[zygotic12]

You're reading an encyclopedia. Isolate the bits you are interested in. But in the end it's grunt work. If you aren't prepared to see EVERY line of code executing you will never know what it intends\does. JavaScript you can get away with black box knowledge. C by definition is a thin wrapper over machine implementations. If you went to uni make notes. If you've been programming for 40 years you'll derive your own system of boxes, lines and scribbles that fits on the back of a cigarette packet.