changing keyboard codes going into the UNIX PC

[David Solan]

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	Some time ago, Mike Ditto posted the source for a dynamic keyboard
remapper for the UNIX PC (called "keyfix"), which changed the copy of
/unix in core as the system was up and running.  Its usage was:
keyfix <keynum> [ <norm> <shift> <ctrl> <flags> ].  Since these
changes to the keyboard are usually permanent, I thought I'd do it the
dirtier (and much faster) way of making permanent changes to /unix
itself.  The following uses adb and of course, a LARGE NOTE OF
CAUTION: BACK UP YOUR /unix AND IF YOU MAKE ANY ERRORS, THEY COULD BE
DISASTROUS TO YOUR SYSTEM!!!!!!

	So, if you wanted to execute the command:
keyfix 0x25 0x7f 0xff 0xff 0
to change the Reset/Break key (0x25 in /usr/include/sys/kbd.h) to
issue the break command when depressed without shift or ctrl, and be
non-repeatable, you could instead do:
adb -w /unix
keymap+(8*25)?4x
?w 0x007f 0x00ff 0x00ff 0x0000
$q
and you would get (in UNIX 3.51) the following confirming output:
keymap+128:	ff	ff	ff	0
swpulse+21a2:	ff	=	7f
swpulse+21a4:	ff	=	ff
swpulse+21a6:	ff	=	ff
swpulse+21a8:	0	=	0

The corresponding address for the Del/Esc key is: keymap+(8*1b)
The corresponding address for the space key is: keymap+(8*20)
The corresponding address for the _/- key is: keymap+(8*2d)
The corresponding address for the ?// key is: keymap+(8*2f)
The corresponding address for the ^/6 key is: keymap+(8*36)
... and so on.

	I tried it out and it worked fine.
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		David  Solan
		Objective Programming Incorporated
		Post Office Box 123
		Norwalk,  CT  06856
		Voice: (203) 866-6900
		attmail: <!dsolan> or <attmail!objctv!kdavid>
-- 
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David Solan                   rutgers!rochester!kodak!pcid!gizzmo!kdavid
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