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ilmenit
PostPosted: Thu Apr 23, 2020 1:02 pm 
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Joined: Thu Apr 23, 2020 12:57 pm
Posts: 11
Hi,
I wrote an article about optimizing C code for 6502, aiming CC65 compiler. I think it may be useful also for other programming environments, therefore sharing it here too. Enjoy the reading! All comments are welcome.
https://github.com/ilmenit/CC65-Advanced-Optimizations
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Chromatix
PostPosted: Thu Apr 23, 2020 2:19 pm 
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Joined: Mon May 21, 2018 8:09 pm
Posts: 1462
Hmm, interesting. Since cc65 is hosted on a modern computer, there shouldn't be any resource constraints preventing it from doing better at optimisation by itself. I assume the developers just haven't got around to implementing some of the more useful steps.

The points about tailoring the code to the 6502's characteristics are definitely valid, though.
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BigEd
PostPosted: Thu Apr 23, 2020 5:30 pm 
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Joined: Thu Dec 11, 2008 1:28 pm
Posts: 10975
Location: England
Welcome, ilmenit! Nice capturing of knowledge there - thanks for sharing.
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