PL/I Debugging Programs › Inspect and Modify Main Storage › Modify the Value of a Variable with the MOVE Statement

Modify the Value of a Variable with the MOVE Statement

Overtyping the main storage display is the easiest way to change the value of a variable. However, you will want to use the CA InterTest for CICS generated MOVE statement to modify a variable when you do not know the type of data (binary, packed, and so on) or its length. The MOVE statement takes care of all the details for you.

1. To modify a variable where it is defined, type an m to the left of the statement defining it and press Enter. For example, to modify the value of TASKNUM, you would type in m instead of d.
2. If you type an m to the left of multiple lines, CA InterTest for CICS generates multiple MOVE statements.
3. To modify a variable where it is referenced, type an m to the left of the statement referencing it, place the cursor under any character in the variable, and press Enter.

   CA InterTest for CICS generates and displays a fill‑in‑the‑blanks MOVE statement, shown next.

   CA InterTest for CICS Release 9.1.00   - PROTSYM FILE  UNCOND  BEFORE BREAKPOINT         
   COMMAND ===>                                                                    
   Program= PLIDEMO  Option #       Stmt #                             Margin= 01  
                                           Search=                                 
   ------------------------------------------------------------------------------- 
    _____ DMAP00O.DFHMS9                  | ............                           
   ---------+--------------------------------------------------------------------- 
                                                                                   
   MOVE ________________________________________________________________           
                                                                                   
    to                                                                             
                                                                                   
        TASKNUM                                                                    
                                                                                   
   Overtype Underscores with a Data-Name, Figurative Constant,                     
   Alphanumeric Literal, or Numeric Literal                                    
   

4. Type one of the following values in the MOVE field:
   • A variable name, such as NEXT_TASKNUM
   • One of the following keywords: ZEROS, SPACES, LOW‑VALUES, HIGH‑VALUES, QUOTES
   • An alphanumeric literal enclosed in single quotes, such as 'YES'
   • A numeric literal, with or without a leading plus, +, or minus sign, ‑, such as ‑8.
5. Press Enter to execute the MOVE statement.

   CA InterTest for CICS displays a main storage display showing the new value of the variable. If you execute several MOVE statements, CA InterTest for CICS shows the main storage displays one-at-a-time. Press Clear to see the next one.

6. From the main storage display, press Clear or PF3 to return to the source listing.