memory_dff: Recognize read ports with reset / initial value.

tests/memories/read_arst.v

@@ -0,0 +1,27 @@
+// expect-wr-ports 1
+// expect-rd-ports 1
+// expect-rd-clk \clk
+// expect-rd-en \re
+// expect-rd-arst-sig \reset
+// expect-rd-arst-val 8'01011010
+// expect-rd-init-val 8'00111100
+
+module top(input clk, input we, re, reset, input [7:0] addr, wdata, output reg [7:0] rdata);
+
+reg [7:0] bram[0:255];
+initial rdata = 8'h3c;
+
+always @(posedge clk) begin
+	if (we)
+		bram[addr] <= wdata;
+end
+
+always @(posedge clk, posedge reset) begin
+	if (reset)
+		rdata <= 8'h5a;
+	else if (re)
+		rdata <= bram[addr];
+end
+
+endmodule
+