MAMEWorld Forums - News - Re: Decathlete progress + Peter / Morten might need some of the carts the DU dumped for the protection chips

Team Europe got in touch about
Name Club 1 & 2
Print Club Love Love 1 & 2

so it's just either

Winnie the Pooh 2 or 3 that are likely going to be needed now.

> By hooking up a bunch of hardware to the STV cartridge and hacking away at the
> program a bit Peter Wilhelmsen, Morten Shearman Kirkegaard and myself managed to get
> a bunch of decrypted data out of Decathlete. Morten managed to figure out the
> encryption / compression based on that, Samuel Neves then helped work out a few
> details to simplify things etc. and I got their code running in MAME.
>
> Not marked it as working yet because performance is awful (STV driver issue) but the
> game is playable, protection / encryption figured out. I'll do a full write up later.
>
>
> The same type of protection is used by the following games, provided by the listed
> protection chips
>
> 315-5838 - Decathlete (ST-V)
> 317-0229 - Dead or Alive (Model 2A) & Name Club / Name Club Ver 2 (ST-V) (NOT NAME
> CLUB 3)
> 317-0230 - Winnie The Pooh Vol 2 / Winnie The Pooh Vol 3 (ST-V)
> 317-0231 - Print Club Love Love / Print Club Love Love Ver 2 (ST-V)
>
> Name Club / Name Club 2 have a large amount of compressed data, so it *might* be
> possible to figure those out without access to the actual chip (and as the chip label
> is the same as DOA, that should be the same encryption) They encrypt the data used
> for the printer, so it isn't obvious onscreen that they're protected while Dead or
> Alive encrypts a single short string in the dumbest possible use of the chip ever
> from a protection point of view.
>
> 317-0230 (Winnie The Pooh) and 317-0231 (Print Club Love Love) only seem to provide
> us with a small amount of data, a block of SH2 code used on startup, so it's likely
> we'll need access to the chips to get the proper algorithm.
>
> AFAIK these are all DU dumps, so it shouldn't be an issue to get the carts in
> question to Peter. Since I'm not allowed to email Smit, I'm therefore using this
> place to put in the request, or at least a request to have them on standby.