Innovation SSI-2001 Open SID Player for MS-DOS (osp2001)
(C)2018 by Alexander Ozumenko <scg@stdio.ru>

This player based on SID module code of Open Cubic Player 2.6.0pre6.
http://cubic.org/player/

usage: sidplay.exe /?
       sidplay.exe /I
       sidplay.exe [/Q] [/V] [/P <port>] <file>

  /? - show usage
  /I - show program version
  /Q - enable quiet mode
  /V - enable verbose messages
  /P - SSI-2001 base port: 0x280, 0x2A0, 0x2C0, 0x2E0

Runtime keys:
  <ECS>, <Ctrl-C> - exit
  <P>, <Space> - play/pause
  <N> - next song
  <F> - fast forward 5s

Limitation:
    * only PSID files 1, 2 and 2NG versions are supported
    * the player engine is not able to play the RSID files
    * the player can not jump to the previous track

Release notes:
0.2 - 2018.08.29
    * fixed MOS 6510 CPU model
    * updated timer control algorithm, timer scheduler became more accuracy

0.1 - 2018.04.03
    * first release