Re: TED badlines, how do they work?

From: Segher Boessenkool <>
Date: Fri, 2 Sep 2011 19:07:33 +0200
Message-Id: <>
>> es, but you already have 2 RAM blocks with their own access control.
> I doubt we will be able to solve this until we get hi res die shots  
> of TED though. The one available at
> doesn't help much. There is still a lot of logic visible on it  
> though and TED doesn't have to accomodate sprite logic. So I could  
> imagine a more sofisticated state machine for character and  
> attribute fetches (compared to VIC-II).

 From that picture, I'm pretty sure it is a single 16x40 RAM.

It seems to the right of it is the X and Y decoders; and to the right
of that are various registers to do with X and Y (Y on top, X at bottom
-- 9 resp. 10 bits).

I guess the top is the pixel sequencing and analog.  Hard to tell, we
can only see the metal, and that not very good at that :-)


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Received on 2011-09-02 18:00:18

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