HW23
COP-3402

1. Draw the stack frames for the following two functions (after running main and calling f, but before f returns). Remember to include:

   • The return address.
   • The old base pointer.
   • The local variables.

   function main
   localVariables retval x
   x := 3
   retval := call f a
   return x
   end function
   

   function f
   localVariables x
   parameters x
   x := 2
   return x
   end function
   

2. Write mov instruction(s) that implement x := 2 above in the function f.
3. In the x86 64 System V ABI, how are parameters passed?