var code = /** 
#include <windows.h>
__declspec(dllexport)  void copyAlpha(char *p,char *s,int len){
	for( int i = 0;i< len;i+=4,p+=4,s+=4){ 
		*(p+3) = *(s+3);  
	}
}
**/
 
import tcc; 
vm = tcc(); 
vm.outputEx( "/feather.dll", code  )
vm.close();