pub fn make_bigint<A: IVm>(sign: i32, words: &[u64]) -> Any<A>Expand description
L0 make_bigint: a sign, 0, 1 or -1, and a magnitude in u64
words, least significant first, in its canonical form only: no leading
zero word, and the sign 0 for zero alone
(l0-design.md §19).