MOV 	A,#29H	
	MOV	R2,A		
	ANL	A,#0FH	
	ORL	A,#30H	
	MOV	R6,A		
	MOV	A,R2		
	ANL	A,#0F0H	
	RR	A		
	RR	A		
	RR	A		
	RR	A		
	ORL	A,#30H	
	MOV	R2,A