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Old 27 February 2019, 21:53   #3
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Join Date: Apr 2017
Location: France
Posts: 36
Thanks Phx. All tutorial wrote back in time I read, explain the bitplanes concept and then give the listing of a copperlist to explain how to display something. So you have to decode what the copperlist do and it's confusing and of course nobody state that the same can be achieve with the cpu or the blitter.

Thanks for the modulo hint I had forgot about, but I don't get your 3*40. Isn't it 4*40 (4 bitplans in my example) ?

Another question: on an Amiga with a 16 bits bus, is writing a byte or a word in the memory, have the same cost in term of cpu cycles and bus availability ?
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