Get Value From ASM (Assembly 64-bit) C++ -


i having problems assembly & c++, playing around , learning how use assembly in c++ couldn't seem able function in asm return value wanted to. c++ code:

#include <iostream>  using namespace std;  extern "c" int getvaluefromasm();  int main() {     cout << getvaluefromasm();     cin.ignore();     return 0; }

and asm code in file:

.code getvaluefromasm proc     move eax, 489     ret getvaluefromasm endp  end

the errors recieve are

error2 error lnk1120: 1 unresolved externals     error1 error lnk2019: unresolved external symbol getvaluefromasm referenced in function main

i using visual studio 2013 & , masm assembly & selected x64 in configuration manager, info there.

i thankful new asm.


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