/*
 * GccApplication3.c
 *
 * Created: 08.10.2018 15:21:47
 * Author : student
 */ 

#include <avr/io.h>
#include <inttypes.h>
#include <avr/interrupt.h>
#include <avr/sleep.h>

//-----------------------------------------------------

volatile int x;

ISR(INT0_vect)
{
	if(x>0)
	{
		x--;
	}
	else if(x==0)
	{
		x=0;
	}
}

ISR(INT1_vect)
{
	if(x<7)
	{
		x++;
	}
	else if(x==7)
	{
		x=7;
	}

}


int main(void)
{
	DDRB=0xFF;
	PORTB= ~_BV(x); //swieci sie

	
	GICR=_BV(INT0) | _BV(INT1);
	MCUCR= _BV(ISC11) | _BV(ISC01);

	sei();
	x=0;

    /* Replace with your application code */
    while (1) 
    {
		sleep_mode();
		PORTB=~_BV(x);
    }
}