Library /sys$common/syshlp/dbg$help.hlb DEBUG, SET, BREAK, Qualifiers, /OVER  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Applies only to breakpoints set with the following qualifiers
    (that is, when an address expression is not explicitly
    specified):

       /BRANCH
       /CALL
       /INSTRUCTION
       /INSTRUCTION=(opcode[, . . . ]) (VAX only)
       /LINE
       /VECTOR_INSTRUCTION (VAX only)

    When used with those qualifiers, /OVER causes the debugger to
    break at the specified points only within the routine in which
    execution is currently suspended (not within called routines).
    The /OVER qualifier is the opposite of /INTO (which is the
    default).