On 2013-05-31 20:50, ard at p850ug1.demon.co.uk (Tony Duell) wrote:
Have you looked at the hardware and the system tracks on the disk? This
thing, for all it claims to be the disk drive for the HX20, etc, is
actually a full Z80-based computer running something very close to CP/M
(!). I often wonder how hard it would be to use it as such (there's a
second serial poot too, if you need it).
Yes. fasinating. I am trying to disassemble it, but started with the
boot ROM. The TFDOS as it is called, will be next.
As it has everything; enough RAM, disk controller, serial port, there
should be no reason why it should not work. I might try it, maybe even
before retirement ;-). With the information in "The Programmer's CP/M
Handbook" it should be no problem.
-tony
Fred Jan