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DMA fill screen works when broken on hardware #1344
I've been writing some (very dodgy) DMA related tests and I've come across a situation that has different results to hardware: dma_mode3.zip this ROM is a broken implementation of DMA.
The L and R buttons will cycle the colour value used for the DMA.
The DMA uses channel 0 to fill a single 16bit colour into VRAM 0x06000000 from a single copy source in IWRAM 0x03007EDC. The DMA control is 0x01009600.
This happens for me with all DMA channels in pretty much all permutations of DMA you can think of.