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diff --git a/testsuite/gna/issue301/packages/pkg_helper.vhd b/testsuite/gna/issue301/packages/pkg_helper.vhd
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+--!
+--! Copyright (C) 2011 - 2014 Creonic GmbH
+--!
+--! This file is part of the Creonic Viterbi Decoder, which is distributed
+--! under the terms of the GNU General Public License version 2.
+--!
+--! @file
+--! @brief  Helper package with useful functions
+--! @author Markus Fehrenz
+--! @date   2011/12/02
+--!
+
+library ieee;
+use ieee.std_logic_1164.all;
+use ieee.numeric_std.all;
+
+
+package pkg_helper is
+
+	--!
+	--! Return the log_2 of an natural value, i.e. the number of bits required
+	--! to represent this unsigned value.
+	--!
+	function no_bits_natural(value_in : natural) return natural;
+
+	--! Return maximum of two input values
+	function max(value_in_a, value_in_b : natural) return natural;
+
+end pkg_helper;
+
+
+package body pkg_helper is
+
+	function no_bits_natural(value_in: natural) return natural is
+		variable v_n_bit : unsigned(31 downto 0);
+	begin
+		if value_in = 0 then
+			return 0;
+		end if;
+		v_n_bit := to_unsigned(value_in, 32);
+		for i in 31 downto 0 loop
+			if v_n_bit(i) = '1' then
+				return i + 1;
+			end if;
+		end loop;
+		return 1;
+	end no_bits_natural;
+
+	function max(value_in_a, value_in_b : natural) return natural is
+	begin
+		if value_in_a > value_in_b then
+			return value_in_a;
+		else
+			return value_in_b;
+		end if;
+	end function;
+
+end pkg_helper;