RLC A MOV R2,A RET