Re: The 16MB C64

From: Greg King (
Date: 2004-07-09 22:39:12

From: ncoplin; on Date: Tuesday, June 29, 2004, at 03:04 PM -0400
> Hello Ruud,
> > > 3) Is there any other expansion which might already use these
> > > two registers?
> > In that case, use $D07E and $D07F.  IMHO, using a CPLD means you can
> > pick almost any address you like.
> $D07E and $D07F are in the SuperCPU (I think), and so, no good.
> Hence, I want something that is free in both standard and upgraded C64s.
> I'll have to build the mod., and get someone to test it, as Maurice has
> answered me either.
> - Nick

Yes, the $D07x and $D0Bx ranges are SuperCPU registers.  And, $D200 to
$D3FF is SuperCPU RAM.

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