Today's class examples are posted at
  http://www.cs.dartmouth.edu/~sergey/cs59/x86/optimizations-m32-scoping.txt

Homework exercises on the x86 execution model will be posted tomorrow.

Please refer to the previously posted GDB examples in http://www.cs.dartmouth.edu/~sergey/cs59/x86/hello-world-disasm.txt,
and https://www.recurse.com/blog/7-understanding-c-by-learning-assembly for a general GDB tutorial.
   I'll post the suggested and required x86 exercises tomorrow.