initial import

tests/asicworld/code_hdl_models_lfsr.v

@@ -0,0 +1,35 @@
+//-----------------------------------------------------
+// Design Name : lfsr
+// File Name   : lfsr.v
+// Function    : Linear feedback shift register
+// Coder       : Deepak Kumar Tala
+//-----------------------------------------------------
+module lfsr    (
+out             ,  // Output of the counter
+enable          ,  // Enable  for counter
+clk             ,  // clock input
+reset              // reset input
+);
+
+//----------Output Ports--------------
+output [7:0] out;
+//------------Input Ports--------------
+input enable, clk, reset;
+//------------Internal Variables--------
+reg [7:0] out;
+wire        linear_feedback;
+
+//-------------Code Starts Here-------
+assign linear_feedback = !(out[7] ^ out[3]);
+
+always @(posedge clk)
+if (reset) begin // active high reset
+  out <= 8'b0 ;
+end else if (enable) begin
+  out <= {out[6],out[5],
+          out[4],out[3],
+          out[2],out[1],
+          out[0], linear_feedback};
+end 
+
+endmodule // End Of Module counter