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Henrik RydgårdandClaude Opus 5.5
d6b3d590eb
They use the same quadratic interpolator as rcp and friends, with three twists. sin indexes the quarter wave from the top, and asin and sin work in a per-segment exponent whose 4-ulp truncation also applies to results in a lower binade. log2 truncates exponent + log2(1.m) toward zero to 22 significant bits, and where that step is coarser than 2^-24 the datapath drops coefficient bits to match; that also covers the region just below 1.0 that needed a special case. vfpu_sincos now reduces the angle once. With every table gone, so are the asset folder, the loader, InitVFPU and the fallbacks for tables that failed to load. All seven functions are bit-exact with the table-based code over every 32-bit input. Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>