module LShapedWire_bi4 (A, B, fault, status); //forward =1 information goes A-> B //status 00=relax,01=switch, 10=hold, 11=release // if fault =1 the output is inverted input [1:0] status; input fault; inout A,B; reg loadedA,loadedB; wor A,B,C; assign C = A; assign C = B; assign B = (status == 2'b10) ? loadedB : (status == 2'b01) ? (fault ? ~C : C) : 1'bz; assign A = (status == 2'b10) ? loadedA : (status == 2'b01) ? (fault ? ~C : C) : 1'bz; initial begin loadedA <=1'bz; loadedB <=1'bz; end always@(posedge status[1]) begin loadedA <= (A===1'bx)? 1'bz: A; loadedB <= (B===1'bx)? 1'bz: B; end always@(posedge status[0]) begin loadedA <= 1'bz; loadedB <= 1'bz; end endmodule