button on/off

#define F_CPU 8000000UL
#include <avr/io.h>
#include <avr/interrupt.h>

ISR(TIMER1_COMPA_vect)
{
if(PINB &(1 << PB1)) PORTB &= ~(1 << PB1);
else PORTB |= (1<<PB1);
}


ISR(TIMER0_OVF_vect)
{
if(PINB &(1 << PB0)) PORTB&= ~(1 << PB0);
else PORTB |= (1 << PB0);
}

int main (void)
{

DDRB = 0b11111111;
PORTB = 0b0000000;

TCCR1A = 0b00000000;
TCCR1B |= (1 << CS12)|(1 << WGM12);
TCCR0 = 0b00000100;//делитель на 256
OCR1AH = 0b00010101;
OCR1AL = 0b00110000;
TIMSK |=(1 << OCIE1A)|(1 << TOIE0);
sei();

while (1)
{}
}