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1 d93979b7 Arnaud Dieumegard
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-- Copyright (C) 1996 Morgan Kaufmann Publishers, Inc
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-- This file is part of VESTs (Vhdl tESTs).
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-- VESTs is free software; you can redistribute it and/or modify it
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-- under the terms of the GNU General Public License as published by the
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-- Free Software Foundation; either version 2 of the License, or (at
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-- your option) any later version. 
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-- VESTs is distributed in the hope that it will be useful, but WITHOUT
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-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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-- FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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-- for more details. 
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-- You should have received a copy of the GNU General Public License
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-- along with VESTs; if not, write to the Free Software Foundation,
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-- Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
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-- ---------------------------------------------------------------------
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--
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-- $Id: ch_11_ch_11_02.vhd,v 1.1.1.1 2001-08-22 18:20:48 paw Exp $
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-- $Revision: 1.1.1.1 $
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--
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-- ---------------------------------------------------------------------
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package ch_11_02 is
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  -- code from book
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  type std_ulogic is ('U', 'X', '0', '1', 'Z', 'W', 'L', 'H', '-');
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  type std_ulogic_vector is array ( natural range <> ) of std_ulogic;
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  function resolved ( s : std_ulogic_vector ) return std_ulogic;
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  subtype std_logic is resolved std_ulogic;
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  type std_logic_vector is array ( natural range <>) of std_logic;
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  subtype X01 is resolved std_ulogic range 'X' to '1'; -- ('X','0','1')
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  subtype X01Z is resolved std_ulogic range 'X' to 'Z'; -- ('X','0','1','Z')
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  subtype UX01 is resolved std_ulogic range 'U' to '1'; -- ('U','X','0','1')
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  subtype UX01Z is resolved std_ulogic range 'U' to 'Z'; -- ('U','X','0','1','Z')
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  -- end code from book
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end package ch_11_02;
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package body ch_11_02 is
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  function resolved ( s : std_ulogic_vector ) return std_ulogic is
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  begin
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  end function resolved;
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end package body ch_11_02;