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Messages - Papa Smurf

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Mega Drive/Genesis / Gunfight 3in1 chinese pirate
« on: June 09, 2013, 05:01:39 PM »
Hey All,

I was refered to this site for help with dumping and\or making sense of the data I've dumped
from a chinese pirate I bought that from what I can gather is currently not dumped to the public.
The game is gunfight 3in1 which is 3 justifier compatible lightgun games on one cart. The games
are a whack-a-mole game, T2 The Arcade Game & some star shooting game. The T2 is the gem
of the cart as it has lightgun support where as the original retail release did not. They all seem
to use the same engine with different gameplay (obviously). I've tried to dump it using a sega cd
and dump cable but the binary it outputs is not in a working state. I believe it must be some sort
of copy protection keeping it from being dumped properly with this method. A friend of mine looked
at the code quickly and he thinks it's using some sort of primative bankswitching and possibly is making
ram writes before initializing the banking routine from the rom data. I dumped it as a 32meg binary and
it what does dump seems to repeat 3 times over, weather or not that is just the 3 blocks of data for
the games or a loop it's stuck in while dumping I don't know and hope someone here does.



 The pcb has 2 epoxy globs I should mention also. I've tried all I'm able to do with my own know how
and I've reached a wall. I'm hoping someone here can help me free this game from it's epoxy prison :)

I have scans of the pcb attached and the binary that I've made I'm willing to email to anyone that can
help me out here and in the end with success the goal will be to share a working binary of this game
for everyone to enjoy be it in emulation or on real hardware.  I have a programmer that can support chips
up to 16bit 27c322 so if there is an option to wire the pcb up to the programmer to dumpit I would be willing
to try such a method. I spent alot on this cart but will do so for the greater good :)

Please reply and or PM me here if your able to help me get this done.

Cheers & Thanks,
Shawn

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