Minimal CP-M SBC design

Allison ajp166 at
Mon May 5 06:38:18 CDT 2008

>Subject: Re: Minimal CP-M SBC design
>   From: "Joachim Thiemann" <joachim.thiemann at>
>   Date: Sun, 04 May 2008 22:27:36 -0400
>     To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at>
>On a tangent, I am curious: how difficult is it to make some form of
>CP/M-68k work on a bare-bones 68000 or 68008 system?  Long ago, I did
>wire up a 68008 system with leftover chips; but my memory is fuzzy.
>Can't even remember if the DTACK grounded trick works on the 68008, or
>if I forced access times somehow...
>What does CP/M-68k expect in RAM, ROM and I/O locations?

NO idea, the sources are on Gaby's site and likely manuals too.


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