You mean this line: ioamhram[0x100] = 0x0F;//joypad initial value
Of the SGB enhanced games I’ve tried, that’s the only one I’ve noticed. I’ve also tested:
Contra: The Alien Wars Kirby’s Dreamland 2 Kirby’s Block Ball Kirby’s Star Stacker LoZ: Link’s Awakening DX Wario Land II
Dream Land 2 and Star Stacker are supposed to use SGB internal sounds when played on an SGB, but nothing seems wrong with the sound on either of those with the bootloader enabled.
I’ve submitted a Pull Request regarding fixing DK94 here:
@SkyHighGam3r I don’t think you realised what was to follow when you asked the original question! I remember you asking what videos should you do a while back. I say a little “how to” on setting the bios screens up is in order 
Thanks to all those involved in making this work. I hope it gets a mention in the next blog update.
Well everything have been merged, let’s hope things work as they should now. I’m eagerly awaiting Gambatte to be built…
Built it myself earilier. Everything looks good to me 
Ah man, I wish I could build these cores myself sometimes. Care to share your build? It might take the entire weekend before it hits the buildbot.
Thank you very much!
It’s really easy to setup a portable msys2 environment on Windows: MAME NoNag Compilation Guide for Windows
For gambatte you would follow that guide up to step 4 and:
clone https://github.com/libretro/gambatte-libretro
cd gambatte-libretro
make
Then you’ll have a fresh .dll waiting in your home/gambatte folder in a few seconds.
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Thanks for the tip, I’ll keep this in mind. Can this be applied to other cores as well? There have been some changes to Nestopia and it haven’t been built for a while with these changes.
So if I follow your guide, maybe I can build it myself???
As for Gambatte right now, everything seems to be in flawless condition. Haven’t even noticed a single hiccup and DK94 is just perfect. Gambatte feels complete right now.
Question: How come the CRC mismatch between my built Gambatte-Libretro core and Vaporeon’s? Shouldn’t they be the same?
The CRC for mine is 4c00ff11 and Vaporeon’s is 8bba0382 They’re the same in size and all.
EDIT: Scratch that, the CRC is different every time you build it and I figured out how to build both Nestopia and DeSmuME.
It’s great to be able to build stuff yourself!
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Differences in the toolchain and timestamps will cause that. You have to go out of your way to get reproducible builds.