The syntax for using these Adis functions is: 
    
 
    Syntax:
 
       
      call x"AF" using  function-code
                  parameter
 
    Parameters:
 
       
      
 
           
           
           
             
              | function-code 
                 | A pic x comp-x value field which contains the number of the function to be executed. 
                 | 
 
             
              | parameter 
                 | Varies according to the function. See the description of the individual function for information about the setting of 
                  parameter. 
                 | 
 
          
 
        
Note:  
         
          - All Adis calls must have a second parameter even though its contents are sometimes ignored. 
          
- If an error occurs while executing this call, 
            parameter returns a value of 255.