// 7-segment display driver implemented as a case statement
module ROM_case(addr, data);

	input  logic [3:0] addr;
	output logic [6:0] data;
	
	always_comb
		case (addr)
			//             L6543210
			4'h0: data = 7'b1000000;
			4'h1: data = 7'b1111001;
			4'h2: data = 7'b0100100;
			4'h3: data = 7'b0110000;
			4'h4: data = 7'b0011001;
			4'h5: data = 7'b0010010;
			4'h6: data = 7'b0000010;
			4'h7: data = 7'b1111000;
			4'h8: data = 7'b0000000;
			4'h9: data = 7'b0010000;
			4'hA: data = 7'b0001000;
			4'hB: data = 7'b0000011;
			4'hC: data = 7'b1000110;
			4'hD: data = 7'b0100001;
			4'hE: data = 7'b0000110;
			4'hF: data = 7'b0001110;
		endcase

endmodule  // ROM_case