f# fix

tangTest/top.v

@@ -0,0 +1,20 @@
+module top (
+    input [3:0] A, B,
+    input [2:0] opCodeA,
+    input [1:0] select,
+    output [1:0] led,
+    output [11:0] Y
+);
+
+wire wire1, wire2;
+wire [11:0] selectY;
+ALU a1( .A(A),
+        .B(B),
+        .opCodeA(opCodeA),
+        .CarryIN(1'b0),
+        .bcd(selectY),
+        .CarryOUT(led[0]),
+        .overflow(led[1]));
+selector s1(.A(A), .B(B), .opCodeA(opCodeA), .select(select), .ALUY(selectY), .Y(Y));
+
+endmodule