Re: Joystick ports (Re: Please help: FCOPY PC 1.0 by TWA ? Weird version ?)

From: Jim Brain (
Date: 2005-07-25 06:22:00

Marko Mäkelä wrote:

>On Sun, Jul 24, 2005 at 01:42:12PM -0500, Jim Brain wrote:
>>To all:  I've heard this myth of joyports being read-only often.  Is it 
>>because the joysticks are read-only?
>I think I've seen documentation (maybe in the Linux kernel) of some
>fancy digital joysticks that use a bidirectional bitbanging protocol.
>Maybe they were for the Amstrad or some less widely spread machine.
The CMD Smartmouse uses the line in bi-dir mode to read the rtc IC you 
can order in the mouse.  My PSXJoy project uses it to swithc the unit 
into "enhanced" mode, where the actual PSX controller data can be read 
nybble-wise into the VIC/64.


Jim Brain, Brain Innovations                      
Dabbling in WWW, Embedded Systems, Old CBM computers, and Good Times!

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