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Why does new Mame builds require new romsets?


Nocta

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Hi everyone,

I'm actually trying to build a working Mame library but I encounter a lot of non supported roms with the new build (my romset is at least two years old).

I know that it's a common issue with Mame but I wonder why is this the case only with this emulator?

Thanks in advance.

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The newer dumps are more accurate when compared to how the real hardware works. One example of this is progress with CPS2 --> http://arcadehacker.blogspot.com/2017/03/a-journey-into-capcoms-cps2-silicon.html

 

There's also instances where MCUs are decapped/dumped so the simulation of it can be scrapped which changes which files are required for MAME

People should always upgrade their romsets and use the latest MAME.

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Thanks a lot for this technical explanation B2K24, I understand better now. Time for me to set up a new MAME library. :shy:

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Thanks a lot B2K24, it's super informative, exactly the kind of info I needed.

Is there a way to know which of my games are still compatible with the newer version of Mame or do I have to redownload them all?

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There is a site that SentaiBrad calls the dome of pleasure. The easiest way to upgrade your set is to join a full post and point it to the collection that you already have. It will only download what has changed and then you can clean un-needed data with a software called T-check (it's on their forums)

 

I don't wish to break any rules here so I'm being careful and discreet about what I say here. I can probably give better answers if you PM me. You're welcome to do so :)

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Thanks again B2K24, you got a PM.

You're right, I don't want to cause any trouble here.

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