(01-23-2015, 09:08 PM)Fiora Wrote: I think this is only true of the interpreter; the JIT just makes it a single write. I didn't actually know that a single write was the correct behavior though; I suppose the interpreter should be fixed.
I was going off what Delroth told me when I questioned why the FIFO write check in WriteToHardware only verified the page instead of the whole address. I have no idea what physical memory gets hit if you poke past the FIFO mmio, but even if it's mirrored through the whole page it will definitely miss the write-gather pipe and who knows what that will do.