MC_REGB           418 arch/i386/isa/clock.c 	mc146818_write(NULL, MC_REGB, MC_REGB_24HR | MC_REGB_PIE);
MC_REGB           185 dev/ic/mc146818reg.h 		mc146818_write(sc, MC_REGB,				\
MC_REGB           186 dev/ic/mc146818reg.h 		    mc146818_read(sc, MC_REGB) | MC_REGB_SET);		\
MC_REGB           193 dev/ic/mc146818reg.h 		mc146818_write(sc, MC_REGB,				\
MC_REGB           194 dev/ic/mc146818reg.h 		    mc146818_read(sc, MC_REGB) & ~MC_REGB_SET);		\