21 lines
692 B
Markdown
21 lines
692 B
Markdown
things to try:
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* skip add on the top-byte multiply in sqr8/mul8
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* should save a few cycles, suggestion by jamey
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* perform the zx += zx^s + cx in 32-bit space, before rounding
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* should improve precision on max zoom, might cost a few cycles
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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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* 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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* maybe redo tiering to just 4x4, 2x2, 1x1?
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* extract viewport for display & re-input via keyboard
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* fujinet screenshot/viewport uploader
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