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------------------------------------------------------------------------------
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-- This file is a part of the LPP VHDL IP LIBRARY
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-- Copyright (C) 2009 - 2010, Laboratory of Plasmas Physic - CNRS
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program; if not, write to the Free Software
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-- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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-------------------------------------------------------------------------------
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-- Author : Jean-christophe Pellion
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-- Mail : jean-christophe.pellion@lpp.polytechnique.fr
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-- jean-christophe.pellion@easii-ic.com
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-------------------------------------------------------------------------------
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LIBRARY ieee;
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USE ieee.std_logic_1164.ALL;
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USE ieee.numeric_std.ALL;
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PACKAGE data_type_pkg IS
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TYPE array_integer IS ARRAY (NATURAL RANGE <>) OF INTEGER;
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TYPE array_real IS ARRAY (NATURAL RANGE <>) OF REAL;
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TYPE array_std_logic_vector_16b IS ARRAY (NATURAL RANGE <>) OF STD_LOGIC_VECTOR(15 DOWNTO 0);
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TYPE sample_vector IS ARRAY(NATURAL RANGE <>, NATURAL RANGE <>) OF STD_LOGIC;
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FUNCTION to_array_std_logic_vector_16b (
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array_in : array_real)
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RETURN array_std_logic_vector_16b;
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END data_type_pkg;
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PACKAGE BODY data_type_pkg IS
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FUNCTION to_array_std_logic_vector_16b (
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array_in : array_real)
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RETURN array_std_logic_vector_16b IS
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VARIABLE array_out : array_std_logic_vector_16b(array_in'RANGE);
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BEGIN
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all_value: FOR I IN array_in'RANGE LOOP
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array_out(I) := STD_LOGIC_VECTOR(to_signed(INTEGER(array_in(I) * 2.0**15),16));
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END LOOP all_value;
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RETURN array_out;
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END to_array_std_logic_vector_16b;
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END data_type_pkg;
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