MOVE: MACRO 
	LDAA	#\1
	STAA	\2
	ENDM
DELAY_1: MACRO
	LDAA	#\1
	STAA	\2
\@BACK	NOP
	NOP
	NOP
	NOP		
	DEC	\2
	BNE	\@BACK
	ENDM
	BSET	  DDRB,%11111111		
OVER	MOVE	  $55,PORTB
	DELAY_1 200,$810
	MOVE	  $AA,PORTB
	DELAY_1 200,$810
	BRA	  OVER	
	END