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Mapper 28 (Action 53) seems to initialize wrong #6

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NovaSquirrel opened this issue Oct 13, 2020 · 1 comment · Fixed by #122
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Mapper 28 (Action 53) seems to initialize wrong #6

NovaSquirrel opened this issue Oct 13, 2020 · 1 comment · Fixed by #122
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@NovaSquirrel
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Action 53's mapper should power up with $c000-$ffff mapped to the last 16KB of the ROM. However, Mesen initializes all mapper registers to zero, so as soon as UpdateState() gets called, the first 16KB is put in $c000-$ffff because of a zero outer bank.
@NovaSquirrel NovaSquirrel added the bug Something isn't working label Oct 13, 2020
NovaSquirrel pushed a commit that referenced this issue Apr 15, 2021
@mkwong98
Merge pull request #6 from Perkka2/master
725e2ba 
Update EPSGAudio.h
@negativeExponent
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REGS have to be initialized to 0xff, then call UpdateState() in init instead of SelectPrgPage()

@negativeExponent negativeExponent mentioned this issue Sep 2, 2022
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Fix Action 53 initialization negativeExponent/Mesen
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@NovaSquirrel @negativeExponent