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Old 01 April 2011, 05:53   #34
Join Date: Jan 2010
Location: Kansas
Posts: 1,284
Originally Posted by PeterK View Post
Thank you for your suggestions. Indeed, the black pixels won't need the SNE. I've overseen this, because in some previous versions there was still a certain level of darkness (AND.L #$00F1F1F1, D1) used as the criteria for transparency and also a little different code.
It tricked me at first too . I could see experimenting with the algorithm more to better recognize transparent pixels. The current algorithm is fast though.

As you already know, my knowledge of the 68040/60 and the according optimization is nearly zero. But I will make use of your hints, of course. THANKS!
It's never too late to learn . The Natami N68k processors are designed very similar to the 68060 so it will become more common. The change/use penalty is explained in this Natami thread...

I've improved my understanding and assembler coding from this thread as some concepts like this are not documented very well.
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