Import vests testsuite

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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/subprograms/motor_system.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/subprograms/motor_system.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 
+
+library ieee_proposed;  use ieee_proposed.electrical_systems.all;
+                        
+entity motor_system is
+  port ( terminal vp, vm : electrical;
+         terminal px : electrical_vector(1 to 3) );
+end entity motor_system;
+
+----------------------------------------------------------------
+
+architecture state_space of motor_system is
+  
+  quantity v_in across vp to vm;
+  quantity x across i_x through px to electrical_ref;
+  constant Tfb : real := 0.001;
+  constant Kfb : real := 1.0;
+  constant Te : real := 0.001;
+  constant Ke : real := 1.0;
+  constant Tm : real := 0.1;
+  constant Km : real := 1.0;
+        
+  type real_matrix is array (1 to 3, 1 to 3) of real;
+  constant c : real_matrix := ( ( -1.0/Tfb, 0.0, Kfb/Tfb ),
+                                ( -Ke/Te, -1.0/Te, 0.0 ),
+                                ( 0.0, Km/Tm, -1.0/Tm ) );
+        
+begin
+  
+  state_eqn : procedural is
+    variable sum : real_vector(1 to 3) := (0.0, 0.0, 0.0);
+  begin
+    for i in 1 to 3 loop
+      for j in 1 to 3 loop
+        sum(i) := sum(i) + c(i, j) * x(j);
+      end loop;
+    end loop;
+    x(1)'dot := sum(1);
+    x(2)'dot := sum(2) + (Ke/Te)*v_in;
+    x(3)'dot := sum(3);
+  end procedural state_eqn;
+        
+end architecture state_space;