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There is a no-slowdown version of metal slug 2, the romset is called mslug2t. I don't recommend increasing cpu clock, and if you do it anyway, do it on a per-game basis through overrides, because it's causing more issues than it solves.
I have increased it before when running Metal Slug games to eliminate the (inherent) slowdown.
@retroFuture You wouldn't happen to have some setting eating additional cpu ? Like retroarch's readahead/rewind or a "cpu clock" value above 100% in core options ?I disabled runahead and have never used rewind. I think the CPU clock is set to default, but I have increased it before when running Metal Slug games to eliminate the (inherent) slowdown. I may have forgotten to set it back to default when running the M92 roms.
Nice, so everything besides the raster should be ok ?
Which makes me remember that you showed me how to disable those, i'll give a try to implementing a speedhack dips for those irem boards soon.
Edit : turns out disabling the raster doesn't seem to improve framerate by much
Gracias dink, ni hablar.
The emulation of the Irem 90/92/107 games is pretty good in MAME2003-Plus, we updated the opcodes and the Iremga20 soundcore to latestNice, so everything besides the raster should be ok ?
MAME netting us a whole host of graphical and sound improvements, we also did a few more graphical fixes on a per game basis added in some
more speedhacks then got Air Assault / Fire Barrel, Risky Challenge and Undercover Cops (Alpha Renewal Version) playable.
Im quite proud of the work we did on those drivers
Yes, it's not a fair comparison, dink started fixing irem m92 emulation in 2014, prior to that it was really approximate (for both fba & mame).
I suspected that the FB/MAME comparison my be faulty. Anyway, I also wanted to ask if there is a dedicated thread for bug reporting or if it's preferable for me to make a post for each bug.
