Several MPE/iX commands are available that allow you to set, alter, or display JCWs. These are:
| :SETJCW  | 
|  | 
This command adds a JCW to the variable table, or alters the value of an existing variable.  The value must fall within the valid range for a JCW, that is, in the range 0 through 65535.
Command syntax is as follows:
| 
   :SETJCW jcwname delimiter [+ or -] value 
 | 
The jcwname parameter can contain the name of a new or existing user-defined or system-defined JCW.  You can use @ to specify all currently defined JCWs.
The delimiter can be one or more punctuation characters 
or spaces, except for % or -.  The value parameter must be one of the following:
- An octal number between 0 and %177777. 
- A decimal number between 0 and 65,535. 
- An MPE/iX-defined JCW value mnemonic, or an offset value of a mnemonic. 
- The name of an existing JCW.