On Mon, 21 Sep 1998, Laurens Holst wrote:
> :protection probblem I need Help ! I can guarantee, that this proggram will
> :be simply impossibble to be used for pirate copying.
>
> Anyway, so if you want to use a copy-protected game you'll still have to
> insert the original disk? Then what's the use of it? Oh, ofcourse, the speed
> of your harddisk compared to your diskdrive is...
NO, NO, NO !!! Do you really think, that I'm this stuppid ???
To avoid pirate copying, there is much user friendly ways to do that, than
inserting that losted original disk ! I will tell something about that
system and I'll bet my head, that no one is able to crack that code these
days. The basic idea is, that it will generate a .DSK file, that is just
that same format, that we are used to see it, and it can be copyed freely.
.DSK files do not support any error emulation, so this proggram will also
generate a .ERR file, that includes all needed information about the copy
protect. This file is anyway coded by using things like HDD name, DISK-ROM
checksum, SUB-ROM slotid as a key to open that file. So if this file is
copyed to another computer, it can not open it, check-sum will fail and
computer will ask you just install this game again to HDD. Ofcource, if
that game had no protection, you had no probblem.
I don't say, that this will be 100% piracy proof, but atleast this makes
it impossibble to send not cracked games trough internet. And if someone
thinks, that he can disassemble my routines, then feel free to try. They
are made so, that you can't change even one byte without destroying whole
proggram. This is because my proggram is not in Z80 format, but there is a
routine to open it, and that routine uses it self as a key to rest of
code. There is at this moment also 5 other proggram parts, that are going
to make crackers head to blow off. So... I think it is safe. Atleast I
have looked at so many protections, that I know, what they did wrong...
I'm not going to make same mistakes again.
> :2. A new MSX tR demo. That project is only started. I have just first part
> :ready, but it is once again something, that gets everything out of tR !!!
>
> Nah, don't have a turboR...
I'm sorry :-(
> :3. FM-PAC emulator for MSX1 and Music Module. This project is just for
> :fun and learning how these modules work. I can't think any use for it.
> :Still missing Voice setup emulation.
>
> How do you know the hardware voice-settings of your FM-PAC??? (or is that
> exactly what your problem is?)
This is one of my probblems, but it still has also other missing things.
I think, that I just have to listen what should they almoust be...
> :4. Portuguese keyboard emulator. This project has just started...
Availabble soon for tR
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