+#ifndef __GNUC__
+#include <conio.h>
+#else
+int _outp(unsigned short port, int databyte);
+unsigned short _outpw(unsigned short port, unsigned short dataword);
+unsigned long _outpd(unsigned short port, unsigned long dataword);
+int _inp(unsigned short port);
+unsigned short _inpw(unsigned short port);
+unsigned long _inpd(unsigned short port);
+#endif
+