Subj : Re: Megasoft shadow, by Jack Cornelius
To   : All
From : sales@cbmstuff.com
Date : Tue Aug 27 2019 10:59 am

> Hi bluebirdpod,
> > Hey Womo, did you ever figure out, what speed dos, JD stole to use in
> > the SC+ rom ??
> > most likely he patched a speed dos to use.
>
> no, I did not find any bigger similarities between
> SpeedDOS and the SC+ ROM. For JiffyDOS I cannot tell
> since I didn't investigate that in depth.
>
> There are of course greater similarities between
> some routines from the Professional-DOS speeder
> system (RapidDOS Pro in the US, DemonDOS in the UK)
> and SC+, some routines that make absolutely no sense
> for SC+ since it misses the GCR decoding tables as
> well as the nybble shifting hardware.
>
> Maybe this was bad coincidence or just made to
> obfuscate any code reverse engineers, I don't know.

What are you referring to here?

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