ORG	$8000			
	BCLR	 DDRB,%00000111	
	BSET	 DDRA,%11111111	
	LDX	 #ASCI_TABLE	
B6	LDAA	 PORTB		
	ANDA	 #$07			
	LDAA	 A,X			
	STAA	 PORTA		
	BRA	 B6			
	ORG $8500
ASCI_TABLE	DC.B	'0','1','2','3','4','5','6','7'
	END