Hi guys, I'd like to ask you a question: would you like to get support
for 40 track disks and disk images in formats other than Speed DOS and
Dolphin DOS in The Star Commander? I've been asked to support Prologic
DOS, too, and now I want to know what other similar DOS enhancements
are out there... If you want your DOS enhancement to be supported then,
please, send me a TOTALLY EMPTY (!) 40 track disk image created on your
drive and then copied onto the PC with full disk copy.

I ask you this because the following incompatibility exists among these
DOS enhancements (all these apply ONLY to 40 track disks):

DOS enhancement         Offset of               Offset of
                        extra BAM entries       disk name & ID

Speed DOS               $C0 (unused area)       $90 (as usual)
Dolphin DOS             $AC (unused area)       $90 (as usual)
Prologic DOS            $90 (argggh!)           $A4 (argggh#2!)

This table shows that if you setup the 40 track disk mode incorrectly,
the BAM disk copy and the upcoming PC->CBM warp file copy won't find
the BAM entries for tracks 36-40 where they should be according to your
DOS enhancement and will tell you that the BAM is invalid or, maybe,
even mess up your disk.

It's also possible that I will delete the two entries 'Speed DOS' and
'Dolphin DOS' from the configuration menu and put the above mentioned
two offsets there instead. Then you can setup ANY DOS enhancements,
right? I'm open to suggestions. Bye!

Joe Forster/STA
sta@ludens.elte.hu
