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PL/I Advanced Demo Session › Demo Preliminaries › Set an Unconditional Breakpoint for a Label

Set an Unconditional Breakpoint for a Label

Now you will set a second unconditional breakpoint at the LOOPRTN label from the Labels Cross‑Reference section. When you set the breakpoint from the Labels Cross‑Reference section, it is set at the label name and not at the statement number. This is a good method to use if you want to use the breakpoint after recompiling—the breakpoint is transferred to the new program by label‑name, and not by statement‑number (which might change between compiles).

  1. Type l .lx in the command line or type 14 in the Option # field, and press Enter.

    The Labels Cross‑Reference section of PLIDEMO appears.

    CA InterTest for CICS Release 9.1.00   - PROTSYM FILE  SOURCE LISTING DISPLAY            
COMMAND ===>                                                                    
Program= PLIDEMO  Option #       Stmt #                             Margin= 01  
                                        Search=                                 
------------------------------------------------------------------------------- 
 _                   LABEL ATTRIBUTE/XREF TABLE                                 
        LINE.FILE IDENTIFIER                      ATTRIBUTES                    
 _      1646.1    CALLCOMP                        CONSTANT LABEL                
                                                  Refs: 1643.1                  
 _       857.1    CONTINUE                        CONSTANT LABEL                
                                                  Refs: 846.1                   
 _       635.1    CONTINUE_TASK                   CONSTANT LABEL                
                                                  Refs: 596.1                   
 _      1193.1    DSIDERR                         CONSTANT LABEL                
                                                  Refs: 558.1 1269.1            
 _       704.1    END_SESSION                     CONSTANT LABEL                
                                                  Refs: 542.1 576.1 640.1 643+  
                                                        666.1 859.1 868.1 882+  
                                                        944.1 969.1 994.1 101+  
                                                        1044.1 1068.1 1091.1    
                                                        1114.1 1137.1 1160.1    
                                                        1191.1 1391.1 1487.1    
                                                        1644.1                  
 _       744.1    EXPANDEM                        CONSTANT LABEL
  2. Press PF8 to page forward.
  3. Type u to the left of the LOOPRTN label, and press Enter. 
    CA InterTest for CICS Release 9.1.00   - PROTSYM FILE  SOURCE LISTING DISPLAY            
COMMAND ===>                                                                    
Program= PLIDEMO  Option # 9     Stmt #                             Margin= 01  
                                        Search= LOOPRTN                         
--------------+---------------------------------------------------------------- 
 _                     ATTRIBUTE/XREF TABLE-                                    
        LINE.FILE IDENTIFIER                      ATTRIBUTES                    
                                                  Refs: 709.1 1213.1 1235.1 1+  
         515.1    LENGTH                          BUILTIN                       
 u      1435.1    LOOPRTN                         CONSTANT LABEL                
                                                  Refs: 970.1 995.1             
 _       773.1    MAPNUM                          AUTOMATIC CHARACTER(2) UNAL+  
                                                  Refs: 906.1                   
                                                  Sets: 635.1 860.1 922.1 947+  
                                                        972.1 997.1 1022.1 16+  
 _      1536.1    MORE_ENTRY                      CONSTANT LABEL                
                                                  Refs: 903.1    
.
..

    CA InterTest for CICS sets the breakpoint at the LOOPRTN label and redisplays the screen with an uppercase U.