-extern void _exit(int retval);
-extern void SysDebug(const char *fmt, ...); //!< Now implemented in main.c
-extern void SysDebugV(const char *fmt, ...);
-extern void *SysLoadBin(const char *path, void **entry);
-extern int SysUnloadBin(void *Base);
-extern void SysSetFaultHandler(int (*Hanlder)(int));
-extern int open(const char *filename, int flags, ...);
-extern int close(int fd);