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[HLE BIOS] Temporal glitched screen after restarting some GBC games #2152

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RafaelTrepaUnCarballo opened this issue Apr 29, 2021 · 1 comment
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[HLE BIOS] Temporal glitched screen after restarting some GBC games #2152

RafaelTrepaUnCarballo opened this issue Apr 29, 2021 · 1 comment
Labels
hardware:2D Issues in the 2D/pixel pipeline subsystem platform:GB/GBC Game Boy/Game Boy Color-related issues
Milestone
mGBA 0.9.2

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@RafaelTrepaUnCarballo
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RafaelTrepaUnCarballo commented Apr 29, 2021 •
edited

Without an official BIOS, some GBC games may show a garbage screen after doing a hard reset (ctrl+R) in the middle of certain scenes. It usually only lasts one second, but some can lasts longer.

A few examples:

  • Donkey Kong Land (reset in the title screen, also gameplay)
    Donkey Kong Land (USA, Europe)-3

  • Pokemon Yellow (reset in the title screen)
    Pokemon Amarillo-0

  • Infinity (pretty much any moment)
    infinity-1

  • Meitantei Conan - Kigantou Hihou Densetsu (Japan) (SGB Enhanced) with english patch
    Meitantei Conan - Kigantou Hihou Densetsu (Japan) (SGB Enhanced) ENG-0

-Alone in the Dark: New Nightmare

THe issue is present in the most recent build (0.10-6970-91874af0c) but also in old stable ones (0.8.4)
@endrift
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endrift commented May 7, 2021

Yeah I've seen stuff like this too. It's been kinda low priority for perhaps obvious reasons.

@endrift endrift added hardware:2D Issues in the 2D/pixel pipeline subsystem platform:GB/GBC Game Boy/Game Boy Color-related issues labels May 7, 2021
@endrift endrift added this to the mGBA 0.9.2 milestone May 7, 2021
@endrift endrift closed this as completed in c633d08 May 7, 2021
endrift added a commit that referenced this issue May 9, 2021
@endrift
GB Video: Clear VRAM on reset (fixes #2152)
f84a8f7
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hardware:2D Issues in the 2D/pixel pipeline subsystem platform:GB/GBC Game Boy/Game Boy Color-related issues
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mGBA 0.9.2
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@endrift @RafaelTrepaUnCarballo