A breakpoint is a place in a program at which the system stops
program processing and gives control to you at a display station (interactive
mode) or to a program specified on the BKPPGM parameter in the Add
Breakpoint (ADDBKP) command (batch mode).
Adding breakpoints to programs
To add breakpoints to the program you want to
debug, use the Add Breakpoint (ADDBKP) command.
Adding conditional breakpoints
To add a conditional breakpoint
to a program that is being debugged, use the Add Breakpoint (ADDBKP) command
to specify the statement and condition.