#include <avr/io.h>
#include <avr/iom8535.h>
#include <avr/interrupt.h>

ISR(INT0_vect)//Interrupt 0 service routine
{
	PORTB=0xAA;
}

int main (void)
{
	DDRB=0xff;
	DDRD=0x00;
	PORTD=0xff;
	
	MCUCR=0x00; 
//set register MCUCR 00 heksa (logika low mengaktifkan interrupt 0)
	GICR=0x40; // set register GICR 40 heksa (menggunakan interrupt 0)
	sei(); //Set global interrupt
	
	while(1)
	{
		PORTB=0x55;
	}
}