def s32_split

bend-osdev-crc@0.1.0.0 · PROOF.bend:26

import Base
import bend-osdev-bytes@0.1.0.0/bytes.bend as B
import bend-osdev-crc@0.1.0.0/crc.bend as C

26def s32_split(xs: List<&2, U32>, +poly: U32, +topsh: Nat, +mask: U32, c: U32, ys: List<&2, U32>) -> {C.s32.raw(B.append(xs, ys), poly, topsh, mask, c) == C.s32.raw(ys, poly, topsh, mask, C.s32.raw(xs, poly, topsh, mask, c)) : U32}:
27  match xs:
28    case Nil{}:
29      {==}
30    case Con{h, t}:
31      s32_split(t, poly, topsh, mask, C.s32.bits(8n, poly, topsh, mask, U32.and(h, 255), c), ys)