如何为函数指定可丢弃的内存属性

如何为函数指定可丢弃的内存属性
WinMain proc hInst:HINSTANCE,hPrevInst:HINSTANCE,CmdLine:LPSTR,CmdShow:DWORD

    invoke RegisterClassEx, addr wc                     
    invoke CreateWindowEx,
   
    invoke ShowWindow, hwnd,CmdShow           
    invoke UpdateWindow, hwnd                                 

end WinMain

masm6.0有没有如下类似的编译指令
#define INITCODE code_seg("INIT")
#pragma INITCODE
extern "C" NTSTATUS DriverEntry ( PDRIVER_OBJECT pDriver,   PUNICODE_STRING pRegPath  )
{

}