4 Players Adapter for Atari

@atari

Published in 

atari

 · 6 Dec 2020

Here are two separate instruction sets to build the adaptor:

----1----

Some games, such as Gauntlet II, allow four player to play at once. Here are the pin assignments for the cable. You need two female 9-pin plugs and one 25-pin plug (don't remember if it's male or female).

 Joystick 3      Parallel Port 
----------------------------- 
    1                6 
    2                7 
    3                8 
    4                9 
    6               11 
    8               25 
Joystick 4      Parallel Port 
----------------------------- 
    1                2 
    2                3 
    3                4 
    4                5 
    6                1 
    8               24

Parallel port pins 18-25 are all connected to ground.

----2----

I missed a chunk of this thread so I don't know if someone posted the wiring diagram. If not then

 Printer port           Joystick 1              Joystick 2 
 1           ---------->    6 
 2           ---------->    1 
 3           ---------->    2 
 4           ---------->    3 
 5           ---------->    4 
 6           ---------------------------------> 1 
 7           ---------------------------------> 2 
 8           ---------------------------------> 3 
 9           ---------------------------------> 4 
11           ---------------------------------> 6 
24           ---------->    8 
25           ---------------------------------> 8

Looking into the joystick socket

 1 2 3 4 5 
  6 7 8 9

Looking into the printer plug

 1  2  3  4  5  6  7  8  9 10 11 12 13 
 14 15 16 17 18 19 20 21 22 23 24 25

All info courtesy of ST format jan 1991 issue.