LegacyCiphers.lc.fe.unstep: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as LegacyCiphers
Lines 340-343 of bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&start_line=340&end_line=343

import Base

def lc.fe.unstep(~RK: Data, ~f: RK -> U32 -> U32, k: RK, b: LcBlock64) -> LcBlock64:
  match b:
    case LcBlock64{+l, r}:
      LcBlock64{U32.xor(r, f(k, l)), l}

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.xor
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=LcBlock64