CristalCaveGem » LustreC » Lustrec-Tests

-- Copyright (C) 2001 Bill Billowitch.

-- Some of the work to develop this test suite was done with Air Force

-- support.  The Air Force and Bill Billowitch assume no

-- responsibilities for this software.

-- 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: tc1704.vhd,v 1.2 2001-10-26 16:29:43 paw Exp $

-- $Revision: 1.2 $

--

-- ---------------------------------------------------------------------

ENTITY c09s02b00x00p07n01i01704ent IS

END c09s02b00x00p07n01i01704ent;

ARCHITECTURE c09s02b00x00p07n01i01704arch OF c09s02b00x00p07n01i01704ent IS

  signal   S :    Bit;

BEGIN

  TESTING: PROCESS( S )

    -- local variables.

    variable INITED : BOOLEAN := FALSE;

    variable CNT    : INTEGER := 0;

    variable NEWTIME: TIME;

    variable k      : integer := 1;

  BEGIN

    -- Take care of the first run.

    if  (not( INITED )) then

      INITED  := TRUE;

      CNT     := 0;

      S       <= (not S) after 1 ns;

      NEWTIME := NOW + 1 ns;

      -- Otherwise, take care of all subsequent runs.

      -- NOTE:  Take care of the last time we will get awakened.

    elsif (NOW /= TIME'HIGH) then

      -- Verify that we woke up when S was updated.

      if NOT(( S'EVENT ) and ( NEWTIME = NOW )) then

        k := 0;

      end if;

      -- See if we should continue.  If so, do it.

      CNT    := CNT + 1;

      if  (CNT <= 50) then

        S       <= (not S) after 1 ns;

        NEWTIME := NOW + 1 ns;

      end if;

    end if;

    if (CNT = 50) then

      assert NOT( k=1 )

        report "***PASSED TEST: c09s02b00x00p07n01i01704"

        severity NOTE;

      assert ( k=1 )

        report "***FAILED TEST: c09s02b00x00p07n01i01704 - The process statement is assumed to contain an implicit wait statement if a sensitivity list appears following the reserved word process."

        severity ERROR;

    end if;

  END PROCESS TESTING;

END c09s02b00x00p07n01i01704arch;