And also, as well as what Ross said, is your copper list in chipmem?
Also at start of code it should be move.l #custom, a2
Also your copper list sets bitplane 1 as $7c080 and bitplane 2 as $7dfc0, yet there is nothing in your code to suggest you are clearing or setting any data at those addresses.
Last edited by Galahad/FLT; 21 July 2021 at 22:28.
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