1 files changed, 15 insertions, 0 deletions
diff --git a/tests/arch/common/dffs.v b/tests/arch/common/dffs.v
new file mode 100644
index 000000000..3418787c9
--- /dev/null
+++ b/tests/arch/common/dffs.v
@@ -0,0 +1,15 @@
+module dff
+    ( input d, clk, output reg q );
+	always @( posedge clk )
+            q <= d;
+endmodule
+
+module dffe
+    ( input d, clk, en, output reg q );
+    initial begin
+      q = 0;
+    end
+	always @( posedge clk )
+		if ( en )
+			q <= d;
+endmodule