1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66

DEFAULT REL
section .data
a dd 0
b dd 0

section .text
    global _recur
    _recur:
    mov    eax, DWORD[esp + 4*1]
    mov    DWORD[a],eax
    mov    eax, DWORD[esp + 4*2]
    mov    DWORD[b],eax
    push    ebp
    mov    ebp, esp
    mov    eax, DWORD[a]
    push    eax
    mov    eax, 0
    pop    ecx
    cmp    ecx,eax
    jne    LAB27
    mov    eax, 1
    push    eax
    mov    eax, DWORD[b]
    add    eax, DWORD[esp]
    add    esp, 4
    mov    esp, ebp
    pop    ebp
    ret
    jmp    LAB23
    LAB27:
    LAB23:
    mov    eax, DWORD[a]
    push    eax
    mov    eax, DWORD[a]
    push    eax
    mov    eax, 1
    sub    eax, DWORD[esp]
    neg    eax
    add    esp, 4
    push    eax
    mov    eax, DWORD[b]
    pop    ecx
    push    eax
    push    ecx
    call    _recur
    add    eax, DWORD[esp]
    add    esp, 4
    mov    esp, ebp
    pop    ebp
    ret
    ret
    global _foo
    _foo:
    push    ebp
    mov    ebp, esp
    mov    eax, 2
    push    eax
    mov    eax, 2
    pop    ecx
    push    eax
    push    ecx
    call    _recur
    mov    esp, ebp
    pop    ebp
    ret
    ret