-- num cell port function safe [ccell disval rslt]
   "17 (BC_1, CLK, input, X)," &
   "16 (BC_1, OC_NEG, input, X), " &-- Merged input/
   "16 (BC_1, *, control, 1), " &-- control
   "15 (BC_1, D(1), input, X)," &
   "14 (BC_1, D(2), input, X)," &
   "13 (BC_1, D(3), input, X)," &
   "12 (BC_1, D(4), input, X)," &
   "11 (BC_1, D(5), input, X)," &
   "10 (BC_1, D(6), input, X)," &
   " 9 (BC_1, D(7), input, X)," &
   " 8 (BC_1, D(8), input, X)," &  -- cell 16 @ 1 -> Hi-Z
   " 7 (BC_1, Q(1), output3, X, 16, 1, Z)," &
   " 6 (BC_1, Q(2), output3, X, 16, 1, Z)," &
   " 5 (BC_1, Q(3), output3, X, 16, 1, Z)," &
   " 4 (BC_1, Q(4), output3, X, 16, 1, Z)," &
   " 3 (BC_1, Q(5), output3, X, 16, 1, Z)," &
   " 2 (BC_1, Q(6), output3, X, 16, 1, Z)," &
   " 1 (BC_1, Q(7), output3, X, 16, 1, Z)," &
   " 0 (BC_1, Q(8), output3, X, 16, 1, Z)";