nexus: Fix BB sim model

Signed-off-by: gatecat <gatecat@ds0.me>

diff --git a/techlibs/nexus/cells_sim.v b/techlibs/nexus/cells_sim.v
index 1e876a210d61e2241ae63a62bff65627f9c81c55..d1c8bf0d7bf432421ab180e05cbd336a970cf23a 100644 (file)
--- a/techlibs/nexus/cells_sim.v
+++ b/techlibs/nexus/cells_sim.v
@@ -54,8 +54,8 @@ endmodule
 // Bidirectional IO buffer
 module BB(input T, I, output O,
        (* iopad_external_pin *) inout B);
-       assign B = T ? 1'bz : O;
-       assign I = B;
+       assign B = T ? 1'bz : I;
+       assign O = B;
 endmodule
 
 // Input buffer