SCPE_UNATT       5998 src/simh/scp.c         return SCPE_UNATT;
SCPE_UNATT       6765 src/simh/scp.c             return SCPE_UNATT;
SCPE_UNATT       6856 src/simh/scp.c             return SCPE_UNATT;
SCPE_UNATT        240 src/simh/sim_tape.c     return SCPE_UNATT;