From: Ethan Dicks (ethan.dicks_at_gmail.com)
Date: 2008-03-18 16:06:49
On Tue, Mar 18, 2008 at 2:48 PM, <ruud.baltissen@apg.nl> wrote:
> Hallo Ethan,
> > then a) bump it up to at least 32K of SRAM,
>
> IIRC you need at least 48 KB of RAM for CP/M 2.2
I wasn't sure, but that makes sense.
> > and b) add some form of UART for a console
>
> Why? The idea is that the Commodore is your console and diskdrive
> in-one. But it could come in handy for debugging.
I missed that the first time around... also, I don't have a C-64 here,
just a few PET boards.
> > then c) work out what to do about mass storage.
>
> Indeed forgot to mention that. It shouldn't be difficult to connect
> Jim's PCB to the Z80 card. And AFAIK CP/M supports 512 bytes sectors.
Perfect - _that_ I have here.
> I'll make a dump of the ROM of the CP/M card for the BBC. And I just
> remembered that I should have one of Elektuur/Elektor laying around! I
> also made PDF's of various CP/M documentation so this can help as well.
Sounds good. I think I understand what you were suggesting now. I'll
still be interested in seeing how it goes.
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