From: Peter M <peterem AT pacific DOT net DOT au>
Newsgroups: comp.os.msdos.djgpp
Subject: Reading Joystick port
Date: Wed, 21 Jun 2000 13:40:08 +1000
Organization: Pacific Internet (Australia)
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi all,
I am experimenting with reading switches from the Joystick port, but
have struck a strange problem.

The code inportb(0x201) will correctly work when running under as a DOS
box in W98, but when I reboot to DOS from W98, it fails to read the
status and continually returns 0xFF.  The only possible solution I have
seen is a reference to writing out to the port before reading it (though
I suspect that this just to prep the positional controllers), but this
did not work.

Note that this problem could be due to me being a newbie to DJGPP, and
not having the correct environment set up under DOS.  I thought I had
CWSDPMI running/available but I am not too sure what I am doing at the 
moment :-)

Regards
Peter