R1 EQU $1225
	R2 EQU $1226
	COUNT_1 EQU 10
	COUNT_2 EQU 70
	LDAA #$FF
	STAA DDRB		
	LDAA #$55		
	STAA PORTB		
	LDAA #COUNT_1	
	STAA R1		
LOP_1	LDAA #COUNT_2	
	STAA R2		
LOP_2	COM PORTB		
	DEC R2		
	BNE LOP_2		
	DEC R1		
	BNE LOP_1