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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/subprograms/limited.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/subprograms/limited.vhd
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+
+-- Copyright (C) 2002 Morgan Kaufmann Publishers, Inc
+
+-- 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 
+
+entity limited is
+end entity limited;
+
+
+
+architecture test of limited is
+
+  -- code from book
+
+  function limited ( value, min, max : real ) return real is
+  begin
+    if value > max then
+      return max;
+    elsif value < min then
+      return min;
+    else
+      return value;
+    end if;
+  end function limited;
+
+  -- end code from book
+
+begin
+
+  tester : process is
+
+    variable new_temperature, current_temperature, increment : real;
+    variable new_motor_speed, old_motor_speed,
+             scale_factor, error : real;
+
+  begin
+
+    current_temperature := 75.0;
+    increment := 10.0;
+
+    -- code from book (in text)
+
+    new_temperature := limited ( current_temperature + increment, 10.0, 100.0 );
+
+    -- end code from book
+
+    increment := 60.0;
+    new_temperature := limited ( current_temperature + increment, 10.0, 100.0 );
+    increment := -100.0;
+    new_temperature := limited ( current_temperature + increment, 10.0, 100.0 );
+
+    old_motor_speed := 1000.0;
+    scale_factor := 5.0;
+    error := 5.0;
+
+    -- code from book (in text)
+
+    new_motor_speed := old_motor_speed
+                       + scale_factor * limited ( error, -10.0, +10.0 );
+
+    -- end code from book
+
+    error := 15.0;
+    new_motor_speed := old_motor_speed
+                       + scale_factor * limited ( error, -10.0, +10.0 );
+
+    error := -20.0;
+    new_motor_speed := old_motor_speed
+                       + scale_factor * limited ( error, -10.0, +10.0 );
+
+    wait;
+  end process tester;
+
+end architecture test;