def rol1

bend-collections@1.0.0.0 · src/crypto/keccak/lane.bend:35

import Base
import bend-collections@1.0.0.0/src/crypto/keccak/types.bend as T

35def rol1(a: T.Lane) -> T.Lane:
36  match a:
37    case T.W{+lo,+hi}:
38      T.W{U32.or(U32.shln(lo,1n),U32.shrn(hi,31n)),U32.or(U32.shln(hi,1n),U32.shrn(lo,31n))}