fixed_t Note::get_sample()
{
	if (freq!=dest_freq)
	{
		// the div.by.zero if p_frames=0 is avoided because then the 
		// if-condition below is always true
		if (portamento_t>=portamento_frames)
			freq=dest_freq;
		else //will only happen if p_t < p_frames -> p_frames is always > 0 -> div. ok
			freq = old_freq + (dest_freq-old_freq)*portamento_t/portamento_frames;
		
		do_ksl();
		
		portamento_t++;
	}

	fixed_t actual_freq=freq*pitchbend >>SCALE;

	fixed_t *temp;
	temp=old_oscval;   //swap the current and old oscval-pointers
	old_oscval=oscval;
	oscval=temp;