易语言和VC++的对比
晚上无聊，易语言 和 Visual C++ 6.0 (以下内容简称C++) 编写了 相同的代码但是编译后 用OD 查看其汇编代码 表示很无奈
C++ 的汇编代码结构清晰 代码量少
而易语言代码浑浊 上跳下跳 占用不少字节(相对C++)
下面 我贴上 两个程序的汇编代码
C++：
00401005/$ /E9 06000000 jmp Hello.WinMain
0040100A||CC int3
0040100B||CC int3
0040100C||CC int3
0040100D||CC int3
0040100E||CC int3
0040100F||CC int3
00401010 >|> \55 push ebp
00401011|.8BEC mov ebp,esp
00401013|.83EC 40 sub esp,0x40
00401016|.53 push ebx
00401017|.56 push esi
00401018|.57 push edi
00401019|.8D7D C0 lea edi,
0040101C|.B9 10000000 mov ecx,0x10
00401021|.B8 CCCCCCCC mov eax,0xCCCCCCCC
00401026|.F3:AB rep stos dword ptr es:
00401028|.8BF4 mov esi,esp
0040102A|.6A 00 push 0x0 ; /Style = MB_OK|MB_APPLMODAL
0040102C|.68 2C204200 push Hello.0042202C ; |Title = "C++"
00401031|.68 1C204200 push Hello.0042201C ; |Text = "Hello Word"
00401036|.6A 00 push 0x0 ; |hOwner = NULL
00401038|.FF15 ACA24200 call dword ptr ds:[<&USER32.MessageBoxA>>; \MessageBoxA
0040103E|.3BF4 cmp esi,esp
00401040|.E8 3B000000 call Hello._chkesp
00401045|.33C0 xor eax,eax
00401047|.5F pop edi
00401048|.5E pop esi
00401049|.5B pop ebx
0040104A|.83C4 40 add esp,0x40
0040104D|.3BEC cmp ebp,esp
0040104F|.E8 2C000000 call Hello._chkesp
00401054|.8BE5 mov esp,ebp
00401056|.5D pop ebp
00401057\.C2 1000 retn 0x10
占用字节 82 byte
E
00401150 .83EC 64 sub esp,0x64
00401153 .56 push esi
00401154 .8B7424 74 mov esi,dword ptr ss:
00401158 .57 push edi
00401159 .8B7E 08 mov edi,dword ptr ds:
0040115C .57 push edi
0040115D .E8 AE830000 call E_langua.00409510
00401162 .83C4 04 add esp,0x4
00401165 .85C0 test eax,eax
00401167 .74 10 je short E_langua.00401179
00401169 .8D4424 08 lea eax,dword ptr ss:
0040116D .50 push eax
0040116E .56 push esi
0040116F .E8 2CFFFFFF call E_langua.004010A0
00401174 .83C4 08 add esp,0x8
00401177 .EB 42 jmp short E_langua.004011BB
00401179 >81FF 04000080 cmp edi,0x80000004 ;分支 (案例 80000002..80000004)
0040117F .75 04 jnz short E_langua.00401185
00401181 .8B0E mov ecx,dword ptr ds: ;案例 80000004 (SINGLE STEP) --> 分支 00401179
00401183 .EB 3A jmp short E_langua.004011BF
00401185 >81FF 02000080 cmp edi,0x80000002
0040118B .75 12 jnz short E_langua.0040119F
0040118D .8B16 mov edx,dword ptr ds: ;案例 80000002 (DATATYPE MISALIGNMENT) --> 分支 00401179
0040118F .8D4C24 08 lea ecx,dword ptr ss:
00401193 .51 push ecx
00401194 .52 push edx
00401195 .E8 C6470100 call E_langua.00415960
0040119A .83C4 08 add esp,0x8
0040119D .EB 1C jmp short E_langua.004011BB
0040119F >81FF 03000080 cmp edi,0x80000003
004011A5 .75 1C jnz short E_langua.004011C3
004011A7 .8B4E 04 mov ecx,dword ptr ds: ;案例 80000003 (BREAKPOINT) --> 分支 00401179
004011AA .8B16 mov edx,dword ptr ds:
004011AC .8D4424 08 lea eax,dword ptr ss:
