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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_05_ch_05_14.vhd,v 1.2 2001-10-26 16:29:34 paw Exp $
-- $Revision: 1.2 $
--
-- ---------------------------------------------------------------------
entity ch_05_14 is
end entity ch_05_14;
----------------------------------------------------------------
architecture test of ch_05_14 is
signal PC, functional_next_PC, equivalent_next_PC : integer := 0;
begin
block_05_3_p : block is
port ( next_PC : out integer );
port map ( next_PC => functional_next_PC );
begin
-- code from book:
PC_incr : next_PC <= PC + 4 after 5 ns;
-- end of code from book
end block block_05_3_p;
----------------
block_05_3_q : block is
port ( next_PC : out integer );
port map ( next_PC => equivalent_next_PC );
begin
-- code from book:
PC_incr : process is
begin
next_PC <= PC + 4 after 5 ns;
wait on PC;
end process PC_incr;
-- end of code from book
end block block_05_3_q;
----------------
stimulus : process is
begin
for i in 1 to 10 loop
PC <= i after 20 ns;
wait for 20 ns;
end loop;
wait;
end process stimulus;
verifier :
assert functional_next_PC = equivalent_next_PC
report "Functional and equivalent models give different results";
end architecture test;
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