操作系统Win7 32位
1,int成员变量赋值
class CTest
{
public:
 CTest(void);
public: 
 int m_x ;
 int m_y;
};
m_x = 1;对应的汇编
 mov  DWORD PTR [eax], 1
m_y = 3;对应的汇编
 mov  DWORD PTR [eax+4], 3
2,short成员变量赋值
class CTest
{
public:
 CTest(void);
public: 
 short m_x ;
 short m_y;
};
m_x = 1;
 mov  WORD PTR [eax], 1
m_y = 3;
mov  WORD PTR [eax+2], 3
3,unsigned char赋值
class CTest
{
public:
 CTest(void);
public: 
 unsigned char m_x ;
 unsigned char m_y;
};
m_x = 1;
mov  BYTE PTR [eax], 1
m_y = 3;
mov  BYTE PTR [eax+1], 3
4,float 成员变量赋值
class CTest
{
public:
 CTest(void);
public: 
 float m_x ;
 float m_y;
};
m_x = 1;
fld1
fstp  DWORD PTR [eax]
m_y = 3
fld  DWORD PTR __real@40400000
fstp  DWORD PTR [eax+4]
5,double成员变量赋值
class CTest
{
public:
 CTest(void);
public: 
 double m_x ;
 double m_y;
};
m_x = 1
fld1
fstp  QWORD PTR [eax]
m_y = 3;
fld  QWORD PTR __real@4008000000000000
fstp  QWORD PTR [eax+8]
6,bool变量赋值
class CTest
{
public:
 CTest(void);
public: 
 bool m_x ;
 bool m_y;
};
m_x = 1
mov  BYTE PTR [eax], 1
m_y = 3
mov  BYTE PTR [eax+1], 1
posted on 2023-03-18 17:49  闻缺陷则喜何志丹  阅读(30)  评论(0)    收藏  举报  来源