004011B0 .50 push eax
004011B1 .51 push ecx
004011B2 .52 push edx
004011B3 .E8 D8400100 call E_langua.00415290
004011B8 .83C4 0C add esp,0xC
004011BB >8D4C24 08 lea ecx,dword ptr ss:
004011BF >85C9 test ecx,ecx
004011C1 .75 09 jnz short E_langua.004011CC
004011C3 >C64424 08 00mov byte ptr ss:,0x0 ;分支 00401179 默认案例
004011C8 .8D4C24 08 lea ecx,dword ptr ss:
004011CC >8B46 20 mov eax,dword ptr ds:
004011CF .BA 9C414700 mov edx,E_langua.0047419C
004011D4 .85C0 test eax,eax
004011D6 .74 03 je short E_langua.004011DB
004011D8 .8B56 18 mov edx,dword ptr ds:
004011DB >8B46 0C mov eax,dword ptr ds:
004011DE .8BF0 mov esi,eax
004011E0 .F7D6 not esi
004011E2 .81E6 00100000 and esi,0x1000
004011E8 .8D0470 lea eax,dword ptr ds:
004011EB .50 push eax ; /Style
004011EC .52 push edx ; |Title
004011ED .51 push ecx ; |Text
004011EE .6A 00 push 0x0 ; |hOwner = NULL
004011F0 .FF15 A0334600 call dword ptr ds:[<&USER32.MessageBoxA>>; \MessageBoxA
004011F6 .5F pop edi
004011F7 .83F8 03 cmp eax,0x3 ;分支 (案例 2..7)
004011FA .5E pop esi
004011FB .75 0F jnz short E_langua.0040120C
004011FD .8B4C24 68 mov ecx,dword ptr ss: ;案例 3 --> 分支 004011F7
00401201 .B8 02000000 mov eax,0x2
00401206 .8901 mov dword ptr ds:,eax
00401208 .83C4 64 add esp,0x64
0040120B .C3 retn
0040120C >83F8 02 cmp eax,0x2
0040120F .75 0F jnz short E_langua.00401220
00401211 .8B5424 68 mov edx,dword ptr ss: ;案例 2 --> 分支 004011F7
00401215 .B8 01000000 mov eax,0x1
0040121A .8902 mov dword ptr ds:,eax
0040121C .83C4 64 add esp,0x64
0040121F .C3 retn
00401220 >83F8 05 cmp eax,0x5
00401223 .75 0F jnz short E_langua.00401234
00401225 .8B4C24 68 mov ecx,dword ptr ss: ;案例 5 --> 分支 004011F7
00401229 .B8 04000000 mov eax,0x4
0040122E .8901 mov dword ptr ds:,eax
00401230 .83C4 64 add esp,0x64
00401233 .C3 retn
00401234 >83F8 07 cmp eax,0x7
00401237 .75 0F jnz short E_langua.00401248
00401239 .8B5424 68 mov edx,dword ptr ss: ;案例 7 --> 分支 004011F7
0040123D .B8 06000000 mov eax,0x6
00401242 .8902 mov dword ptr ds:,eax
00401244 .83C4 64 add esp,0x64
00401247 .C3 retn
00401248 >83F8 06 cmp eax,0x6
0040124B .75 0F jnz short E_langua.0040125C
0040124D .8B4C24 68 mov ecx,dword ptr ss: ;案例 6 --> 分支 004011F7
00401251 .B8 05000000 mov eax,0x5
00401256 .8901 mov dword ptr ds:,eax
00401258 .83C4 64 add esp,0x64
0040125B .C3 retn
0040125C >33D2 xor edx,edx ;分支 004011F7 默认案例
0040125E .8B4C24 68 mov ecx,dword ptr ss:
00401262 .83F8 04 cmp eax,0x4
00401265 .0F95C2 setne dl
00401268 .4A dec edx
00401269 .83E2 03 and edx,0x3
0040126C .8BC2 mov eax,edx
0040126E .8901 mov dword ptr ds:,eax
00401270 .83C4 64 add esp,0x64
00401273 .C3 retn
占用字节 291 byte
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