Re: Schematic for 80 Column Adapter for C64

From: Ruud_at_Baltissen.org
Date: Sun, 18 Aug 2013 12:10:42 +0200
Message-ID: <52109DA2.3416.1D1239@Ruud.Baltissen.org>
Hallo Bil,


> Some schematics for some odds and ends, more coming.
> http://c128.com/commodore-c64-80-column-adapter

Thank you! I had a look at it and couldn't understand one thing: how 
can I write to the video memory? I'm used to schematics where either 
the the processor can read from/write to the video memory to the 
6x45 can read from it. 

MA0..13 are outputs of a counter that cannot be set to a certain 
value by the user, that is, AFAIK. If it can, OK, but then I still 
imagine that, for example, clearing a screen is a time consuming 
bussiness.

I hope that I'm wrong and missed something. I'm looking forward to 
comments!


--
   
Kind regards / Met vriendelijke groet, Ruud Baltissen
www.Baltissen.org







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