RE: Building my monster C64 accelerator

From: Baltissen, R (Ruud) (
Date: 2003-08-20 14:28:44

Hallo Oliver,

> $000000 - $0fffff : 1MB Ram with standard memory mapping (C64 
> i/o space), i.e. 16 virtual C64s

I had the same idea but rejected it. But I later found out there was a flaw
in the reason. I still have some thoughts about it. For example: you still
need some I/O to tell the VIC where to find it data. Where do you locate
this I/O?

> Memory is slow ram due to extra cycles needed by the VIC.

Like replacing the 4164's by 41256's? Thus no fast SRAM? (if I understand
Pro: simplifies the design (no addressline latches needed)
Con: The virtual C64's (VC64) will only run at 1 MHz.

Hmmmm, nein, sorry, don't like that. 

> How about that?

Positive. But I have some small discussable doubts.

What about any comments/objections against piling all VC64's up in the first
64 KB segment?

   / __|__
  / /  |_/     Groetjes, Ruud
  \ \__|_\


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