Re: Hardware emulation of 6509 using 6502?

From: smf <smf_at_null.net>
Date: Sat, 28 Jul 2018 17:54:57 +0100
Message-ID: <10d0cddd-3d7c-2b82-ef62-bd43f30bb32e@null.net>
On 28/07/2018 11:25, Mia Magnusson wrote:

> And if you
> move screen ram after having done any pokes, the emulator won't always
> know what to do with some of the data you have poked.

My suggestion wouldn't work like that at all.

Screen and font can only be placed on certain boundaries, so when you 
poke a location it could build the font and the screen at two different 
places based on that POKE. It wouldn't matter whether that area of 
memory was being used for a font or screen.

You have 16k of ram for vic2, should be plenty to represent just the 
internal memory.
> Today there is of course no reason to emulate a VIC 20 on a C64, you
> can either get a real VIC 20 or emulate on a modern computer.

There is no reason to emulate a pet on a cbm2, or do any of the things 
we do.....
Received on 2018-07-28 19:00:05

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