pub fn sha1nexte(a: [u32; 4], b: [u32; 4]) -> [u32; 4]Expand description
sha1nexte(a, b) — fold the next E (the previous block-round’s A, rotated) into the high dword of
the next message group. dest[127:96] = b[127:96] + (a[127:96] ROL 30); the low 96 bits pass b.