public static unsafe void ToUtf16(int source, byte* dest)
        {
            var intVector = Sse41.ConvertToVector128Int32(Vector128.CreateScalarUnsafe(source).AsByte());
            var hi = Sse2.ShiftRightLogical(intVector, 4);
            var lo = Ssse3.Shuffle(intVector.AsByte(),
                Vector128.Create(
                    0xFF, 0xFF, 0x00, 0xFF,
                    0xFF, 0xFF, 0x04, 0xFF,
                    0xFF, 0xFF, 0x08, 0xFF,
                    0xFF, 0xFF, 0x0C, 0xFF));
            var asciiMask = Sse2.And(Sse2.Or(hi.AsByte(), lo), Vector128.Create((byte) 0x0F));

            var dirtyAsciiBytes = Ssse3.Shuffle(
                Vector128.Create((byte) 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 97, 98, 99, 100, 101, 102),
                asciiMask);
            var utf16Bytes = Sse2.And(
                dirtyAsciiBytes,
                Vector128.Create(
                    0xFF, 0x00, 0xFF, 0x00,
                    0xFF, 0x00, 0xFF, 0x00,
                    0xFF, 0x00, 0xFF, 0x00,
                    0xFF, 0x00, 0xFF, 0x00));
            Sse2.Store(dest, utf16Bytes);
        }