MOV A,#30H
    LCALL COMMAND
    MOV R3,#10
    LCALL DELAY
    MOV A,#30H
    LCALL COMMAND
    MOV R3,#10
    LCALL DELAY
    MOV A,#30H
    LCALL COMMAND

Delay souroutine:

DELAY :
    MOV R5,#0FFH
    SUBDELAY :
        PUSH 05H
        MOV R5,#0BH
        DJNZ R5,$
        POP 05H
        DJNZ R5,SUBDELAY
    DJNZ R3, DELAY
RET