chapter4.1

// chapter4.cpp : 定义控制台应用程序的入口点。
//

#include "stdafx.h"


int _tmain(int argc, _TCHAR* argv[])
{
 const size_t size = 16;
 int carr[size];

 for(int idx = 0; idx != size; ++idx)
 {
  carr[idx] = idx;
 }

 return 0;
}

 

debug

od

 

00412FE0    55              push    ebp
00412FE1    8BEC            mov     ebp, esp
00412FE3    81EC 20010000   sub     esp, 120
00412FE9    53              push    ebx
00412FEA    56              push    esi
00412FEB    57              push    edi
00412FEC    8DBD E0FEFFFF   lea     edi, dword ptr [ebp-120]
00412FF2    B9 48000000     mov     ecx, 48
00412FF7    B8 CCCCCCCC     mov     eax, CCCCCCCC
00412FFC    F3:AB           rep     stos dword ptr es:[edi]
00412FFE    C745 F8 1000000>mov     dword ptr [ebp-8], 10
00413005    C745 A4 0000000>mov     dword ptr [ebp-5C], 0
0041300C    EB 09           jmp     short 00413017
0041300E    8B45 A4         mov     eax, dword ptr [ebp-5C]
00413011    83C0 01         add     eax, 1
00413014    8945 A4         mov     dword ptr [ebp-5C], eax
00413017    837D A4 10      cmp     dword ptr [ebp-5C], 10
0041301B    74 0C           je      short 00413029
0041301D    8B45 A4         mov     eax, dword ptr [ebp-5C]
00413020    8B4D A4         mov     ecx, dword ptr [ebp-5C]
00413023    894C85 B0       mov     dword ptr [ebp+eax*4-50], ecx
00413027  ^ EB E5           jmp     short 0041300E
00413029    33C0            xor     eax, eax
0041302B    52              push    edx
0041302C    8BCD            mov     ecx, ebp
0041302E    50              push    eax
0041302F    8D15 44304100   lea     edx, dword ptr [413044]
00413035    E8 52E0FFFF     call    0041108C
0041303A    58              pop     eax
0041303B    5A              pop     edx
0041303C    5F              pop     edi
0041303D    5E              pop     esi
0041303E    5B              pop     ebx
0041303F    8BE5            mov     esp, ebp
00413041    5D              pop     ebp                              ; 0012FFB8
00413042    C3              retn

 

 

ida

.text:00412FE0
.text:00412FE0     ; =============== S U B R O U T I N E =======================================
.text:00412FE0
.text:00412FE0     ; Attributes: bp-based frame
.text:00412FE0
.text:00412FE0     _wmain          proc near               ; CODE XREF: j__wmainj
.text:00412FE0
.text:00412FE0     var_120         = byte ptr -120h
.text:00412FE0     idx             = dword ptr -5Ch
.text:00412FE0     var_50          = dword ptr -50h
.text:00412FE0     size            = dword ptr -8
.text:00412FE0
.text:00412FE0 000                 push    ebp
.text:00412FE1 004                 mov     ebp, esp
.text:00412FE3 004                 sub     esp, 120h
.text:00412FE9 124                 push    ebx
.text:00412FEA 128                 push    esi
.text:00412FEB 12C                 push    edi
.text:00412FEC 130                 lea     edi, [ebp+var_120]
.text:00412FF2 130                 mov     ecx, 48h
.text:00412FF7 130                 mov     eax, 0CCCCCCCCh
.text:00412FFC 130                 rep stosd
.text:00412FFE 130                 mov     [ebp+size], 10h
.text:00413005 130                 mov     [ebp+idx], 0
.text:0041300C 130                 jmp     short loc_413017
.text:0041300E     ; ---------------------------------------------------------------------------
.text:0041300E
.text:0041300E     loc_41300E:                             ; CODE XREF: _wmain+47j
.text:0041300E 130                 mov     eax, [ebp+idx]
.text:00413011 130                 add     eax, 1
.text:00413014 130                 mov     [ebp+idx], eax
.text:00413017
.text:00413017     loc_413017:                             ; CODE XREF: _wmain+2Cj
.text:00413017 130                 cmp     [ebp+idx], 10h
.text:0041301B 130                 jz      short loc_413029
.text:0041301D 130                 mov     eax, [ebp+idx]
.text:00413020 130                 mov     ecx, [ebp+idx]
.text:00413023 130                 mov     [ebp+eax*4+var_50], ecx
.text:00413027 130                 jmp     short loc_41300E
.text:00413029     ; ---------------------------------------------------------------------------
.text:00413029
.text:00413029     loc_413029:                             ; CODE XREF: _wmain+3Bj
.text:00413029 130                 xor     eax, eax
.text:0041302B 130                 push    edx
.text:0041302C 134                 mov     ecx, ebp
.text:0041302E 134                 push    eax
.text:0041302F 138                 lea     edx, dword_413044
.text:00413035 138                 call    j_@_RTC_CheckStackVars@8 ; _RTC_CheckStackVars(x,x)
.text:0041303A 130                 pop     eax
.text:0041303B 12C                 pop     edx
.text:0041303C 128                 pop     edi
.text:0041303D 124                 pop     esi
.text:0041303E 120                 pop     ebx
.text:0041303F 11C                 mov     esp, ebp
.text:00413041 004                 pop     ebp
.text:00413042 000                 retn
.text:00413042     _wmain          endp
.text:00413042
.text:00413042     ; --------------------------------------------------

release

od

 

00401000  /$  83EC 40       sub     esp, 40
00401003  |.  33C0          xor     eax, eax
00401005  |>  40            /inc     eax
00401006  |.  83F8 10       |cmp     eax, 10
00401009  |.^ 75 FA         \jnz     short 00401005
0040100B  |.  33C0          xor     eax, eax
0040100D  |.  83C4 40       add     esp, 40
00401010  \.  C3            retn

 

 

ida

.text:00401000                 assume es:nothing, ss:nothing, ds:_data, fs:nothing, gs:nothing
.text:00401000
.text:00401000 ; =============== S U B R O U T I N E =======================================
.text:00401000
.text:00401000
.text:00401000 ; int __cdecl main(int argc, const char **argv, const char *envp)
.text:00401000 _main           proc near               ; CODE XREF: ___tmainCRTStartup+10Ap
.text:00401000
.text:00401000 argc            = dword ptr  4
.text:00401000 argv            = dword ptr  8
.text:00401000 envp            = dword ptr  0Ch
.text:00401000
.text:00401000                 sub     esp, 40h
.text:00401003                 xor     eax, eax
.text:00401005
.text:00401005 loc_401005:                             ; CODE XREF: _main+9j
.text:00401005                 inc     eax
.text:00401006                 cmp     eax, 10h
.text:00401009                 jnz     short loc_401005
.text:0040100B                 xor     eax, eax
.text:0040100D                 add     esp, 40h
.text:00401010                 retn
.text:00401010 _main           endp
.text:00401010
.text:00401011
.text:00401011 ; =============== S U B R O U T I N E =======================================

posted @ 2010-06-21 14:58  南守拥  阅读(217)  评论(0编辑  收藏  举报