def Nar.read.dig
import bend-kit-int@0.2.0.0/int.bend as Intimport Base
530def Nar.read.dig(ok: Bool, +r: U32, acc: U32, d: U32) -> Maybe<&2, U32>:
531 match ok:
532 case True{}:
533 Some{U32.add(U32.mul(acc, r), d)}
534 case False{}:
535 None{}