1 files changed, 0 insertions, 13 deletions
diff --git a/techlibs/ecp5/cells_sim.v b/techlibs/ecp5/cells_sim.v
index 2458c1ca0..07fadfa10 100644
--- a/techlibs/ecp5/cells_sim.v
+++ b/techlibs/ecp5/cells_sim.v
@@ -281,19 +281,6 @@ endmodule
 
 // ---------------------------------------
 
-module OB(input I, output O);
-assign O = I;
-endmodule
-
-// ---------------------------------------
-
-module BB(input I, T, output O, inout B);
-assign B = T ? 1'bz : I;
-assign O = B;
-endmodule
-
-// ---------------------------------------
-
 module INV(input A, output Z);
 	assign Z = !A;
 endmodule