#include p18f87k22.inc

    bcf INTCON2, RBPU ;rezystory ustawiane indywidualnie
    clrf PORTB
    bsf TRISB, RB0 ; rezystor podciagajacy dla przycisku - PB0 jako wejscie

    bcf TRISB, RB5  ;gaszenie nieuzywanych LED
    bcf TRISB, RB4
    bcf PORTB, RB5
    bcf PORTB, RB4

    clrf PORTE
    bcf TRISE, RE7 ; porte re7 wyjscie
    bcf TRISE, RE6
    bcf TRISE, RE5
    bcf TRISE, RE4
    bcf TRISB, RB5
    bcf TRISB, RB4
    bcf TRISA, RA5
    clrf PORTA

et3:
    btfss PORTB, RB0
        goto d3
    goto et3
    d3: btfss PORTB, RB0
            goto d3
        goto zm3
zm3:
    btg PORTB, RB5

et2:
    btfss PORTB, RB0
        goto d2
    goto et2
    d2: btfss PORTB, RB0
            goto d2
        goto zm2
zm2:
    btg PORTB, RB4

et1:
    btfss PORTB, RB0
        goto d1
    goto et1
    d1: btfss PORTB, RB0
            goto d1
        goto zm1
zm1:
    btg PORTA, RA5


et7:
    btfss PORTB, RB0
        goto d7
    goto et7

    d7: btfss PORTB, RB0
            goto d7
        goto zm7
zm7:
    btg PORTE, RE7

et6:
    btfss PORTB, RB0
        goto d6
    goto et6
    d6: btfss PORTB, RB0
            goto d6
        goto zm6
zm6:
    btg PORTE, RE6

et5:
    btfss PORTB, RB0
        goto d5
    goto et5
    d5: btfss PORTB, RB0
            goto d5
        goto zm5
zm5:
    btg PORTE, RE5

et4:
    btfss PORTB, RB0
        goto d4
    goto et4
    d4: btfss PORTB, RB0
            goto d4
        goto zm4
zm4:
    btg PORTE, RE4

etzero: btfss PORTB, RB0
        goto dzero
    goto etzero
dzero:  btfss PORTB, RB0
            goto dzero
        goto zero


zero:
    btg PORTE, RE7
    btg PORTE, RE6
    btg PORTE, RE5
    btg PORTE, RE4
    btg PORTB, RB5
    btg PORTB, RB4
    clrf PORTA


    goto et3
END