Re: C64C case production molds resurfaced

From: Gerrit Heitsch <>
Date: Wed, 04 Mar 2015 20:34:31 +0100
Message-ID: <>
On 03/04/2015 08:23 PM, Jim Brain wrote:
> On 3/4/2015 1:20 PM, Gerrit Heitsch wrote:
>> The CIAs are not as easy to implement as one would expect. Digitally
>> yes, but then there's the analog side (the way the output drivers
>> behave) that will be hard to duplicate with todays technology. Some
>> programs use that with the CIA for the keyboard.
> Example(s)?

Don't have one at the moment.. It was a while ago we were discussing 
that in the and someone mentioned that multiple key presses 
together with the resistance of the keyboard itself would be detected 
differently depending on the output driver technology. Someone else 
mentioned examples.


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Received on 2015-03-04 20:01:54

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