GDB
Compile your file using "gcc -g". Work through the file you created using GDB. While you are going through it, step through using nexti. Then try to step through it using next. Set breakpoints and examine values and addresses as you see fit.
Recompile your file without using "-g" and work through it again.
This is a journey of exploration, don't spend too much time, don't rush, just work through until you feel comfortable with what is going on with the values.
- Describe what occurs in a technical manner, using addresses and values.