gba: improve video capture DMA

ares-emulator / ares

ares is a cross-platform, open source, multi-system emulator, focusing on accuracy and preservation.

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Closed png183 closed 3 weeks ago

png183 commented 3 weeks ago

Video capture DMAs should run only if the mode was enabled on scanline 162 of the previous frame, and should clear the DMA enable bit once complete.