public void InitUint64_SpanCopyTo()
 {
     Span<ulong> state = stackalloc ulong[8];
     InitState.CopyTo(MemoryMarshal.AsBytes(state));
 }
 public void InitUint32_SpanCopyTo()
 {
     Span<uint> state = stackalloc uint[8];
     InitState.CopyTo(MemoryMarshal.AsBytes(state));
 }