Import vests testsuite

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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/composite-data/modem_controller.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/composite-data/modem_controller.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 modem_controller is
+
+end entity modem_controller;
+
+
+----------------------------------------------------------------
+
+
+architecture test of modem_controller is
+begin
+
+  -- code from book:
+
+  modem_controller : process is
+
+    type symbol is ('a', 't', 'd', 'h', digit, cr, other);
+    type symbol_string is array (1 to 20) of symbol;
+    type state is range 0 to 6;
+    type transition_matrix is array (state, symbol) of state;
+
+    constant next_state : transition_matrix :=
+      ( 0 => ('a' => 1, others => 6),
+        1 => ('t' => 2, others => 6),
+        2 => ('d' => 3, 'h' => 5, others => 6),
+        3 => (digit => 4, others => 6),
+        4 => (digit => 4, cr => 0, others => 6),
+        5 => (cr => 0, others => 6),
+        6 => (cr => 0, others => 6) );
+
+    variable command : symbol_string;
+    variable current_state : state := 0;
+
+    -- not in book:
+    type sample_array is array (positive range <>) of symbol_string;
+    constant sample_command : sample_array :=
+      ( 1 => ( 'a', 't', 'd', digit, digit, cr, others => other ),
+        2 => ( 'a', 't', 'h', cr, others => other ),
+        3 => ( 'a', 't', other, other, cr, others => other ) );
+    -- end not in book
+
+  begin
+    -- . . .
+    -- not in book:
+    for command_index in sample_command'range loop
+      command := sample_command(command_index);
+    -- end not in book
+    for index in 1 to 20 loop
+      current_state := next_state( current_state, command(index) );
+      case current_state is
+        -- . . .
+        -- not in book:
+        when 0 => exit;
+        when others => null;
+        -- end not in book
+      end case;
+    end loop;
+    -- . . .
+    -- not in book:
+    end loop;
+    wait;
+    -- end not in book
+  end process modem_controller;
+
+  -- end of code from book
+
+end architecture test;