// #define __AVR_ATmega8__
#define F_CPU 8000000UL  /* 1 MHz CPU clock */
#include <util/delay.h>
#include <avr/io.h>

int main() {
    DDRB = 0xFF; // LED output
    DDRD = 0x00; // Switch input
    PORTB = 2;
    for (;;) {
        // condition ? value if true : value if false
        //PORTB = PORTD ? 2 : 1;

        //PORTB = PIND ? 2 : 1;

        if (PIND & (0x01))
            PORTB = 0x01;
        else
            PORTB = 0x00;
    }
    return 0;
}