SBP_STEREO       1352 dev/isa/sbdsp.c 		sbdsp_mix_write(sc, SBP_STEREO,
SBP_STEREO       1353 dev/isa/sbdsp.c 		    (sbdsp_mix_read(sc, SBP_STEREO) & ~SBP_PLAYMODE_MASK) |