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diff --git a/examples/icemulti/app3.v b/examples/icemulti/app3.v
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+module top (
+ input clk,
+ output LED1, LED2, LED3, LED4, LED5
+);
+ localparam LOG2DELAY = 22;
+
+ reg [LOG2DELAY-1:0] counter = 0;
+ reg [3:0] counter2 = 0;
+ reg state = 0;
+
+ always @(posedge clk) begin
+ counter <= counter + 1;
+ counter2 <= counter2 + !counter;
+ state <= state ^ !counter;
+ end
+
+ assign LED1 = 0;
+ assign LED2 = 0;
+ assign LED3 = 0;
+ assign LED4 = state;
+ assign LED5 = 1;
+
+ SB_WARMBOOT WB (
+ .BOOT(&counter2),
+ .S1(1'b 0),
+ .S0(1'b 0)
+ );
+endmodule