sve parne pa neparne blink

.def tmp = r16
.def mask = r20
.def delayCnt = r21

.cseg
	rjmp reset

reset:
	ldi tmp, high(RAMEND)
	out SPH, tmp
	ldi tmp, low(RAMEND)
	out SPL, tmp

	ldi tmp, 0xff
	out DDRA, tmp
	out PORTA, tmp

	ldi delayCnt, 9

	ldi mask, 0b10101010

main:
	rcall akt
	rcall delay
rjmp main

akt:
	in tmp, PORTA

	cpi tmp, 0xff
	brne gasi
		eor tmp, mask
		com mask
		rjmp end

	gasi:
		ldi tmp, 0xff
	end:

	out PORTA, tmp
ret

delay:
	push r17
	push r18
	push r19

	clr r17
	clr r18
	mov r19, delayCnt

	delay_loop:
		dec r17
		brne delay_loop
			dec r18
			brne delay_loop
				dec r19
				brne delay_loop
	pop r19
	pop r18
	pop r17
ret