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From: mgvalen@cs.vu.nl (Valent MG)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Problem trying to write fast keyb reading
Keywords: fast keyboard reading
Message-ID: <9633@star.cs.vu.nl>
Date: 11 Apr 91 13:51:42 GMT
Sender: news@cs.vu.nl
Lines: 25


To everybody.

I have a question or 3 (surprise !).
I'm trying to write a (fast) game in Turbo C on an AT, so I want
the keyboard-reading to happen as fast as possible. The fastest way
is, I think, using inportb(0x60). The problem now is, that the 
keyboard-buffer fills up, and because I'm not emptying it, I get the
buffer-full interrupt & bell. 
I could solve this by using getch() after each key-hit, but that
slows down the (fast) reading quite a lot.
So my questions are:
	- is there a way to turn that buffering off (and in this way
	  , also the checking if the buffer is full)? 
	  (In this case, I'll probably miss a few key-hits, 
	   but that doesn't matter.)
	- or some simpel way to check how full the buffer is, and
	  when necessary, emptying the buffer by clearing some bit
	  (and perhaps give an acknowledgement) ?
	- am I totally wrong and should I do the keyboard-reading
	  completely different (and what is that better solution) ?

			Thanks already from this side,
					
						Marco V.