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An interface to connect two Amiga/Atari/C64 joysticks to the PC gameport.

  News
30.12.2005 I am very sorry, but I can not offer the interfaces for sale any longer. But you can easily build your own interface. You might also consider to buy the USB-remake of the classic Competition-Pro arcade joystick.
13.03.2003 This website is online again ! Competitor interfaces are also available.
25.09.2001 PC Competitor Interfaces available again !
15.06.2001 Sorry, all devices are sold out ! But new ones are in production.
5.03.2001 PC Competitor Interfaces are ready for sale !
26.02.2001 Recently the competitor interface has been reviewed at Ami Sector One.
It is also recommended in the readers FAQ in c't 3/2001, germanys #1 computer-magazine.
 
  Why Digital
The PC gameport is designed for the usage of two analog joysticks with 2 buttons each. Analog joysticks are excellent for flight simulation, but have too long reaction times for aracde games. It is possible to use a joypad instead, but if one is not used to them they are unacceptable. If you once used a C-64 or AMIGA computer, you certainly have a joystick wich is still alive but can not be plugged to the PC gameport. To make this possible I created the interface. So you can use your joystick for arcade emulations like M.A.M.E. or the AMIGA emulator called U.A.E.
 
  Solution
The interface converts the digital signal to analog, using discrete ohm values depending on the joystick switches. This is basically the same way joypads work on the PC. It's all hardware, no software drivers needed.
 
  Compatibility
Windows Settings
To use two joysticks under Windows95/98/ME you have to add a second joystick device (2-axis, 2-buttons). Using Windows 2000 you cannot install two seperate joysticks; instead, you have to choose the Two 2-button joysticks on a y-cord option. Windows XP users have to set up an custom game controller with 4 axis and 4 buttons. The MAME and UAE emulators can be configured to use both joysticks by one game controller. C-64 Emulator CCS642.0B has built-in support for the adapter.

Joysticks
Generally all joysticks wich work on C64 and AMIGA can be used with the interface (but no lightguns, trackballs or mice !). These joysticks include COMPETITION PRO, Spectravideo QUICKSHOT, COMMODORE, ATARI and the SEGA gamepad (only A and B buttons work, not C). The interface supports 2 (different) firebuttons, and autofire is working. Unfortunately most joysticks do not have seperately wired firebuttons. They have to be modified by replacing the cable. This should be easy to do.

 
  Download
If you want to build the competitor joystick interface by yourself, here are the details for a "do it yourself" version:
Click here for a gif-image of the circuit.
Click here for instructions how to build it. (update 2.2.99)

 
  Related Links
Dirk Düsterberg's Homepage
Das Virtuelle Konsolen- und Computermuseum

WinUAE homepage for AMIGA emulation
UAE homepage
Official MAME homepage for arcade machine
Commodore 64 Emulator

 
  Copyright
The circuit was designed by Dirk Düsterberg, PCB layout and website by Christoph Stahl 1997-2003.

COMPETITION PRO, Spectravideo QUICKSHOT, COMMODORE C-64, AMIGA, ATARI, and SEGA are registrated trademarks.