MOV	A,#90H		
		MOV	DPTR,#1003H
		MOVX @DPTR,A		
		MOV	DPTR,#1000H	
		MOVX A,@DPTR		
		INC	DPTR			
		MOVX @DPTR,A		
		INC  DPTR			
		MOVX @DPTR,A