Trial and error. You start with the assumption that the developers are working logically and that they will have chosen the simplest solution. A few of my ini

Trial and error. You start with the assumption that the developers are working logically and that they will have chosen the simplest solution. A few of my initial assumptions turned out to be wrong. For example, since I did see some word (16bit) values I assumed all the values would be words. That's probably what I would have done. But that turned out to be incorrect once I started looking at the values (it's a mix of bytes and words).