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Originally Posted by mc6809e
You're right of course about the hardware already being there. Hmm. BPT doesn't change, but something appears on the bus claiming to be from channel B's DMA! (You mentioned addresses from B looking like B+0, B+0, then B+<something less or more than 16 at least)
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I meant in "normal" line mode, without setting B DMA enable bit in BLTCON0, BPT does not change.
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Is there any way to verify whether or not APT actually changes?
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Same method I used with B should work fine.
EDIT: APT does change. I didn't check if it changes exactly like in UAE but it does change.