On Tue, Oct 11, 2016 at 07:05:26AM +0000, Baltissen, GJPAA (Ruud) wrote: >Next step: >- replace with 41256 (= 7 bits refresh) >- add 6520 or 6522 + a bit of logic > >= CBM with 512 KB Isn't it only 256 KiB? I did that on my C128D, expanding it from 2*64 KiB to 4*256 KiB: http://www.zimmers.net/anonftp/pub/cbm/documents/projects/memory/c128/1028/index.html This is based on a design that was published in the Finnish computer maganize MikroBITTI for the Commodore 64. I translated the article into English: http://www.zimmers.net/anonftp/pub/cbm/documents/projects/memory/c64/256kB/index.html Marko Message was sent through the cbm-hackers mailing listReceived on 2016-10-11 10:00:02
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