Makes the Compiler display its internal reference number at the start of a compilation as well as at the bottom of every listing.
                  
                  
               
            
 
            
            
               Syntax:
 
                
               >>-.---.-.----.--REFNO---------------------><
   +-/-+ +-NO-+
 
                 
            
             
            
            
               Properties:
 
                
               
                
                  
                  
                      
                         
                         
                        
                         
                           
                            
                              
                              | Default: 
                                 
                               |  
                              
                              NOREFNO 
                                 
                               |  
                              
                           
 
                           
                            
                              
                              | Phase: 
                                 
                               |  
                              
                              Syntax check 
                                 
                               |  
                              
                           
 
                           
                            
                              
                              | $SET: 
                                 
                               |  
                              
                              No 
                                 
                               |