module demo_001(y1, y2, y3, y4);
	output [7:0] y1, y2, y3, y4;

	localparam [7:0] p1 = 123.45;
	localparam real p2 = 123.45;
	localparam real p3 = 123;
	localparam p4 = 123.45;

	assign y1 = p1 + 0.2;
	assign y2 = p2 + 0.2;
	assign y3 = p3 + 0.2;
	assign y4 = p4 + 0.2;
endmodule