Trasnfer of a Block of Data (Overlapping)

    MOV 20h, #01h
    MOV 21h, #02h
    MOV 22h, #03h
    MOV 23h, #04h
    MOV 24h, #05h
    MOV 25h, #06h
    MOV 26h, #07h
    MOV 27h, #08h
    MOV 28h, #09h
    MOV 29h, #0Ah

    MOV R2, #0Ah    ;Counter
    MOV R0, #20h    ;Start of Source
    MOV R1, #25h    ;Start of Destination
    MOV A, R0
    ADD A, R2
    MOV R0, A
    MOV A, R1
    ADD A, R2
    MOV R1, A
loop:   DEC R0
    DEC R1
    MOV A, @R0
    MOV @R1, A
    DJNZ R2, loop
    END