Brooke Vibber
0fc5ba914f
was missing an rts on update_palette this happened to fall through to keycheck which if timing was wrong would dutifully process the viewport change and return to update_palette's caller which in turn was -not- expecting to reset the outer loop fixed
24 lines
846 B
Markdown
24 lines
846 B
Markdown
things to try:
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* add some preset viewports that can be switched via number keys (1, 2, 3 etc)
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* patch the entire expanded-ram imul8xe on top of imul8 to avoid the 3-cycle thunk penalty :D
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* square-root special case of multiplication for zx*zx and zy*zy
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* the hi1*hi2 and lo1*lo2 8-bit muls can be optimized into a 512-byte lookup table
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* jamey on mastodon tried this but had some problems. see what happens on our version!
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* double-check rounding behavior is correct
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* try 3.13 fixed point instead of 4.12 for more precision
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* can we get away without the extra bit?
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* y-axis mirror optimization
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* 'wide pixels' 2x and 4x for a fuller initial image in the tiered rendering
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* rework the palette cycling to look more like an advancing flow
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* extact viewport for display & re-input via keyboard
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* fujinet screenshot/viewport uploader
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