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diff --git a/testsuite/vests/vhdl-ams/ashenden/compliant/files-and-IO/cache.vhd b/testsuite/vests/vhdl-ams/ashenden/compliant/files-and-IO/cache.vhd
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+++ b/testsuite/vests/vhdl-ams/ashenden/compliant/files-and-IO/cache.vhd
@@ -0,0 +1,78 @@
+
+-- 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 cache is
+  generic ( cache_size, block_size, associativity : positive;
+            benchmark_name : string(1 to 10) );
+  port ( halt : in bit );
+end entity cache;
+
+
+
+architecture instrumented of cache is
+
+begin
+
+  -- code from book
+
+  cache_monitor : process is
+
+    type measurement_record is
+      record
+        cache_size, block_size, associativity : positive;
+        benchmark_name : string(1 to 10);
+        miss_rate : real;
+        ave_access_time : delay_length;
+      end record;
+    type measurement_file is file of measurement_record;
+    file measurements : measurement_file
+      open append_mode is "cache-measurements";
+    -- . . .
+
+    -- not in book
+    constant miss_count : natural := 100;
+    constant total_accesses : natural := 1000;
+    constant total_delay : delay_length := 2400 ns;
+    -- end not in book
+
+  begin
+    -- . . .
+    loop
+      -- . . .
+      -- not in book
+      wait on halt;
+      -- end not in book
+      exit when halt = '1';
+      -- . . .
+    end loop;
+
+    write ( measurements,
+            measurement_record'(
+              -- write values of generics for this run
+              cache_size, block_size, associativity, benchmark_name,
+              -- calculate performance metrics
+              miss_rate => real(miss_count) / real(total_accesses),
+              ave_access_time => total_delay / total_accesses ) );
+    wait;
+
+  end process cache_monitor;
+
+  -- end code from book
+
+end architecture instrumented;