How to add an Assembler File to VC++ 6.0

2005-04-16 11:07:36 147 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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idAnts 2005-04-17

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你可以先用汇编的编译器将汇编编译完，然后将obj文件放入vc工程当中，然后将需要调用的函数在vc文件中申明，编译vc程序的时候连接器会自动在obj文件中找该函数，完成连接。
ok了就。注意申明函数的时候要注明调用规则。

Coder 青田 2005-04-17

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楼上的楼上的

masterz 2005-04-17

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How to use ASM in Class method?
#include "stdafx.h"
class ClassWithAsm
{
private:
int age;
char data[123];
char name[10];
public:
void SetName(char *name);
void SetData(char* pdata);
char* GetName()
{
return name;
}
char* GetData()
{
return data;
}
};
void ClassWithAsm::SetData(char* pdata)
{//thanks to Onega(www.fruitfruit.com)
int len = strlen(pdata);
_asm
{
mov edi,this ;
add edi, ClassWithAsm::data
mov esi,pdata
mov ecx ,len
rep movs byte ptr [edi], byte ptr [esi]
}
data[len]=0;
}
void ClassWithAsm::SetName(char *pname)
{// thanks to broadoceans(broadoceans)
int len = strlen(pname);
char *p = this->name;
_asm
{
mov esi,pname
mov edi,p
mov ecx ,len
rep movs byte ptr [edi], byte ptr [esi]
}
name[len]=0;
}

int _tmain(int argc, _TCHAR* argv[])
{
ClassWithAsm obj;
obj.SetName("testname");
obj.SetData("testdata");
printf("person:%s\n",obj.GetName());
printf(obj.GetData());
printf("\n");
return 0;
}

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»Ø¸´ÈË£º Focus(ÀÏÓã)
asm{
.....
call wrt
}
wrt: asm{or al,80h
call wr2

mov bh,bl
or bh,10000000b ;110xxxxxx:read;110A5------A0(01)
call wr1
and al,7fh ;di=0
out dx,al
mov dx,379h ;????????????????????????
mov cx,0003h
}
wr2:asm{
...
}

If you asm use stdcall like this:
.386
.MODEL flat, stdcall
.CODE
....

Then you should define __stdcall in your C/C++ header file
extern "C" int __stdcall myproc();//notice the __stdcall
add xxx.obj(generated from your asm file) to the VC project by menu Project->Add to project->Files...

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use ASM and CPP together:
1. create an ASM file
;;;;;;;;;;;;; asmsrc.asm:
.386
.model flat, stdcall
option casemap :none
.code

myasmproc proc dw1:DWORD,dw2:DWORD
mov eax,dw1
add eax,dw2
ret
myasmproc endp
end
;;;;;;;;;;;;end of asmsrc.asm

2. create a VC project name: useasm, type console application, A "Hello World" application

3. move the asm file to your project directory, then in VC project menu->Add to Project...->Files...
Files of type change to "all files", then you can select the asmsrc.asm, and click OK

4.in workspace window, FileView tab, select asmsrc.asm, right click to select "settings..." menu, custom build tab, put the following in commands edit box :
d:\masm32\bin\ml.exe /nologo /coff /Zf /c /Sa $(InputName).asm
put the following in Outputs edit box:
$(InputName).obj

5.edit your useasm.cpp as the following:
//////////////////////useasm.cpp///////////////////////////////
#include "stdafx.h"
#include <windows.h>
extern "C" int __stdcall myasmproc(DWORD d1,DWORD d2);
int main(int argc, char* argv[])
{
printf("test of using cpp and asm together, if it works, it is done by masterz,otherwise I don't know who write this^_^\n");
int ret=myasmproc(22,33);
printf("ASM result:%d\n",ret);
return 0;
}

//////////////////////end of useasm.cpp///////////////////////////////

6. build the project and run it, it works.

notes: I assume you have installed masm32V8(you can get it from http://www.movsd.com/masmdl.htm) at D:\masm32

How to add an Assembler File to VC++ 6.0

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