Subversion Repositories lxp32

---------------------------------------------------------------------

-- Common package for LXP32 testbenches

--

-- Part of the LXP32 verification environment

--

-- Copyright (c) 2016 by Alex I. Kuznetsov

---------------------------------------------------------------------

library ieee;

use ieee.std_logic_1164.all;

use ieee.numeric_std.all;

package common_pkg is

        type rng_state_type is record

                seed1: positive;

                seed2: positive;

        end record;

        -- Generate a pseudo-random value of integer type from [a;b] range

        -- Output is stored in x

        procedure rand(variable st: inout rng_state_type; a,b: integer; variable x: out integer);

        -- Convert std_logic_vector to a hexadecimal string (similar to

        -- the "to_hstring" function from VHDL-2008

        function hex_string(x: std_logic_vector) return string;

end package;