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Optimus Tue Jun 25 2024 at 4:36 pm
Oh hai
I think I tried with ffix or without and brun45 is still faster.
And yes, I realized I shouldn't def seg outside or inside function and expect in another one or outside to persist.
I am looking at more quirks now thoroughly, looking at the assembly. Like I had a rotozoomer doing 89fps and dropped at 56 because of something innocent. I used to have my texture as DIM texture%(0 to 31, 0 to 31), then I decided to become more "clever" and start using CONST texWidth% = 32, then I did DIM texture%(0 to texWidth%-1, 0 to texHeight% - 1) and suddenly I look at the produced assembly, it reads the width from some offset near the array, then does IMUL, instead of the usual left arithmetic shifts. I did learn before that I should have used CONST for my old demos when I didn't want to use magic numbers but define them to be more clear (and also it would tell the compiler to not read the variable but use directly the number, as I see in the asm output) but here is an exception for an array size.
Anyway,. maybe I look too hard. Meanwhile every morning before work I somehow like to work on this, I had a lot of progress, have now gouraud, pseudo-env mapped phong, at a good speed for Pentium 1. I posted some previews in discord. Maybe I should make a demo with it at some point.
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