25 Dec
2010
25 Dec
'10
4:16 a.m.
It's too bad that nobody brought up CP/M on the
Kyoceras (Radio Shack
model 100, Nec 8200, etc). THAT would have been a project.
I think a lot of people (including myself, amazingly) tended to use the
built-in software of the M100, so no reall need for CP/M.
It probably wouldn't be that big a modification (the main part being
re-mappling the memory so there's RAM at location 0 -- in fact a
programmable invesion of A15 would do it). But you'd only have 32K RAM
and an 8085 processor which would limit what you could run.
Or on the Epson RC20!
The Epson TF20 (floppy drive for the HX20, PX4, PX8, etc) contains a Z80
and 64K RAM. Oh, and a boot ROM that is mapped out after booting. I have
never analyhsed the system disk in detail, but I have a feeling this
thing runs CP/M internally.
-tony