Re: commodore keyboards hardware details

From: Rob Clarke <>
Date: Sat, 24 Nov 2012 13:37:33 +0100
Message-ID: <>
There's a test program for the VIC on this thread from Denial which 
discussed the VICE KB emulation.


prg :


On 24/11/2012 10:30, Groepaz wrote:
> hy hackers!
> i have another question mostly for the PET and CBM2 guys... i have added
> better emulation of the keyboard matrix to x64 the other day, and some part of
> the code turned out generic enough that it can likely be used for any other
> keyboard that works similar - ie which is a simple matrix of switches with no
> diodes preventing shortcuts in the matrix.
> so the question is: do the PET and CBM2 keyboards work the same?
> also if there exist keyboard test programs for these machines (actually, any
> machine except c64 - ie also +4,vic20 etc), which eventually can be used to
> verify if certain effects work (such as ghostkeys when pressing several keys
> at once), please point me to them :)

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Received on 2012-11-24 13:00:24

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