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Brooke Vibber 2024-12-28 20:44:27 -08:00
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things to try:
* fix the pan/zoom bug where it doesn't reset loop right :(
* add some preset viewports that can be switched via number keys (1, 2, 3 etc)
* patch the entire expanded-ram imul8xe on top of imul8 to avoid the 3-cycle thunk penalty :D
* square-root special case of multiplication for zx*zx and zy*zy
* the hi1*hi2 and lo1*lo2 8-bit muls can be optimized into a 512-byte lookup table
* jamey on mastodon tried this but had some problems. see what happens on our version!
* double-check rounding behavior is correct
* try 3.13 fixed point instead of 4.12 for more precision
* can we get away without the extra bit?
* y-axis mirror optimization
* 'wide pixels' 2x and 4x for a fuller initial image in the tiered rendering
* rework the palette cycling to look more like an advancing flow
* extact viewport for display & re-input via keyboard
* fujinet screenshot/viewport uploader