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GST 68K - Utility Microdrive IMAGE
Posted: Tue Jan 24, 2017 7:19 am
by genetika
Hi.
I know GST-68K mdv format is not compatible with QDOS.
Someone has an GST-68K utilities-mdv image to use with a QL-Emulator ? ...
Other solutions are welcome ....
Regards!
M.
Re: GST 68K - Utility Microdrive IMAGE
Posted: Wed Jan 25, 2017 1:43 pm
by tcat
Hi,
I do not know much about `GST-68K' OS, I found this link providing some info.
Not sure if that helps.
https://sites.google.com/site/ql68kos/
Tomas
Re: GST 68K - Utility Microdrive IMAGE
Posted: Wed Jan 25, 2017 5:11 pm
by tofro
The mdv clone programs that are around to create true sector images of microdrives could be of some help here and could maybe be able to create a copy if a bit of luck applies.
As the hardware is pretty much bound to Sinclair specifications, I'd guess the pure physical sector format on a microdrive should/could be identical to the QDOS physical format (That is, a header and 512bytes sectors). It could, however, be (and is very probable) that the map and directory sectors are in different places.
Tobias
Re: GST 68K - Utility Microdrive IMAGE
Posted: Thu Jan 26, 2017 4:06 am
by MaxRaf
tofro wrote:The mdv clone programs that are around to create true sector images of microdrives could be of some help here and could maybe be able to create a copy if a bit of luck applies.
As the hardware is pretty much bound to Sinclair specifications, I'd guess the pure physical sector format on a microdrive should/could be identical to the QDOS physical format (That is, a header and 512bytes sectors). It could, however, be (and is very probable) that the map and directory sectors are in different places.
Tobias
Would it be possible to write a dumping program which doesn't rely on the cartridge map and 'blindly' reads all the sectors?
Something similar to what floppy imaging programs do...
Max
Re: GST 68K - Utility Microdrive IMAGE
Posted: Thu Jan 26, 2017 10:41 am
by Martin_Head
MaxRaf wrote:
Would it be possible to write a dumping program which doesn't rely on the cartridge map and 'blindly' reads all the sectors?
Something similar to what floppy imaging programs do...
Max
This driver
http://www.dilwyn.me.uk/utils/MDIdriver107.zip contains a Machine code/Basic program which does a 'blind' read of a QL Microdrive cartridge and creates an image file of the cartridge. I don't know if it could be adapted to read GST-68K Microdrive cartridges.
Re: GST 68K - Utility Microdrive IMAGE
Posted: Sun Feb 05, 2017 3:15 am
by MaxRaf
Thanks Martin,
very interesting!

Re: GST 68K - Utility Microdrive IMAGE
Posted: Sun Feb 05, 2017 4:03 am
by ql_freak
Sorry because I complain!
It is IMHO absolutely useless to try any other other operating system than QDOS (SMS.../Minerva/...) on a QL (QL Compatible).
Even the original QDOS is very rarely used (I'm afraid there are less than 2,000,000 people, who use [have owned] a QDOS compatible operating system).
QDOS on modern systems is now really superb, and there is a lot of stuff (of soft and hardware) of it. So as long as there are no academic reasons to try "strange" operating systems on the QL, DON'T DO IT!
BTW: My new favourite is the Shell from Dilwyn's page:
http://www.dilwyn.me.uk/shells/sh112.zip
P.s.: My (very old) ls program runs perfectly with shell :-) (e.g.: ls -l)
Re: GST 68K - Utility Microdrive IMAGE
Posted: Sat Feb 11, 2017 2:14 pm
by tcat
Hi,
Just trying to understand what use `GST-68K' can nowadays have. It could be fun to explore, perhaps for people having at least two black machines, so one could have ROMs replaced with GST thing.
I remember seeing a YouTube video with `GST-68K' in action running `Psion CHESS'. I wonder if standard QDOS executables can be easily made to run under `GST'?
S*BASIC progs wont's run though, as there is no support by the OS, unless some kind of compatible BASIC interpreter is loaded first.
Tomas
Re: GST 68K - Utility Microdrive IMAGE
Posted: Sat Feb 18, 2017 9:27 am
by tcat
Hi,
Having said that, brings also another idea.
How many s/w titles have ever been released for `GST' OS?
Tomas