* @return the 64-bit integer value
     */
    public static long readInt8(final byte[] src, final int srcIndex) {
        return (readInt4(src, srcIndex) & 0xFFFFFFFFL) + ((long) readInt4(src, srcIndex + 4) << 32);
    }

    /**
     * Writes a 64-bit integer value to a byte array in little-endian format
     * @param val the value to write
     * @param dst the destination byte array

          k1 ^= (long) toUnsignedInt(bb.get(6)) << 48; // fall through
        case 6:
          k1 ^= (long) toUnsignedInt(bb.get(5)) << 40; // fall through
        case 5:
          k1 ^= (long) toUnsignedInt(bb.get(4)) << 32; // fall through
        case 4:
          k1 ^= (long) toUnsignedInt(bb.get(3)) << 24; // fall through
        case 3:
          k1 ^= (long) toUnsignedInt(bb.get(2)) << 16; // fall through
        case 2: