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: tc1911.vhd,v 1.2 2001-10-26 16:29:43 paw Exp $

-- $Revision: 1.2 $

--

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

ENTITY c07s02b00x00p09n02i01911ent IS

END c07s02b00x00p09n02i01911ent;

ARCHITECTURE c07s02b00x00p09n02i01911arch OF c07s02b00x00p09n02i01911ent IS

BEGIN

  TESTING: PROCESS

    variable ValueI1, SameValueI1, DifferentValueI1 : INTEGER;

    variable ValueI2, SameValueI2, DifferentValueI2 : INTEGER;

    variable ValueI3, SameValueI3, DifferentValueI3 : INTEGER;

    variable ValueI4, SameValueI4, DifferentValueI4 : INTEGER;

  BEGIN

    -- adding operators.  

    --   Cannot compare the "&" operator against either the "+" or 

    --   "-" operators.  The only two we can compare are the "+"

    --         and the "-" operators.

    -- "+", "-"

    ValueI1         := 14 + 1 - 9 - 7;

    SameValueI1     := ((14 + 1) - 9) - 7;

    DifferentValueI1:= 14 + (1 - (9 - 7));

    assert (ValueI1 = SameValueI1)

      report "Values of same precedence are not evaluated left to right.";

    assert (ValueI1 /= DifferentValueI1)

      report "Values of same precedence are not evaluated left to right.";

    -- multiplying operators.

    -- "*", "/"

    ValueI2          := 14 / 7 * 3;

    SameValueI2      := (14 / 7) * 3;   -- 6

    DifferentValueI2 := 14 / (7 * 3);   -- 0

    assert (ValueI2 = SameValueI2)

      report "Values of same precedence are not evaluated left to right.";

    assert (ValueI2 /= DifferentValueI2)

      report "Values of same precedence are not evaluated left to right.";

    -- "*", "mod"

    ValueI3          := 14 mod 7 * 3;

    SameValueI3      := (14 mod 7) * 3;   -- 0

    DifferentValueI3 := 14 mod (7 * 3);   -- 14

    assert (ValueI3 = SameValueI3)

      report "Values of same precedence are not evaluated left to right.";

    assert (ValueI3 /= DifferentValueI3)

      report "Values of same precedence are not evaluated left to right.";

    -- "*", "rem"

    ValueI4          := 14 rem 7 * 3;

    SameValueI4      := (14 rem 7) * 3;   -- 0

    DifferentValueI4 := 14 rem (7 * 3);   -- 14

    assert (ValueI4 = SameValueI4)

      report "Values of same precedence are not evaluated left to right.";

    assert (ValueI4 /= DifferentValueI4)

      report "Values of same precedence are not evaluated left to right.";

    wait for 5 ns;

    assert NOT(    (ValueI1 = SameValueI1)   and

                   (ValueI1 /= DifferentValueI1)   and

                   (ValueI2 = SameValueI2)   and

                   (ValueI2 /= DifferentValueI2)   and

                   (ValueI3 = SameValueI3)   and

                   (ValueI3 /= DifferentValueI3)   and

                   (ValueI4 = SameValueI4)   and

                   (ValueI4 /= DifferentValueI4)   )

      report "***PASSED TEST: c07s02b00x00p09n02i01911"

      severity NOTE;

    assert (    (ValueI1 = SameValueI1)   and

                (ValueI1 /= DifferentValueI1)   and

                (ValueI2 = SameValueI2)   and

                (ValueI2 /= DifferentValueI2)   and

                (ValueI3 = SameValueI3)   and

                (ValueI3 /= DifferentValueI3)   and

                (ValueI4 = SameValueI4)   and

                (ValueI4 /= DifferentValueI4)   )

      report "***FAILED TEST: c07s02b00x00p09n02i01911 - Operators are not associated with their operands in textual order."

      severity ERROR;

    wait;

  END PROCESS TESTING;

END c07s02b00x00p09n02i01911arch;