def u32_mul_over

bend-collections-laws-crypto@1.0.0.0 · src/math/instances.bend:21

import Base
import bend-collections-laws-crypto@1.0.0.0/src/math/w64.bend as X

21# a * b >= 2^32: the full product has a nonzero high word
22def u32_mul_over(+a: U32, +b: U32) -> Bool:
23  Bool.not(U32.is_zero(X.hi(X.mul32(a, b))))