#ifdef __GNUC__
#include <avr/io.h>
#include <avr/interrupt.h>

/* these work as expected */
/*
#define INT0_vect _VECTOR(2)
#define INT1_vect _VECTOR(4)
*/

#else
#include <mega16.h>
#endif

int main(void)
{
	PORTB = 0xFF;
	DDRB = 0xFF;

	GICR |= 0xC0;
	MCUCR = 0x0A;
	GIFR = 0xC0;

	sei();

	PORTB = ~(0x80);

	while (1);
}

#ifdef __GNUC__
ISR(INT0_vect)
#else
interrupt [EXT_INT0] void ext_int0_isr(void)
#endif
{
	PORTB = ~(0x01);
}

#ifdef __GNUC__
ISR(INT1_vect)
#else
interrupt [EXT_INT1] void ext_int1_isr(void)
#endif
{
	PORTB = ~(0x02);
}