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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 : Alexis Jeandet
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-- Mail : alexis.jeandet@lpp.polytechnique.fr
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----------------------------------------------------------------------------
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library IEEE;
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use IEEE.numeric_std.all;
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use IEEE.std_logic_1164.all;
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library lpp;
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use lpp.general_purpose.all;
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--IDLE =00 MAC =01 MULT =10 ADD =11
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entity MAC_CONTROLER is
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port(
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ctrl : in std_logic_vector(1 downto 0);
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MULT : out std_logic;
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ADD : out std_logic;
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LOAD_ADDER : out std_logic;
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MACMUX_sel : out std_logic;
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MACMUX2_sel : out std_logic
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);
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end MAC_CONTROLER;
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architecture ar_MAC_CONTROLER of MAC_CONTROLER is
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begin
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MULT <= '0' when (ctrl = "00" or ctrl = "11") else '1';
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ADD <= '0' when (ctrl = "00" or ctrl = "10") else '1';
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LOAD_ADDER <= '1' when (ctrl = "10") else '0'; -- PATCH JC : mem mult result
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-- to permit to compute a
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-- MULT follow by a MAC
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--MACMUX_sel <= '0' when (ctrl = "00" or ctrl = "01") else '1';
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MACMUX_sel <= '0' when (ctrl = "00" or ctrl = "01" OR ctrl = "10") else '1';
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MACMUX2_sel <= '0' when (ctrl = "00" or ctrl = "01" or ctrl = "11") else '1';
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end ar_MAC_CONTROLER;
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