@Override
	public byte readByte(long index) throws IOException {
		try {
			return fileBytes.getOriginalByte(index);
		}
		catch (IndexOutOfBoundsException e) {
			throw new IOException(e);
		}
	}
Construct byte provider from original file bytes
@param fileBytes original file bytes
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/FileBytesProvider.java