I seem to remember from years ago that the protection systems using the
FORMAT random number (the cartridge "fingerprint") can be re-created on a
new microdrive cartridge with a POKE_W to the relevant system variable
(probably the 'random number seed' ) just before a FORMAT command. As I
haven't got technical info to hand at the moment, I can't remember the
details, though I think it might be sv_rand (in QDOS terminology) at offset
$2E in the system variables. No doubt if my memory is as bad as usual
someone will correct me!
--
Dilwyn Jones
----- Original Message -----
From: "Ralf Reköndt" <[email protected]>
To: <[email protected]>
Sent: Saturday, June 06, 2009 3:25 PM
Subject: Re: [Ql-Users] Commercial game copy protection mechanisms
Try to look for "QLone" from Ultrasoft or "Locksmithe" from ZitaSoft
(Steve Jones).
Locksmithe is a bit better if the copy protection goes a step beyond the
MDV "magic number".
The most worst protection mechanism is in software from "Talent". No
chance without detailled knowledge in machine code.
BTW: Pyramide has released a Toolkit "Nucleon", which also contains a
mechanism (for the user, not as a protection for the software itself) to
protect MDV (and it works...surprise..surprise...also on disks) at machine
code level. Maybe they have also used it for their games.
"Wanderer 3D" is written in machine code (AFAIK), so it might be a bit
difficult to get it "freed". I remember such "freed" versions going round
in the 80s. Anyway, "Wanderer 3D" writes directly in the screens area for
speed reasons on the QL and maybe do some other dirty things like
disabling the interrupts etc. So it might be better, to use it on a QL.
Ralf
Hi,
I wonder if I might impose once again and request some more help?
After recently transferring some files from microdrive to QemuLator, I am
having problems getting a commercial game
working.
The game is called Wanderer and was produced by a company called
Pyramide.
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