Re: Dynamic RAM / memory expansion shoehorning hidden refresh

From: john/lori (
Date: 2001-01-19 18:19:34

> Then you need a
> circuit to generate a RAS-pulsen during the low halve of CLK2 which does the
> trick.

Not sure I understand but..

This would probably work on a VIC 20, but on the C64 this is just
the time the VIC is messing with the DRAM

So now I'm wondering if anyone can think of a good time to do
a hidden refresh. (on the C64)

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