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diff --git a/sequence_generator.v b/sequence_generator.v
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+// This module generates the "random" sequences for the simon game.
+// This module uses a perpetually running LFSR for seeding the sequence generator.
+// If randomize is high this module will use the current LFSR value as the seed.
+// Effectively this results in choosing a new random sequence.
+// If start_over is high this module moves to the start of the random sequence.
+// If next is high this module moves to the next element of the sequence.
+// seq outputs the current element of the sequence using a one-hot encoding.
+module sequence_generator (
+	input clk,
+	input randomize,
+	input next,
+	input start_over,
+	output [7:0] seq
+);
+	reg [17:0] counter = 18'b100110101011010111;
+	reg [17:0] seed;
+	reg [17:0] current;
+	
+	assign seq = 8'b1 << current[2:0];
+	
+	always @(posedge clk) begin
+		counter <= {counter[15:0], counter[17:16] ^ counter[10:9]};
+		if (randomize)
+			seed <= counter;
+		if (start_over)
+			current <= seed;
+		else if (next)
+			current <= {current[15:0], current[17:16] ^ current[10:9]};
+	end
+endmodule