Re: Robo-1000 and IIgs compatibility?

[Antoine Vignau <antoine.vignau@laposte.net>]

Hugh and others,
Thank you for your messages, I'll connect the beast to my Apple IIgs
and see the level of compatibility with it.

I'd be interested in getting your disk images, I am currently scanning
the manuals and imaging the disks in order to send everything to the
Apple II documentation project. FYI, my Robo-1500 disks are in a
really-really bad shape, mainly unreadable, grrrr! That is not related
to the protection but to a bad disk surface, I'll try to clean it up.

As far the on-disk protection is concerned on the Robo-1000 package,
what you wrote is correct. The first checks are inside the HELLO file
where the protection reads data from a weirdly-formatted track $11
sector $01. Replacing the JSR protection with a BIT protection is
sufficient as there are no values used as a flag. But, you get a
dongle check afterwards while reading the license information. I must
plug the bitstick to go deeper in the analysis.

Antoine