VC8 常用代码汇编 返回值，入参，全局变量

int CTest::fun()
{
 return 3;
}
mov eax, 3

double CTest::fun()
{
 return 3.0;
}
fld  QWORD PTR __real@4008000000000000

class CTest
{
public: 
 void CTest::fun(short& x);
 int m_x ;
};
void CTest::fun(short& x)
{
 x = 3;
 m_x = 4;
}
; _this$ = ecx
; _x$ = eax
x = 3;
mov  WORD PTR [eax], 3
m_x = 4;
mov  DWORD PTR [ecx], 4

int g_x = 0 ;
void CTest::fun()
{
 g_x =3 ;
}
g_x =3 ;
mov  DWORD PTR ?g_x@@3HA, 3 ; g_x

sx++;
add  DWORD PTR ?sx@?1??fun@CTest@@QAEXXZ@4HA, 1