SIDPLAY, a C64 music player and SID chip emulator
Copyright (c) 1994-1997 Michael Schwendt <sidplay@geocities.com>

This version of the freely available SIDPLAY emulator engine source code
contains the following contributed or derived work, in no particular order:

  Noise generation algorithm is used courtesy of Asger Alstrup Nielsen.
  His original publication can be found on the SID home page.

  Noise table optimization proposed by Phillip Wooller.

  MOS-8580 R5 read-out combined waveforms by Dennis Lindroos.
  
  MOS-6581 read-out combined waveforms by Dag Lem.

  Peter Kunath provided an examplary source code to examine an Amiga
  icon file.
  
  Vincent Penné contributed a fixed-point class.

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  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA