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Originally Posted by Photon
I remember you'd write
dc.w $3fdf,$fffe
to wait for line $40, i.e. you'd wait until the raster got off-screen on the previous line, and then you'd have more raster time available to change palettes etc.
To make the copper continue beyond raster line 256 on PAL Amigas you'd write
dc.w $ffdf,$fffe
otherwise you'd get nothing below NTSC "screen window", even though that seems to have been "fixed" in WinUAE?
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You mean line 200? That was actually a pain in the arse when you had to have that extra bit in, cos it messed up all your loops for processing full screen fx into the PAL area