Specifies that words reserved in IBM COBOL V1.00 are to be regarded as reserved words, and changes the behavior of certain
                  features to be compatible with that COBOL system. 
                  	  
               
            
 
            	 
            
               Syntax:
 
               		 
               		>>-.---.-.----.--IBM-MS--------------------><
   +-/-+ +-NO-+
 
               	   
            	 
             
            	 
            
               Properties:
 
               		 
               		
                
                  		
                  
                      
                        			  
                        			  
                        			 
                         
                           				
                            
                              				  
                              | Default: | NOIBM-MS | 
 
                           				
                            
                              				  
                              | Phase: | Syntax check | 
 
                           				
                            
                              				  
                              | $SET: | Initial | 
 
                           			 
                         
                        		  
                     
                    
                  		
                 
               	 
              
            	 
            
               Dependencies:
 
               		 
               		
               IBM-MS sets DEFAULTBYTE"0" and ACCEPTREFRESH immediately. 
                  		
               
 
               	 
              
            	 
             
            
           
         
         
Comments:
This directive is synonymous with the PC1 and MS"1" directives.