The data bus $21 before the write to $2100 ( inidisp_hammer_0f.sfc) I have been able to trigger a brightness glitch on my 3-chip and 1-chip consoles with: The data bus $80 before the write to $2100 ( inidisp_hammer_0f_long.sfc) ( hdma-2100-glitch.sfc, the bit 7 is set by a bra spinloop) A HDMA write to INIDISP on the first active HDMA channel, after the CPU has read/written a byte with the 7th bit set. ![]()
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