Automatic code analysis

Question

Parsing

I was faced with the task of disassembling and changing one old program code from the field of mathematical modeling. When I got to work, I realized that the program was written crookedly, and the jungle was thick, and the job was thankless. At the same time, it is clear that the task of parsing someone else's code is not just not new, but simply “super STAR”. In this regard, the suspicion creeps in that people have probably already made a bunch of improvised tools for this business for a long time. A kind of automatic analyzers, which, if they do not do all the work themselves, then at least help in this process. Well, they draw the structure, show which procedure uses which variables, which ones it changes. I am a newbie in this business, so unfortunately I don’t know anything about eco. Will the habrasoobshchestvo help me with good advice? Maybe there are such automatic code parsers? Well, or just in which direction to dig?

PS> The gag is that the program is written in the old Fortran66

Thanks in advance

Answer 1

About Fortran - I sympathize.
Try looking at something from this list:
www.ltn.net/T/Idioma/English/Computers/Programming/Languages/Fortran/Tools/Code_Analysis/

Answer 2

Yes, I'm not happy.
Thank you! I'll start looking at the list.