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
|
; asmsyntax=nasm
global setjmp
setjmp:
mov eax, [esp + 4]
mov [eax + 0 * 4], ebx
mov [eax + 1 * 4], esi
mov [eax + 2 * 4], edi
mov [eax + 3 * 4], ebp
lea ecx, [esp + 4]
mov [eax + 4 * 4], ecx
mov ecx, [esp]
mov [eax + 5 * 4], ecx
xor eax, eax
ret
global longjmp
longjmp:
mov edx, [esp + 4]
mov eax, [esp + 8]
mov ebx, [edx + 0 * 4]
mov esi, [edx + 1 * 4]
mov edi, [edx + 2 * 4]
mov ebp, [edx + 3 * 4]
mov ecx, [edx + 4 * 4]
mov esp, ecx
mov ecx, [edx + 5 * 4]
test eax, eax
jnz .nonzero
mov eax, 1
.nonzero:
jmp ecx
|
