def zip_step
import bend-collections@1.0.0.0/src/containers/bitset.bend as Bitsetimport Base
332def zip_step(p: Array<Wd> & Array<Wd>, +k: WordOp, +d: Nat, +q: Nat) -> Array<Wd> & Array<Wd>:
333 (a, b) = p
334 zip_write(read(a, d, q), read(b, d, q), k, d, q)