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-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
-- This file is part of VESTs (Vhdl tESTs).
-- VESTs is free software; you can redistribute it and/or modify it
-- under the terms of the GNU General Public License as published by the
-- Free Software Foundation; either version 2 of the License, or (at
-- your option) any later version.
-- VESTs is distributed in the hope that it will be useful, but WITHOUT
-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-- FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
-- for more details.
-- You should have received a copy of the GNU General Public License
-- along with VESTs; if not, write to the Free Software Foundation,
-- Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-- ---------------------------------------------------------------------
--
-- $Id: ch_09_fg_09_01.vhd,v 1.2 2001-10-26 16:29:34 paw Exp $
-- $Revision: 1.2 $
--
-- ---------------------------------------------------------------------
-- not in book
package alu_types is
constant data_width : positive := 32;
end package alu_types;
package io_types is
constant data_width : positive := 32;
end package io_types;
entity controller_system is
end entity controller_system;
-- end not in book
library ieee; use ieee.std_logic_1164.all;
use work.alu_types.all, work.io_types.all;
architecture structural of controller_system is
alias alu_data_width is work.alu_types.data_width;
alias io_data_width is work.io_types.data_width;
signal alu_in1, alu_in2,
alu_result : std_logic_vector(0 to alu_data_width - 1);
signal io_data : std_logic_vector(0 to io_data_width - 1);
-- . . .
-- not in book
-- following should not analyze: data_width not directly visible
-- constant test : positive := data_width;
-- end not in book
begin
-- . . .
end architecture structural;
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