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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: tc1215.vhd,v 1.2 2001-10-26 16:29:39 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c08s01b00x00p26n01i01215ent IS
+END c08s01b00x00p26n01i01215ent;
+
+ARCHITECTURE c08s01b00x00p26n01i01215arch OF c08s01b00x00p26n01i01215ent IS
+ -- Local signals.
+ signal A : BIT;
+BEGIN
+ TESTING: PROCESS
+ -- Local variables.
+ variable ShouldBeTime : TIME;
+ variable I : INTEGER;
+ variable k : integer := 0;
+ BEGIN
+ -- Given that a particular condition will never be TRUE,
+ -- verify that we always wait for the desired amount of time.
+ for I in 0 to 100 loop
+ -- Perform the assignment.
+ if ((I mod 2) = 0) then
+ A <= '1' after 1 ns;
+ else
+ A <= '0' after 1 ns;
+ end if;
+
+ -- Compute the time we should end the wait statement.
+ ShouldBeTime := NOW + 2 ns;
+
+ -- Wait the desired amount of time. Note that the condition
+ -- will never be TRUE.
+ if ((I mod 2) = 0) then
+ wait until (A = '0') for 2 ns;
+ else
+ wait until (A = '1') for 2 ns;
+ end if;
+
+ -- Assert that we ended on time.
+ assert (ShouldBeTime = NOW);
+ if (ShouldBeTime /= NOW) then
+ k := 1;
+ end if;
+ end loop;
+ assert NOT(k=0)
+ report "***PASSED TEST: c08s01b00x00p26n01i01215"
+ severity NOTE;
+ assert (k=0)
+ report "***FAILED TEST: c08s01b00x00p26n01i01215 - The timeout clause specifies the maximum amount of time the process will remain suspended at this wait statement."
+ severity ERROR;
+ wait;
+ END PROCESS TESTING;
+
+END c08s01b00x00p26n01i01215arch;