It would appear that each symbol table is built for a seperate file, and symbols don't have scope in any other file unless they're explicitly exported and imported. In that way, their assembler has an architecture quite similar to the common C compiler (or, to take an example from my personal hardon, AS's sections). Too bad we don't have the comments anymore. Those are a good indicator to how many people were editing a particular file. Don't take that as a complaint, though; we're plenty lucky enough to have the labels.