for (i=0; i<8; i++)
  {
    PORTD |= _BV(2); // pull clock high
	  
    Delay(2000);

    result |= (PIND & _BV(3))>>3; // read data bit
    if (i<7)
	  result <<= 1; // and shift left
	
    Delay(2000);

    if (i<7)
	  PORTD &= ~_BV(2); // pull clock low

    Delay(2000);
  }