b — Apollo

;
BREAKPOINT -- Sets a breakpoint.  Use the DELETE command to remove one or more
              breakpoints.  Use the LIST command to get a list of breakpoints.

  > BREAKPOINT -HERE       (Sets a breakpoint at the current line.)
  > BREAKPOINT 15          (Sets a breakpoint at line 15.)
  > BREAKPOINT aloe\37     (Sets a breakpoint in routine aloe at line 37.)
  > B vera\                (Sets a breakpoint on the first procedural line of
                            routine vera. B is an abbreviation for BREAKPOINT.)
  > BREAKPOINT -EXIT       (Sets a breakpoint at every line in which this
                            routine can return to its caller.)
  > BREAKPOINT 9 -AFTER 5  (Sets a breakpoint at line 17, but doesn't actually
                            trigger the break until the fifth time that the
                            statement is executed.)
  > B 19 -DO [PRINT 'x = ', x]   (Sets a breakpoint at line 19.  When program
                            hits the break, DEBUG will execute the action-list.)
Museum
