Example of Setting an Unconditional Job Breakpoint
In this example you set an unconditional job breakpoint using
F6 (Add/Clear breakpoint). The breakpoint is to be set on the first runnable
Calculation specification so that the various fields and data structures can
be displayed.
- To work with a module type DSPMODSRC and press Enter. The Display Module Source display is shown.
- If you want to set the job breakpoint in the module shown, continue
with step 3. If you want to set a job breakpoint in a
different module, type:
on the debug command line where module-name is the name of the module that you want to display.DISPLAY MODULE module-name - To set an unconditional breakpoint on the first Calculation specification, place the cursor on line 88.
- Press F6 (Add/Clear breakpoint). If there is no breakpoint
on the line 88, then an unconditional breakpoint is set on that line, as shown
in Figure 1. If there is a breakpoint on the line, it is removed.
Note: Because we want the breakpoint on the first Calculation specification, we could have placed the cursor on any line before the start of the calculation specifications and the breakpoint would still have been placed on line 88, since it is the first runnable statement.Figure 1. Setting an Unconditional Job Breakpoint
Display Module Source Program: DEBUGEX Library: MYLIB Module: DBGEX 84 *--------------------------------------------------------------- 85 * Move 'a's to the data structure DS2. After the move, the 86 * first occurrence of DS2 contains 10 character 'a's. 87 *--------------------------------------------------------------- 88 C MOVE *ALL'a' DS2 89 90 *--------------------------------------------------------------- 91 * Change the occurrence of DS2 to 2 and move 'b's to DS2, 92 * making the first 10 bytes 'a's and the second 10 bytes 'b's 93 *--------------------------------------------------------------- 94 C 2 OCCUR DS2 95 C MOVE *ALL'b' DS2 96 97 *--------------------------------------------------------------- 98 * Fld1a is an overlay field of Fld1. Since Fld1 is initialized More... Debug . . . _________________________________________________________________ _______________________________________________________________________________ F3=End program F6=Add/Clear breakpoint F10=Step F11=Display variable F12=Resume F17=Watch variable F18=Work with watch F24=More keys Breakpoint added to line 88. - After the breakpoint is set, press F3 (Exit) to leave the Display Module Source display. The breakpoint is not removed.
- Call the program. When a breakpoint is reached, the program stops and the Display Module Source display is shown again, with the line containing the breakpoint highlighted. At this point you can step through the program or resume processing.