--- /dev/null
+extern CFGSTRUCT DriverConfig[];
+extern ARGPSTRUCT DriverArgs[];
+extern char *DriverUsage;
+
+void DoDriverArgs(void);
+void GetBaseDirectory(char *BaseDirectory);
+
+int InitSound(void);
+void WriteSound(int16 *Buffer, int Count);
+
+void StartSound(void);
+void KillSound(void);
+void SilenceSound(int s);
+
+
+int InitVideo(void);
+void KillVideo(void);
+void BlitPrepare(int skip);
+void BlitScreen(int skip);
+void LockConsole(void);
+void UnlockConsole(void);
+void ToggleFS();