(WIP) Luca's MAME Drivers (12/11/13) - 模擬器

2012.11.10

The Odalisque Dance

Well, it seems obscure games coming from Italy are all the rage now,
see Haze's blog on the recent Planet Probe success. Congratulations
to all involved!

Below you'll find some preliminary screenshots of Harem running in
MAME. It's a 1983 arcade game by Italian I.G.R. There are several
reasons why this game is interesting, none of them unfortunately has
to do with its quality...

First, it's a rather obscure production (prototype?) as only one PCB
has ever surfaced since it was produced, and very little information
can be found online. Second, it's one of the few original arcade games
developed in Italy, and the only game ever produced by I.G.R., a
company which sunk into oblivion soon after presenting its game that
year at the ENADA exhibition (International Amusement & Gaming Machine)
in Rimini, Italy. Third, it's been in MAME for 12 years as non-working,
flagged as BAD_DUMP and encrypted, which surely scared devs off. And
lastly there's the subject matter, a game set in a chlichéd Middle
East where you have to chase women on camels, cars and tents and
forcefully take them to the beds at the bottom of the screen...

The hardware is yet another variation in the scramble.c driver. One of
the program ROMs is bitswapped (easily dealt with), but still parts of
it did not make sense code-wise. I figured out that's because opcodes
and data are encrypted differently, and furthermore there are three
different encryptions (6 bitswaps total) which can be selected at
run-time though a serial register.

http://www.lucaelia.com/images/mame_snaps/harem/0000.png
http://www.lucaelia.com/images/mame_snaps/harem/0001.png
http://www.lucaelia.com/images/mame_snaps/harem/0003.png
http://www.lucaelia.com/images/mame_snaps/harem/0009.png
http://www.lucaelia.com/images/mame_snaps/harem/0013.png
http://www.lucaelia.com/images/mame_snaps/harem/0016.png

I also shot a video of the game albeit colors are probably off, and
speech from a Texas Instruments TMS5110 chip is missing (any takers?):

http://www.youtube.com/watch?v=KfkFtTB66xU&feature=player_embedded

Many thanks to Dave Hollister for preserving the game in 2000, and to
hap( http://tsk-tsk.net/ ) for writing some notes on the encryption
while identifying the hardware type, which caught my eye.
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來源：http://www.lucaelia.com/mame.php/2012/The-Odalisque-Dance

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