Date: 30 Jun 1995 15:38:06 -0500 (CDT)
From: jmccawle AT cs DOT uno DOT edu (Cap'n Hardgeus)
Subject: re: keyboard interrupt in DJGPP
To: djgpp AT sun DOT soe DOT clarkson DOT edu
Cc: jmccawle AT jazz DOT ucc DOT uno DOT edu


        Hello DJGPP'ers...I am just following up to a post I made a while
ago.  I was asking about certain keypresses messing up my keyboard interrupt.
I thought that maybe certain combinations would send scrambled scan codes...
but in fact I have discovered that certain combinations will send **NO**
scan codes!  This is in fact a problem with the keyboard itself and nothing
that I have done.  I tryed it on two separate computers and found that 
different combinations cause trouble on each of them.  I configured DOOM with
the same key combinations...and sure enough it wouldn't work either!  Just 
for the sake of science I tried Terminal Velocity as well, and the same
thing happened.

        I can only assume that this doesn't happen if you use the extended
keys, since I've seen DOOM on a million computers using almost all extended
keys. ( alt, shift, ctrl etc. )  Note that the problem arises when you press
certain key combinations of three or more at a time.

        BTW, I still haven't figured out the problem with my keyboard 
interrupt causing havoc with printf...i even tried 
disable();printf("...");enable();
But to no avail.

John R. McCawley III
Cap'n Hardgeus