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Old 17 January 2016, 14:14   #2
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 43
Posts: 20,647
It is 100% correct

Right side: single cycle at the very end of scanline is never available for the copper, free or not free. (reason unknown)

Change of pattern: I think (didn't really check anything) it is either WAIT or COPJMP (both have extra cycles that don't need to be free) that fit perfectly with unavailable cycle making following scanline 1 cycle "faster".

EyeQLazer by Scoopex uses same trick (note that at least screenshot in is from old emulator version that didn't work correctly)
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