Re: VIC-II cache corruption

From: Mia Magnusson <mia_at_plea.se>
Date: Tue, 22 Oct 2019 01:48:25 +0200
Message-ID: <20191022014825.000040f9_at_plea.se>
Den Sat, 19 Oct 2019 17:28:18 -0500 skrev Segher Boessenkool
<segher_at_kernel.crashing.org>:
> On Sat, Oct 19, 2019 at 06:01:56PM +0200, Michiel Boland wrote:
> > Apparently the VIC-II video chip has a 40x12 bit cache (I guess it
> > is a sort of built-in SRAM) to store the current row of 8-bit
> > characters along with 4 bits for color information.
> 
> Yes, it's a simple SRAM, 40 words, 12 bit each.

Are we 100% sure that it isn't made like DRAM? The data only has to
survive for the length of 7 scan lines which seems to be short enough
to fit even older DRAM technology. 


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Received on 2020-05-29 23:18:00

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