def win

bend-kit-bits@0.1.0.1 · bits.bend:29

import Base

29# The 32 stream bits from bit p, in stream order: first bit lowest LSB-first, highest MSB-first.
30# Bits past the buffer's last word wrap to its first, so callers mask what lies past the end.
31def win(msb: Bool, a: Array<U32>, +p: U32) -> Array<U32> & U32:
32  match msb:
33    case True{}:
34      win.msb.at(p, Array.get(U32, a, (p >> 5n : U32)))
35    case False{}:
36      win.lsb.at(p, Array.get(U32, a, (p >> 5n : U32)))