Use instruction stepping

After a breakpoint is encountered, you can run a specified number of statements of a program object, then stop the program again.

After stopping the program, you return to the Display Module Source display. The program object begins running on the next statement of the module object in which the program stopped. Typically, a breakpoint is used to stop the program object.

The simplest way to step through a program object one statement at a time is to use F10 (Step) or F22 (Step into) on the Display Module Source display. Step over is the default mode of F10 (Step). When you press F10 (Step) or F22 (Step into), then next statement of the module object shown in the Display Module Source display is run, and the program object is stopped again.

Another way to step through a program object is to use the STEP debug command. The STEP debug command allows you to run more than one statement in a single step.

• Use F10 (Step) or F22 (Step into)
  When you step over the called program object, then the CALL statement and the called program object are run as a single step. When you step into the called program object, then each statement in the called program object is run as a single step.
• Use the STEP debug command
  The default number of statements to run, using the STEP debug command, is one. However you can change the step number.