4-player interface

The following file can be found on the net so I (krupkaj) assume it can be distributed here:

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.