SB16P_SW_CD_L    1747 dev/isa/sbdsp.c 		lmask = SB16P_SW_CD_L;
SB16P_SW_CD_L     127 dev/isa/sbreg.h #define 	SB16P_SW_CD	(SB16P_SW_CD_L|SB16P_SW_CD_R)