29. One Shot Pulse

How do you plan to solve it?

module rise_pulse(
  input  wire clk,
  input  wire rst,      // synchronous active-high reset
  input  wire sig_in,
  output reg  pulse
);
  reg prev;             // previous sampled value of sig_in

  always @(posedge clk) begin
    // Write your code here
    // prev <= rst ? 1'b0 : sig_in;

    if(rst) begin
      pulse <= 1'b0;
      prev <= 1'b0;
    end else begin
      prev <= sig_in;

      if(prev==1'b0 && sig_in==1) begin
        pulse <= 1'b1;
      end else begin
        pulse <= 1'b0;
      end
    end

  end
endmodule