Interesting to see that MAME gets "slower" with every release. Here's a little fps table:

And here's a link to Aaron Giles homepage.
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That is interesting. I wonder if the sudden slowdown at version 0.107 was due to the move to the new graphics engine MAME is now using?
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"The primary reason for this was that the Windows code was changed to always choose a 32-bit video mode if available, rather than supporting 16-bit video modes. The reasoning behind this decision is that palette values are computed to full 24-bit resolution internally, and even though Pac-Man doesn’t use more than 32 colors itself, those 32 colors aren’t perfectly represented by a 16-bit video mode."
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Ah Ha! I guessed it right!
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