def U32.divmod.go
import Base1608def U32.divmod.go(m: Nat, a: Word(m), +b: U32) -> Word(m) & U32:
1609 match m a:
1610 case 0n WNil{}:
1611 (WNil{}, 0)
1612 case 1n+p WCon{a0, hi}:
1613 U32.divmod.go.rec(p, a0, b, U32.divmod.go(p, hi, b))