.INCLUDE "M32DEF.INC"

.MACRO LOADIO 
	LDI	R20,@1
	OUT	@0,R20
.ENDMACRO

.MACRO DELAY
	LDI @0,@1
BACK:
	NOP
	NOP
	NOP
	NOP
	DEC	@0
	BRNE BACK
.ENDMACRO

.ORG 0
.LISTMAC
	LOADIO	DDRB,0xFF
L1:	LOADIO	PORTB,0x55
	DELAY	R18,0x70
	LOADIO	PORTB,0xAA
	DELAY	R18,0x70
	RJMP	L1