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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: tc3158.vhd,v 1.2 2001-10-26 16:29:52 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c05s03b00x00p16n01i03158ent IS
+END c05s03b00x00p16n01i03158ent;
+
+ARCHITECTURE c05s03b00x00p16n01i03158arch OF c05s03b00x00p16n01i03158ent IS
+ -- Define resolution function for SIG:
+ function RESFUNC( S : BIT_VECTOR ) return BIT is
+ begin
+ for I in S'RANGE loop
+ if (S(I) = '1') then
+ return '1';
+ end if;
+ end loop;
+ return '0';
+ end RESFUNC;
+
+ -- Define the signal.
+ subtype RBIT is RESFUNC BIT;
+ signal SIG : RBIT bus;
+
+ -- Use the implicit disconnect specification here.
+
+ -- Define the GUARD signal.
+ signal GUARD : BOOLEAN := FALSE;
+BEGIN
+
+ -- Define the guarded signal assignment.
+ L1: block
+ begin
+ SIG <= guarded '1';
+ end block L1;
+
+
+ TESTING: PROCESS
+ variable ShouldBeTime : TIME;
+ BEGIN
+ -- 1. Turn on the GUARD, verify that SIG gets toggled.
+ GUARD <= TRUE;
+ ShouldBeTime := NOW;
+ wait on SIG;
+ assert( SIG = '1' ) severity FAILURE;
+ assert( ShouldBeTime = NOW ) severity FAILURE;
+
+ -- 2. Turn off the GUARD, verify that SIG gets turned OFF.
+ GUARD <= FALSE;
+ ShouldBeTime := NOW;
+ wait on SIG;
+ assert( SIG = '0' ) severity FAILURE;
+ assert( ShouldBeTime = NOW ) severity FAILURE;
+
+ assert NOT( SIG = '0' and ShouldBeTime = NOW )
+ report "***PASSED TEST: c05s03b00x00p16n01i03158"
+ severity NOTE;
+ assert ( SIG = '0' and ShouldBeTime = NOW )
+ report "***FAILED TEST: c05s03b00x00p16n01i03158 - Default disconnect specification test failed."
+ severity ERROR;
+
+ -- Define a second driver for SIG, just for kicks.
+ -- Should never get invoked. Not have an effect on the value.
+ SIG <= '0' after 10 ns;
+ wait;
+ END PROCESS TESTING;
+
+END c05s03b00x00p16n01i03158arch;