SA3_SYS_CTL_YMODE  345 dev/isa/ym.c   		sc->sc_eqmode = cp->un.ord & SA3_SYS_CTL_YMODE;
SA3_SYS_CTL_YMODE  347 dev/isa/ym.c   		    ~SA3_SYS_CTL_YMODE) | sc->sc_eqmode);