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AWJ |
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Reged: 03/08/05
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Posts: 936
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Loc: Ottawa, Ontario
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Re: DU: Street Fighter just got more hyper
05/19/16 02:53 PM
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> Sorry if I'm being really, really thick and noobie but MAME already has the
> following:
>
> hsf2 Hyper Street Fighter II: The Anniversary Edition (USA 040202)
> hsf2a Hyper Street Fighter II: The Anniversary Edition (Asia 040202)
>
> If this Japanese release is also a 040202 revision then how different is it going to
> be to the existing versions, other than the language? Or are Japanese versions always
> different, even with the same revision number?
In all of the (admittedly few) CPS2 games I've looked at, if the revision date is the same then the ROM data will be identical, just encrypted with a different key and with one changed byte that identifies the region. The game program uses the region ID byte to select which warning screen to display, what language to display text in, and whether to enable region-specific features like the WDUD screen for the US or the extra bookkeeping displays for Latin American regions.
That's why region hacks for CPS2 games are possible; you just have to change one byte and the game configures itself for that region.
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