#include <avr/io.h>
#include <avr/interrupt.h>
#include <stdint.h>
SIGNAL(SIG_INTERRUPT0){
        uint8_t port = PINA;
        if(port==1){
                PORTD ^=(1<<PD5);
        }
        else{
                PORTD ^=(1<<PD6);
        }
}
int main(void){
        GICR=0xC0;
        MCUCR=0x01;
        sei();
        DDRD |= (1<<PD6)|(1<<PD5);
        DDRA = 0x00; //alla pinnar i porta som input riktning
        PORTD |= (1 << PD2);
        PORTA = 0x00; //pullup 0  pa alla pinnar
        while (1) {
        }
        return 0;
}