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barbudreadmon / fbalpha-backup-dontuse-ty

Deprecated port of Final Burn Alpha to Libretro (v0.2.97.43).
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latest version of fba .42 causes 2 specific games to not work #159

Closed MindController closed 6 years ago

MindController commented 6 years ago

Updated to .42 using retropie, and now both Violentstorm and Metamorphic Force refuse to work. I have used clrmamepro to convert to .42 using the updated dat file, but both games have bad sectors show up on the ram rom check. But it's only these games, no other games I have based on the .40 fba rom set have any issues.

Possible for anyone else to try and run these games to see if the issue is on my side?

ghost commented 6 years ago

both of those games run fine, at least the parent roms.

screenshot_2017-11-22_16-36-56 screenshot_2017-11-22_16-38-26

barbudreadmon commented 6 years ago

Try removing the .nv files corresponding to those games from your save directory, they could be corrupt or not compatible with the current version of fbalpha.

ghost commented 6 years ago

@MindController are you by any chance using retroarch 1.6.8 or newest 1.6.9?

Interestingly, i update retroarch to latest version and these games now shows bad ram areas with REWIND set to ON. turning off REWIND makes the game work(probably affects other games too...

A similar issue with rewind in latest retroarch also causes loading issue in PC-FX if rewind is set to ON.

MindController commented 6 years ago

@retro-wertz - yes im using the newest 1.6.9. And that was the issue. With rewind enabled, violent storm and metamorphic force gave me the fails on the ram rom check, but disabling fixed the issue. Still very strange it only affects 2 out of the 10 arcade roms I have for Final Burn Alpha. But thanks so much for helping me get it resolved!

andres-asm commented 6 years ago

@retro-wertz I don't think the PCFX crash is related at all. I suspect some pointers may be included in the savestate so when rewinding some data ends up as garbage.

ghost commented 6 years ago

@fr500 yeah, i was about to update this post :D

anyways the issue here is related to rewind, bad rom issue does not appear with rewind off.

barbudreadmon commented 6 years ago

Both those games are from the same driver (https://github.com/libretro/fbalpha/blob/master/src/burn/drv/konami/d_mystwarr.cpp), so the pointer issue would make sense

barbudreadmon commented 6 years ago

Reported upstream after doing some test with fba standalone : http://neosource.1emulation.com/forums/index.php?topic=1731.msg24737#msg24737

barbudreadmon commented 6 years ago

It should be solved, let me know if you still have issues.

ghost commented 6 years ago

as always, great work. Works fine on my end. rom starts with rewind ON now.