51单片机汇编程序集(3)

                 MOV     R4,A
                XCH    A,R0
                 MOV     R3,A
                 MOV     A,R1
                 MOV     R5,A
                 MOV     R2,#00H
      NDVMN1   : MOV     R7,N
                CLR    C
      NDVMN2   : MOV     A,@R0
                SUBB   A,@R1
                 MOV     @R0,A
                INC    R0
                INC    R1
                DJNZ   R7,NDVMN2
                 MOV     A,R4
                 MOV     R0,A
                 MOV     A,R5
                 MOV     R1,A
                JC     NDVMN3
                INC    R2
                SJMP   NDVMN1
      NDVMN3   : MOV     R7,N
                CLR    C
      NDVMN4   : MOV     A,@R0
                ADDC   A,@R1
                 MOV     @R0,A
                INC    R0
                INC    R1
                DJNZ   R7,NDVMN4
                 MOV     A,#08H
                MUL    AB
                 MOV     B,A
      NDVMN5   : MOV     A,R3
                 MOV     R0,A
                 MOV     R7,M
                CLR    C
      NDVMN6   : MOV     A,@R0
                RLC    A
                 MOV     @R0,A
                INC    R0
                DJNZ   R7,NDVMN6
                 MOV     F0,C
                 MOV     A,R4
                 MOV     R0,A
                 MOV     A,R5
                 MOV     R1,A
                 MOV     R7,N
                CLR    C
      NDVMN7   : MOV     A,@R0
                SUBB   A,@R1
                 MOV     @R0,A
                INC    R0
                INC    R1
                DJNZ   R7,NDVMN7
                JB     F0,NDVMNB
                JC     NDVMN8
      NDVMNB   : MOV     A,R3
                 MOV     R0,A
                INC    @R0
                SJMP   NDVMNA
      NDVMN8   : MOV     R7,N
                 MOV     A,R4

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本文关键字：单片机  51单片机，单片机-工控设备 - 51单片机