def r32_split

bend-osdev-crc@0.1.0.0 · PROOF.bend:12

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

12def r32_split(xs: List<&2, U32>, +poly: U32, c: U32, ys: List<&2, U32>) -> {C.r32.raw(B.append(xs, ys), poly, c) == C.r32.raw(ys, poly, C.r32.raw(xs, poly, c)) : U32}:
13  match xs:
14    case Nil{}:
15      {==}
16    case Con{h, t}:
17      r32_split(t, poly, C.r32.bits(8n, poly, U32.xor(c, U32.and(h, 255))), ys)