blob: 0eaa7f2905e9b804f8fc8aa1ec5b84cca6c7f26e [file] [log] [blame]
module top
#(parameter N=8)
(
input wire clk, reset,
input wire s_in,
output wire s_out
);
reg [N-1:0] r_reg;
wire [N-1:0] r_next;
always @(posedge clk, negedge reset)
begin
if (~reset)
r_reg <= 0;
else
r_reg <= r_next;
end
assign r_next = {s_in, r_reg[N-1:1]};
`ifndef BUG
assign s_out = r_reg[0];
`else
assign s_out = 1'bZ;
`endif
endmodule