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PPU Fix, Update mappers #310

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merged 2 commits into from Apr 17, 2022
Merged

PPU Fix, Update mappers #310

merged 2 commits into from Apr 17, 2022

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Kitrinx
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@Kitrinx Kitrinx commented Apr 17, 2022

This fixes the PPU to appropriately show the pattern table address as the vram address during the unused cycle 340. This is important for the MMC3 mapper to use the real inverted M2 timings as seen in the decapped chip schematics from furrtek. This fixes Wario's Woods while using the real timings. Also in this PR several of the cheat signals given to the mappers could now be removed.

@sorgelig sorgelig merged commit 78f5b59 into MiSTer-devel:master Apr 17, 2022
theypsilon pushed a commit to MiSTer-unstable-nightlies/NES_MiSTer that referenced this pull request Apr 17, 2022
PPU Fix, Update mappers

(changes from upstream commit 78f5b59)
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