__outpw函数在VC 64位平台编译提示找不到标识符

Question

__outpw函数在VC 64位平台编译提示找不到标识符，查看声明的头文件发现被条件编译x86想知道这个函数64位平台有什么替代的函数吗
#ifdef _M_IX86
int __cdecl _inp(unsigned short);
unsigned short __cdecl _inpw(unsigned short);
unsigned long __cdecl _inpd(unsigned short);
#endif /* _M_IX86 */
_CRTIMP int __cdecl _kbhit(void);
#ifdef _M_IX86
int __cdecl _outp(unsigned short, int);
unsigned short __cdecl _outpw(unsigned short, unsigned short);

unsigned long __cdecl _o