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-- 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: tc168.vhd,v 1.2 2001-10-26 16:29:42 paw Exp $
-- $Revision: 1.2 $
--
-- ---------------------------------------------------------------------
ENTITY c04s03b03x00p01n01i00168ent IS
END c04s03b03x00p01n01i00168ent;
ARCHITECTURE c04s03b03x00p01n01i00168arch OF c04s03b03x00p01n01i00168ent IS
BEGIN
TESTING: PROCESS
variable V1 : INTEGER := 1;
alias V1_A1 : INTEGER is V1;
-- scalar alias of scalar
-- alias of variable
alias V1_A2 : INTEGER is V1_A1;
-- alias of alias
variable pass : integer := 0;
BEGIN
assert V1 = 1;
assert V1_A1 = 1;
assert V1_A2 = 1;
if (V1 /= 1 or V1_A1 /= 1 or V1_A2 /= 1) then
pass := 1;
end if;
V1 := 2; -- change value...
assert V1 = 2;
assert V1_A1 = 2; -- ... check read
assert V1_A2 = 2; -- ... check read
if (V1 /= 2 or V1_A1 /= 2 or V1_A2 /= 2) then
pass := 1;
end if;
V1_A1 := 3; -- change value using alias
assert V1 = 3; -- ... check that value changed
assert V1_A1 = 3;
assert V1_A2 = 3;
if (V1 /= 3 or V1_A1 /= 3 or V1_A2 /= 3) then
pass := 1;
end if;
V1_A2 := 4; -- change value using alias
assert V1 = 4; -- ... check that value changed
assert V1_A1 = 4;
assert V1_A2 = 4;
if (V1 /= 4 or V1_A1 /= 4 or V1_A2 /= 4) then
pass := 1;
end if;
wait for 5 ns;
assert NOT( pass = 0 )
report "***PASSED TEST: c04s03b03x00p01n01i00168"
severity NOTE;
assert ( pass = 0 )
report "***FAILED TEST: c04s03b03x00p01n01i00168 - Alias of alias variable test failed."
severity ERROR;
wait;
END PROCESS TESTING;
END c04s03b03x00p01n01i00168arch;
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