.code

DllEntryPoint proc
	mov rax, 1
	ret
DllEntryPoint endp

AddFun proc
	mov eax, ecx
	add eax, edx
	ret
AddFun endp
end

LIBRARY "ASM64DLLTest"  
EXPORTS  
AddFun

__declspec(dllexport) int Add(int a, int b)
{
	return (a + b);
}

#include <iostream>

#include <windows.h> 

using namespace std;

typedef int(*MYPROC)(int, int);

int main()
{
	HINSTANCE hinstLib;
	MYPROC ProcAdd;
	BOOL fFreeResult = FALSE;

	// Get a handle to the DLL module.
	hinstLib = LoadLibrary(TEXT("ASM64DLLTest.dll"));

	// If the handle is valid, try to get the function address.
	if (hinstLib != NULL)
	{
		ProcAdd = (MYPROC)GetProcAddress(hinstLib, "AddFun");

		// If the function address is valid, call the function.
		if (NULL != ProcAdd)
		{
			cout << (ProcAdd)(1, 2) << endl;

			cout << "LoadLibrary Success and Function Run" << endl;
		}
		else
		{
			cout << "LoadLibrary Success and GetProcAddress Fail" << endl;
		}

		// Free the DLL module.
		fFreeResult = FreeLibrary(hinstLib);

		if (fFreeResult == 1)
		{
			cout << "FreeLibrary Success" << endl;
		}
		else
		{
			cout << "FreeLibrary Fail" << endl;
		}
		
	}
	else
	{
		cout << "LoadLibrary Fail" << endl;
	}

	return 0;
}