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Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!ihnp4!inuxc!pur-ee!uiucdcs!seaburg
From: seaburg@uiucdcs.UUCP
Newsgroups: net.micro.pc
Subject: Moving BIOS keyboard buffer?
Message-ID: <24700069@uiucdcs.UUCP>
Date: Tue, 2-Oct-84 20:08:00 EDT
Article-I.D.: uiucdcs.24700069
Posted: Tue Oct  2 20:08:00 1984
Date-Received: Thu, 4-Oct-84 01:50:30 EDT
Lines: 19
Nf-ID: #N:uiucdcs:24700069:000:699
Nf-From: uiucdcs!seaburg    Oct  2 19:08:00 1984


Anybody know of a way to expand the BIOS keyboard buffer in PC-DOS?
The 15 key maximum gets frustrating sometimes.  

I've tried changing the buffer pointers that reside at 40:1a, 40:1c,
40:80 and 40:82 (if my memory is correct) so that they point to an
area of memory at 40:90 to 40:F0.  This area *appears* to be unused
according to the DOS BIOS listings.  The change makes the buffer about
40 keystrokes long, and it seems to work great.  However, after a
*long* time (i.e., 1/2 hour of typing) the system decides that its
tired of using the new buffer and enters the Twilight Zone. 

Any suggestions?

G. P. Seaburg
Engineering Psych. Research Lab
Univ. of Illinois 
...pur-ee!uiucdcs!seaburg