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diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc1975.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc1975.vhd
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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: tc1975.vhd,v 1.2 2001-10-26 16:29:44 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c07s02b01x00p02n02i01975ent IS
+  constant T:bit := '1';
+  constant F:bit := '0';
+END c07s02b01x00p02n02i01975ent;
+
+ARCHITECTURE c07s02b01x00p02n02i01975arch OF c07s02b01x00p02n02i01975ent IS
+
+BEGIN
+  TESTING: PROCESS
+    variable A1 : bit := T;
+    variable A2 : bit := F;
+  BEGIN
+    assert NOT(    (A1 and A1) = '1'   and
+                   (A1 and A2) = '0'   and
+                   (A2 and A1) = '0'   and
+                   (A2 and A2) = '0'   and
+                   (A1 or A1) = '1'   and
+                   (A1 or A2) = '1'   and
+                   (A2 or A1) = '1'   and
+                   (A2 or A2) = '0'   and
+                   (A1 xor A1) = '0'   and
+                   (A1 xor A2) = '1'   and
+                   (A2 xor A1) = '1'   and
+                   (A2 xor A2) = '0'   and
+                   (A1 nand A1) = '0'   and
+                   (A1 nand A2) = '1'   and
+                   (A2 nand A1) = '1'   and
+                   (A2 nand A2) = '1'   and
+                   (A1 nor A1) = '0'   and
+                   (A1 nor A2) = '0'   and
+                   (A2 nor A1) = '0'   and
+                   (A2 nor A2) = '1'   and
+                   (not A1) = '0'      and
+                   (not A2) = '1')
+      report "***PASSED TEST: c07s02b01x00p02n02i01975"
+      severity NOTE;
+    assert (    (A1 and A1) = '1'   and
+                (A1 and A2) = '0'   and
+                (A2 and A1) = '0'   and
+                (A2 and A2) = '0'   and
+                (A1 or A1) = '1'   and
+                (A1 or A2) = '1'   and
+                (A2 or A1) = '1'   and
+                (A2 or A2) = '0'   and
+                (A1 xor A1) = '0'   and
+                (A1 xor A2) = '1'   and
+                (A2 xor A1) = '1'   and
+                (A2 xor A2) = '0'   and
+                (A1 nand A1) = '0'   and
+                (A1 nand A2) = '1'   and
+                (A2 nand A1) = '1'   and
+                (A2 nand A2) = '1'   and
+                (A1 nor A1) = '0'   and
+                (A1 nor A2) = '0'   and
+                (A2 nor A1) = '0'   and
+                (A2 nor A2) = '1'   and
+                (not A1) = '0'      and
+                (not A2) = '1')
+      report "***FAILED TEST: c07s02b01x00p02n02i01975 - BIT type truth table test failed." 
+      severity ERROR;
+    wait;
+  END PROCESS TESTING;
+
+END c07s02b01x00p02n02i01975arch;