Question

What will the stack contain before INVOKE ExitProcess get executed?

1: main PROC

2: push 10

3: push 20

4: call Ex2Sub

5: pop eax

6: INVOKE ExitProcess,0

7: main ENDP

8:

9: Ex2Sub PROC

10: pop eax

11: ret

12: Ex2Sub ENDP

Answer 1

1: main PROC

2: push 10 // 1. in satck 10

3: push 20 // 2. in satck 20 10

4: call Ex2Sub // 3. call Ex2Sub so compiler jump to the function

5: pop eax // 7. poped 10 so stack is empty

6: INVOKE ExitProcess,0

7: main ENDP

8:

9: Ex2Sub PROC // 4. exicute Ex2Sub

10: pop eax // 5. in satck 10 because 20 poped prom stack

11: ret // 6. return to calling function

12: Ex2Sub ENDP

// stack is empty before INVOKE ExitProcess get executed . i give the sequence of exicution