Terminates the processing of files and reels/units with optional rewind and locking where appropriate. For record sequential
               files, the terms "reel" and "unit" are interchangeable; the treatment of sequential disk files is logically equivalent to
               the treatment of a file on tape or similar sequential media. 
               	 
               
                   
                     		   
                     		   
                     		   
                     		  
                      
                        			 
                         
                           				
                           | Opcode
                              				
                            |  
                           				
                           Operation
                              				
                            |  
                           				
                           File Type
                              				
                            |  
                           			 
                        
 
                        		  
                      
                     		  
                      
                        			 
                         
                           				
                           | 80
                              				
                            |  
                           				
                           CLOSE
                              				
                            |  
                           				
                           L S R I
                              				
                            |  
                           			 
                        
 
                        			 
                         
                           				
                           | 81
                              				
                            |  
                           				
                           CLOSE WITH LOCK
                              				
                            |  
                           				
                           L S R I
                              				
                            |  
                           			 
                        
 
                        			 
                         
                           				
                           | 82
                              				
                            |  
                           				
                           CLOSE WITH NO REWIND
                              				
                            |  
                           				
                           L S
                              				
                            |  
                           			 
                        
 
                        			 
                         
                           				
                           | 84
                              				
                            |  
                           				
                           CLOSE REEL/UNIT
                              				
                            |  
                           				
                           L S
                              				
                            |  
                           			 
                        
 
                        			 
                         
                           				
                           | 85
                              				
                            |  
                           				
                           CLOSE REEL/UNIT FOR REMOVAL
                              				
                            |  
                           				
                           L S
                              				
                            |  
                           			 
                        
 
                        			 
                         
                           				
                           | 86
                              				
                            |  
                           				
                           CLOSE REEL/UNIT WITH NO REWIND
                              				
                            |  
                           				
                           L S 
                              				
                            |  
                           			 
                        
 
                        		  
                      
                     		
                  
                 
               	 
              
            	 
            Input Fields
               	 
            
 
            	 
            None
               	 
            
 
            	 
            Output Fields
               	 
            
 
            	 
             
               	 
               
                   
                     		   
                     		   
                     		  
                      
                        			 
                         
                           				
                           | fcd-file status
                              				
                            |  
                           				
                           File status
                              				
                            |