RE: RE: Re: CP/M programming for the C128?

From: Baltissen, R (Ruud) (
Date: 2003-01-28 10:08:49

Hallo Mikael,

> But for me it's not an option, because I know even less about
> sending pulses over the serial cable to a drive than I know
> about CP/M... :-) 

This knowledge is not needed. What I meant was that the drive cannot know
with what it is exchanging data. You also can reason the other way around: a
normal C64 and C128 don't notice that 64HDD isn't a real 1541. Unfortunately
a speedloader will as 64HDD doesn't execute 6502-ML ie. it is a simulator,
not an emulator. But the C128 CP/M uses the original 8502- routines to
address drives ie. no reprogramming of the drive. So IMHO CP/M won't see at
all that the drive it is talking to a fake drive.

Another remark: a good source is the C128's own Z80-bootROM.

   / __|__
  / /  |_/     Groetjes, Ruud
  \ \__|_\


De informatie in dit e-mailbericht is vertrouwelijk en uitsluitend bestemd voor de geadresseerde. Wanneer u dit bericht per abuis ontvangt, verzoeken wij u contact op te nemen met de afzender per kerende e-mail. Verder verzoeken wij u in dat geval dit e-mailbericht te vernietigen en de inhoud ervan aan niemand openbaar te maken. Wij aanvaarden geen aansprakelijkheid voor onjuiste, onvolledige dan wel ontijdige overbrenging van de inhoud van een verzonden e-mailbericht, noch voor daarbij overgebrachte virussen.

The information contained in this e-mail is confidential and may be privileged. It may be read, copied and used only by the intended recipient. If you have received it in error, please contact the sender immediately by return e-mail; please delete in this case the e-mail and do not disclose its contents to any person. We don't accept liability for any errors, omissions, delays of receipt or viruses in the contents of this message which arise as a result of e-mail transmission.

       Message was sent through the cbm-hackers mailing list

Archive generated by hypermail 2.1.6.