1 files changed, 29 insertions, 0 deletions
diff --git a/ice40/regressions/issue0188/test.v b/ice40/regressions/issue0188/test.v
new file mode 100644
index 0000000..199c07f
--- /dev/null
+++ b/ice40/regressions/issue0188/test.v
@@ -0,0 +1,29 @@
+`include "pll.v"
+
+module top (
+	input pclk,              // 100MHz clock
+	output led1,
+	output led2,
+	input  button,
+	output led3
+);
+	
+	reg button_read;
+	reg [20:0] cntr;
+	wire lock;
+	wire fclock;
+	
+	pll mypll(pclk,fclock,lock);
+	
+	always@(posedge fclock) begin
+		if (~lock) cntr <= 21'h00000000;
+		else cntr<= cntr+1;
+		button_read <= button;
+	end
+	
+	assign led1 = button_read;
+	assign led2 = cntr[19];
+	assign led3 = cntr[20];
+	
+	endmodule
+