Re: [新聞] (WIP) David Haywood's Homepage
2013.03.06
"Less Balls than…. (insert celebrity name here)"
With the reverse engineering of the Gunpey compression scheme not
exactly going well I decided to turn my attention elsewhere for the
time being. (I did add a few things like the alpha blending, but it’
s not worth showing)
Smitdogg and the Dumping Union got a rare Data East board for a game
called Dream Ball, a gambling game.
The credit list I’ve been provided with is ‘J. Finney, TrevEB, Yohji,
Smitdogg, The Dumping Union’
http://mamedev.emulab.it/haze/pics2013/dreamball_small.jpg
(The Dream Ball PCB, picture provided by The Dumping Union)
The hardware uses common Data East components, and is clearly purpose
built for low-cost Gambling games, and appears to lack any form of
sprite chip (it has a Data East custom 71, but without being paired
with a 52 I guess it doesn’t handle sprites, probably just palette /
mixing)
The game boots to an NDK 1993 copyright, which is starting to become
interesting because it’s a company logo / name we’re starting to see
in several Japanese gambling games with little in common between them.
Anyhow, moving on to the emulation, being common components it was
pretty easy to hook the basics up, add some inputs and get a playable
game. It will give a payout error if you select Payout because the
hopper isn’t emulate, but beyond that it works, and was a trivial
addition.
http://mamedev.emulab.it/haze/pics2013/dreambal_1.png
Data East / NDK gambling game ‘Dream Ball’)
The game doesn’t seem to use any balls, not even lottery balls, but
the background of the Title Screen is awfully familiar. For anybody who
hasn’t already recognized it, it’s from Pocket Gal Deluxe another
Data East game, at least THAT one has balls.. What this means however
is it’s quite likely this ‘Dream Ball’ really is a Data East product,
just licensed to NDK.
http://mamedev.emulab.it/haze/pics2013/pktgaldx.png
(The title screen background is recycled from Pocket Gal Deluxe)
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來源：http://mamedev.emulab.it/haze/
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