s tipkama

;
; Zadatak1.asm
;
; Created: 9.12.2018. 20:08:56
; Author : Maja Vrsaljko
;

.def tmp = r16
.def counter = r17
.def step = r18


.cseg
    rjmp reset
/*
.org $002
    rjmp inc_int
.org $004
    rjmp dec_int
    */
reset:
    ldi tmp, high(RAMEND)
    out SPH, tmp
    ldi tmp, low(RAMEND)
    out SPL, tmp

    ldi tmp, (1 << PD5)//pin
    out DDRD, tmp

    ldi tmp, (1 << 0) | (1 << 1)
    out PORTB, tmp //tipkice

    ldi tmp, (1 << COM1A0) | (1 << COM1A1) | (1 << WGM10)
    out TCCR1A, tmp

    ldi tmp, (1 << CS11) | (1 << WGM12)
    out TCCR1B, tmp

    ldi tmp, high(200)
    out OCR1AH, tmp
    ldi tmp, low(200)
    out OCR1AL, tmp

    ldi step, 0x05
    /*
    ldi tmp, (1 << ISC01) | (1 << ISC11)
    out MCUCR, tmp
    ldi tmp, (1 << INT0) | (1 << INT1)
    out GICR, tmp
    sei
    */
main:
    sbis PINB, 0
        rcall inc_int
    sbis PINB, 1
        rcall dec_int
rjmp main

inc_int:
    ldi tmp, 250
    in counter, OCR1AL

    cpse counter, tmp
        add counter, step

    out OCR1AL, counter
//reti
ret

dec_int:
    ldi tmp, 0
    in counter, OCR1AL

    cpse counter, tmp
        sub counter, step

    out OCR1AL, counter
//reti
ret