@Override
	public String getDataRepresentation(ByteBlock block, BigInteger index)
			throws ByteBlockAccessException {
		long l0 = block.getLong(index);
		String str0 = pad(Long.toHexString(l0));
		long l1 = block.getLong(index.add(BigInteger.valueOf(8)));
		String str1 = pad(Long.toHexString(l1));
		String str = str1.substring(16) + str0.substring(16);
		return pad(str);
	}
Converts byte values to LongLong represented as an 16-byte/32-digit hex number.
Ghidra/Features/ByteViewer/src/main/java/ghidra/app/plugin/core/format/HexLongLongFormatModel.java