Ha, that's one of the only things I changed from Photon's code. So, from this lesson I see that I shouldn't use longwords for accessing registers.
I only did so because the number was too big when I pushed my bitplanes up to 7.
Leave it with me as a little exercise and I'll see if I can figure it out.
I will be back though, with less hair, just you watch ;-)
Thanks Graeme for the other pointers too, I'll make sure I apply all of that knowledge too.
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