Stacks
to the Rescue
lTo deal with the clobbering
problem, we can save the return address and any arguments on a stack allocated at a standard place in
memory.
lThe stack is typically an array, with a pointer to the top element.
lThe stack is typically an array, with a pointer to the top element.
lim stack_pointer save_area_loc // initialize stack pointer
aim stack_pointer -1
// always point to top of stack