1 files changed, 35 insertions, 0 deletions
diff --git a/techlibs/xilinx/tests/bram2.v b/techlibs/xilinx/tests/bram2.v
new file mode 100644
index 000000000..0a6013ca6
--- /dev/null
+++ b/techlibs/xilinx/tests/bram2.v
@@ -0,0 +1,35 @@
+module myram(
+	input		  rd_clk,
+	input	   [ 7:0] rd_addr,
+	output reg [17:0] rd_data,
+	input		  wr_clk,
+	input		  wr_enable,
+	input	   [ 7:0] wr_addr,
+	input	   [17:0] wr_data
+);
+	reg [17:0] memory [0:255];
+	integer i;
+
+	function [17:0] hash(input [7:0] k);
+		reg [31:0] x;
+		begin
+			x = {k, ~k, k, ~k};
+			x = x ^ (x << 13);
+			x = x ^ (x >> 17);
+			x = x ^ (x << 5);
+			hash = x;
+		end
+	endfunction
+
+	initial begin
+		for (i = 0; i < 256; i = i+1)
+			memory[i] = hash(i);
+	end
+
+	always @(posedge rd_clk)
+		rd_data <= memory[rd_addr];
+
+	always @(posedge wr_clk)
+		if (wr_enable)
+			memory[wr_addr] <= wr_data;
+endmodule