Des.des.e: def of bend-osdev-legacy-ciphers@0.1.0.0
Import: import bend-osdev-legacy-ciphers@0.1.0.0/des.bend as Des
Lines 231-234 of bend-osdev-legacy-ciphers@0.1.0.0/des.bend: https://jend.leeeet.dev/read.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/des.bend&start_line=231&end_line=234

import Base
import bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend as L

# group i of E(R): bits 4i .. 4i + 5 of R (bit 0 is bit 32), the top six bits
# of R rotated left by n = 4i - 1 (mod 32)
def des.e(+r: U32, +n: Nat) -> U32:
  U32.and(63, U32.shrn(L.lc.rotl(r, n), 26n))

Uses (5):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.and
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shrn
  https://jend.leeeet.dev/definition.txt?path=bend-osdev-legacy-ciphers@0.1.0.0/legacy_ciphers.bend&name=lc.rotl