5 begAddMemDriver
"bl" "ext@$writesig and (sel0 or not sel0b)" "in0" 0 NULL
6 begAddMemDriver
"blb" "ext@$writesig and (sel0 or not sel0b)" "in0b" 0 NULL
8 begAddMemDriver
"bl" "ext@$writesig and (sel1 or not sel1b)" "in1" 0 NULL
9 begAddMemDriver
"blb" "ext@$writesig and (sel1 or not sel1b)" "in1b" 0 NULL