Witch of Git - nan-gate/blob - example/shift_reg.sv

   1 module shift_reg #(
   2     parameter WIDTH=1,
   3     parameter DEPTH=4
   4 ) (
   5     input clock,
   6     input [WIDTH-1:0] in,
   7     output [WIDTH-1:0] out
   8 );
   9
  10 reg [WIDTH-1:0] state [DEPTH-1:0];
  11 assign out = state[DEPTH-1];
  12
  13 integer i;
  14 always @(posedge clock) begin
  15     state[0] <= in;
  16     for (i = 1; i < DEPTH; i=i+1) begin
  17         state[i] <= state[i-1];
  18     end
  19 end
  20
  21 endmodule