call x"A7" using function-code
                 parameter 
               	 | Using call prototype (see Key) | Picture | |
|---|---|---|
| function-code | cblt-x1-compx | pic x comp-x. | 
| parameter | cblt-x1-compx | pic x comp-x. | 
| 0 | Turns the user attribute on | 
| 1 | Turns the user attribute off | 
None