General Format
  
 
   
	  
	  
	  
	  The following format of the USAGE clause is supported: 
  
 
   
	 

 
  
 
  Syntax Rules
  
 
   
	 - COMP and COMPUTATIONAL are synonymous. 
	 
 
 
	 - COMP-0 and COMPUTATIONAL-0 are synonymous. 
	 
 
 
  
 
  General Rules
  
 
   
	 - USAGE IS COMPUTATIONAL means the same as USAGE IS DISPLAY, if you set the MS Compiler directive when you submit your source code to your COBOL system. 
	 
 
 
	 - USAGE IS COMP-0 is allowed only with numeric items. If an item is described with a PICTURE no larger than S9(4), the effect is a data item whose description is PIC S9(4) USAGE COMP; that is, a 2-byte signed binary item. Otherwise, the effect is a data item with the PICTURE clause actually specified and with USAGE DISPLAY.