F64.ri_k: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend as F64
Lines 705-711 of bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&start_line=705&end_line=711

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend as W
import bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend as X

# k < 64 fractional bits: q = w >> k, r = w - (q << k), h = 2^(k-1)
def ri_k(m: RMode, +s: Bool, +w: W.U64, +k: Nat, small: Bool) -> F64:
  match small:
    case True{}:
      ri_q(m, s, X.shr(w, k), X.sub(w, X.shl(X.shr(w, k), k)), X.shl(W.U64{1, 0}, Nat.sub(k, 1n)))
    case False{}:
      ri_q(m, s, W.U64{0, 0}, w, W.U64{0, 2147483648})

Uses (10):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=F64
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=RMode
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/f64.bend&name=ri_q
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/u64.bend&name=U64
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend&name=shl
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend&name=shr
  https://jend.leeeet.dev/definition.txt?path=bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend&name=sub