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
pulse<=rst?1'b0:((~prev) & sig_in);
prev<=rst?1'b0:sig_in;
end
endmodule