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Old 22 September 2023, 20:20   #1042
Toni Wilen
WinUAE developer
 
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 49
Posts: 26,536
Quote:
Originally Posted by Toni Wilen View Post
Any "normal" shifter bit combination does not seem to work fully correctly. I guess this needs logic analyzer check..
Cycle diagram become ACCCACCC.. So this probably means A is A if D is not enabled at the same time. B or C or D at the same time -> C (Blitter RGA selection is a forest of gates in schematics, difficult to follow..)

This cractro only works if 3 bits gets injected (which fits with ACCC sequence)

If B skip gets disabled: A goes to B.
If Y skip gets disabled: X goes to Y and OUT

This combination results in 3 bits without breaking my other test statefiles, including two lives crew lotus 2 cractro.

EDIT: thanks to ross for logic analyzer trigger test executable
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