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diff --git a/testsuite/vests/vhdl-93/billowitch/compliant/tc1986.vhd b/testsuite/vests/vhdl-93/billowitch/compliant/tc1986.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: tc1986.vhd,v 1.2 2001-10-26 16:29:44 paw Exp $
+-- $Revision: 1.2 $
+--
+-- ---------------------------------------------------------------------
+
+ENTITY c07s02b02x00p02n01i01986ent IS
+  type omega is range (-100) to 100
+    units
+      o1;
+      o2  = 5 o1;
+      o3  = 10 o1;
+    end units;
+END c07s02b02x00p02n01i01986ent;
+
+ARCHITECTURE c07s02b02x00p02n01i01986arch OF c07s02b02x00p02n01i01986ent IS
+
+BEGIN
+  TESTING: PROCESS
+    variable om1, om2, om3 : omega;
+
+    --alias in A of variable in A of E physical type
+    
+    alias al1 : omega is om1;
+    alias al2 : omega is om2;
+    alias al3 : omega is om3;
+  BEGIN
+    om1 := 4 o1;
+    om2 := 5 o1;
+    om3 := 6 o1;
+
+    assert NOT(     5 o1 = 5 o1      and
+                    5 o1 = abs(5 o1)   and
+                    5 o1 = abs(-5 o1)   and
+                    4 o1 /= 5 o1      and
+                    4 o1 /= abs(5 o1)   and
+                    4 o1 /= abs(-5 o1)   and
+                    4 o1 <= 5 o1      and
+                    4 o1 <= abs(5 o1)   and
+                    4 o1 <= abs(-5 o1)   and
+                    5 o1 <= abs(-5 o1)   and
+                    4 o1 < 5 o1      and
+                    4 o1 < abs(5 o1)   and
+                    4 o1 < abs(-5 o1)   and
+                    6 o1 >= 5 o1      and
+                    6 o1 >= abs(5 o1)   and
+                    6 o1 >= abs(-5 o1)   and
+                    5 o1 >= abs(-5 o1)   and
+                    6 o1 > 5 o1      and
+                    6 o1 > abs(5 o1)   and
+                    6 o1 > abs(-5 o1)   and
+                    
+--relation operators with variables
+                    
+                    om1 = om1      and
+                    om2 = abs(om2)      and
+                    om2 = abs(-om2)   and
+                    om1 /= om2      and
+                    om1 /= abs(om2)   and
+                    om1 /= abs(-om2)   and
+                    om1 <= om2      and
+                    om1 <= abs(om2)   and
+                    om1 <= abs(-om2)   and
+                    om2 <= abs(-om2)   and
+                    om1 < om2      and
+                    om1 < abs(om2)      and
+                    om1 < abs(-om2)   and
+                    om2 >= om1      and
+                    om2 >= abs(om1)   and
+                    om2 >= abs(-om1)   and
+                    om2 >= abs(-om1)   and
+                    om2 > om1      and
+                    om2 > abs(om1)      and
+                    om2 > abs(-om1)   )
+      report "***PASSED TEST: c07s02b02x00p02n01i01986"
+      severity NOTE;
+    assert (     5 o1 = 5 o1      and
+                 5 o1 = abs(5 o1)   and
+                 5 o1 = abs(-5 o1)   and
+                 4 o1 /= 5 o1      and
+                 4 o1 /= abs(5 o1)   and
+                 4 o1 /= abs(-5 o1)   and
+                 4 o1 <= 5 o1      and
+                 4 o1 <= abs(5 o1)   and
+                 4 o1 <= abs(-5 o1)   and
+                 5 o1 <= abs(-5 o1)   and
+                 4 o1 < 5 o1      and
+                 4 o1 < abs(5 o1)   and
+                 4 o1 < abs(-5 o1)   and
+                 6 o1 >= 5 o1      and
+                 6 o1 >= abs(5 o1)   and
+                 6 o1 >= abs(-5 o1)   and
+                 5 o1 >= abs(-5 o1)   and
+                 6 o1 > 5 o1      and
+                 6 o1 > abs(5 o1)   and
+                 6 o1 > abs(-5 o1)   and
+                 
+--relation operators with variables
+                 
+                 om1 = om1      and
+                 om2 = abs(om2)      and
+                 om2 = abs(-om2)   and
+                 om1 /= om2      and
+                 om1 /= abs(om2)   and
+                 om1 /= abs(-om2)   and
+                 om1 <= om2      and
+                 om1 <= abs(om2)   and
+                 om1 <= abs(-om2)   and
+                 om2 <= abs(-om2)   and
+                 om1 < om2      and
+                 om1 < abs(om2)      and
+                 om1 < abs(-om2)   and
+                 om2 >= om1      and
+                 om2 >= abs(om1)   and
+                 om2 >= abs(-om1)   and
+                 om2 >= abs(-om1)   and
+                 om2 > om1      and
+                 om2 > abs(om1)      and
+                 om2 > abs(-om1)   )
+      report "***FAILED TEST: c07s02b02x00p02n01i01986 - Relational operators truth table test for data type of Physical failed."
+      severity ERROR;
+    wait;
+  END PROCESS TESTING;
+
+END c07s02b02x00p02n01i01986arch;