cell_t sdSeekFile( FileStream * Stream, off_t Position, int32_t Mode );
cell_t sdRenameFile( const char *OldName, const char *NewName );
cell_t sdDeleteFile( const char *FileName );
cell_t sdSeekFile( FileStream * Stream, off_t Position, int32_t Mode );
cell_t sdRenameFile( const char *OldName, const char *NewName );
cell_t sdDeleteFile( const char *FileName );
off_t sdTellFile( FileStream * Stream );
cell_t sdCloseFile( FileStream * Stream );
cell_t sdInputChar( FileStream *stream );
off_t sdTellFile( FileStream * Stream );
cell_t sdCloseFile( FileStream * Stream );
cell_t sdInputChar( FileStream *stream );