Library /sys$common/syshlp/dbg$help.hlb DEBUG, Built in Symbols, %NEXTLOC  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Specifies the logical successor of the current entity (that is,
    the program location that logically follows the location last
    referenced by an EXAMINE, DEPOSIT, or EVALUATE/ADDRESS command).
    The EXAMINE command without a parameter is equivalent to EXAMINE
    %NEXTLOC.

    Example:

    DBG> EXAMINE PRIMES(4)
    SIEVE\PRIMES(4): 7
    DBG> EXAMINE %NEXTLOC
    SIEVE\PRIMES(5): 11
    DBG> EXAMINE    ! Equivalent to EXAMINE %NEXTLOC
    SIEVE\PRIMES(6): 13