When execution is suspended within a called routine, you can execute
  your program directly to the end of that routine by clicking on the
  Step-Return push button on the push-button view of the main window.

  The debugger suspends execution just before the routine's return
  instruction executes.  At that point, the routine's call frame has not
  been deleted from the call stack, so you can still get the values of
  variables local to that routine, and so on.

  The Step-Return push button is particularly useful if you have
  inadvertently stepped into a system or library routine.