.INCLUDE "M32DEF.INC"

.MACRO	INITSTACK
	LDI	R20,HIGH(RAMEND)
	OUT	SPH,R20
	LDI	R20,LOW(RAMEND)
	OUT	SPL,R20
.ENDMACRO
	
	INITSTACK	
	LDI	R16,0x20
	SBI	DDRB,5		
	LDI	R17,0		
	OUT	PORTB,R17	
BEGIN:
	RCALL	DELAY
	EOR	R17,R16		
	OUT	PORTB,R17	
	RJMP BEGIN

DELAY:	
	LDI	R20,0xD8
	OUT	TCNT1H,R20	
	LDI	R20,0xF0
	OUT	TCNT1L,R20	
	
	LDI	R20,0x00
	OUT	TCCR1A,R20	
	LDI	R20,0x01
	OUT	TCCR1B,R20	

AGAIN:	
	IN	R20,TIFR	
	SBRS	R20,TOV1
	RJMP	AGAIN
	LDI	R20,0x00
	OUT	TCCR1B,R20	
	LDI	R20,0x04	
	OUT	TIFR,R20	
	RET