Deutsches CPC-Forum > Hardware

Reconstruction of Dobbertins famous HD20 hard disc

(1/4) > >>

TFM:
When Dobbertin released it's famous hard disc HD20 in 1990 it was the most wonderful mass media the CPC ever saw. Full support under BASIC, CP/M 2.2 and CP/M Plus. The CPC can even boot from the HD20.
 
Despite it's wonderful software the hardware design was kept quite easy. In principle it was a PC MFM hard-disc connected to an XT controller, which in turn was connected to the CPC.
 
Due to the huge amount of software supporting the HD20 it would be quite wonderful to rebuilt this device. Well, using todays components of course. What do you think?
 

TotO:

It may look interesting.  ;D

Gryzor:
Of course it'd be interesting, just for the fun of it.


When you say 'boot from the HD', how do you mean it?

TFM:
The X-DDOS 2.11 provided the commands |CPM,4 (5, 6 or 7) to boot from hard disc partition D (E, F or G).
 
This way you can boot up to four different versions of CP/M 2.2 or even CP/M Plus (!) from the hard disc. Without the need of any floppy disc.
 

arnoldemu:

--- Quote from: TFM/FS on 00:40, 01 May 13 ---The X-DDOS 2.11 provided the commands |CPM,4 (5, 6 or 7) to boot from hard disc partition D (E, F or G).
 
This way you can boot up to four different versions of CP/M 2.2 or even CP/M Plus (!) from the hard disc. Without the need of any floppy disc.

--- End quote ---
What if the roms and cpm were patched to use new interfaces, including rpalmers hd interface, symbiface etc.
Then you have the software that you know working with modern interfaces...

I already started to dissassemble the xddos rom, because I wanted to understand more about the dobbertin hd interface to emulate it.
I didn't make much progress yet.

Navigation

[0] Message Index

[#] Next page

Go to full version
Powered by SMFPacks Reactions Mod
Powered by SMFPacks Alerts Pro Mod
Powered by SMFPacks Mentions Pro Mod