FILLTIME          201 dev/isa/spkr.c 		    (whole * (FILLTIME - fill)) / (value * FILLTIME);
FILLTIME          202 dev/isa/spkr.c 		silence = whole * (FILLTIME-fill) * snum /
FILLTIME          203 dev/isa/spkr.c 		    (FILLTIME * value * sdenom);