.include "tn15def.inc"
.equ LED = PB0
.def temp1 = R17
.def temp2 = R18

.cseg
.org 0
rjmp main

delay:
	ldi temp2, 0xFF
_delay1:
	ldi temp2, 0xFF
_delay2:
	dec temp1
	brne _delay2
	dec temp2
	brne _delay1
	ret

main:
	; set the dir bit
	sbi DDRB, LED

loop:
	; turn off the pin
	sbi PORTB, LED

	; call the delay
	recall delay
	
	; turn off the pin
	cbi PORTB, LED 
	
	; call the delay
	recall delay 
	
	; loop back to main
	rjmp loop