C64-C128 CP-M Cartridge Interest
brain at jbrain.com
Sat Dec 25 14:11:19 CST 2010
On 12/25/2010 1:52 PM, allison wrote:
> I looked at that port, it's not Z80 compatible. CP/M and all had to
> be re-assembled
> for the eZ80. Same would be required to run many of the apps and
Well, that's a disappointment. It looked like such a time saver.
> I've implemented CPm on Z80 with less than 16 pcs TTL, memory, EPROM
> and CPU total and that was using
> 32K ram x2 (there are 64K parts!). The IDE, CF or SD interfaces can
> be pretty trivial with SD and CF being
> preferred as CF does do an 8bit mode, and SD is a serial interface
> with only a few lines. That leaves the
> more interesting IO, user console, and ports to run a printer or
> communicate with maybe a PC. [note
> one port with the right protocol can do all that if the host is
> playing terminal, printer, storage].
Maybe I should just see if there is a schematic of a minimal Z80 system
(fewest ICs possible) and go from there.
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