.include "m128def.inc"

.org        0x00
rjmp        init
.org        0x46


.def        i = r17
.def        tmp = r18
.def        sum = r19
.def        tmp2 = r20
.def        led = r21

.macro showleds
        out     PORTD, led
        swap    led
        out     PORTB, led
        swap    led
.endmacro

init:

        ldi     tmp, HIGH(0x160)
        out     SPH, itmp
        ldi     i, LOW(0x160)
        out     SPL, tmp

        ldi     tmp, 0xFF
        out     DDRB, tmp
        out     DDRD, tmp

main:

        call    szubrutin1

loop1:
    rjmp    loop1




szubrutin1:

        ldi     i, 11
        ldi     tmp, 12
        ldi     tmp2, 7
        clr     sum
loop:
        add     sum, tmp
        add     tmp, tmp2
        dec     i
        brne    loop

        st      X, sum
        mov     led, sum
        showleds


ret