Re: C64 MMU POC

From: Istvan Hegedus <hegedusishe_at_gmail.com>
Date: Wed, 9 Oct 2019 23:29:38 +0200
Message-ID: <CAJG-dDSqTQ8_HAXGmu5mPeZbHw+X1pHGDHC0kO7fsc83ZRuhTA_at_mail.gmail.com>
Hi,

I assume you refer to VIC-II (and in general the 4k I/O block on a
> C64). I haven't done any testing myself but I would be really surprised
> if writes bleed through.
>

I have done measurements on TED and in the I/O block area CAS is not
activated thus the write does not bleed through to ram.
Most probably VIC-II behaves the same

Istvan
Received on 2020-05-29 23:03:05

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