+/*
+ * Copyright (c) 2009-2012 Mark D. Hill and David A. Wood
+ * Copyright (c) 2010-2012 Advanced Micro Devices, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met: redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer;
+ * redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution;
+ * neither the name of the copyright holders nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+machine(MachineType:Directory, "Directory protocol")
+ : DirectoryMemory * directory;
+ Cycles directory_latency := 12;
+ Cycles to_memory_controller_latency := 1;
+
+ MessageBuffer * forwardFromDir, network="To", virtual_network="3",
+ vnet_type="forward";
+ MessageBuffer * responseFromDir, network="To", virtual_network="4",
+ vnet_type="response";
+ MessageBuffer * dmaResponseFromDir, network="To", virtual_network="1",
+ vnet_type="response";
+
+ MessageBuffer * requestToDir, network="From", virtual_network="2",
+ vnet_type="request";
+ MessageBuffer * dmaRequestToDir, network="From", virtual_network="0",
+ vnet_type="request";
+ MessageBuffer * responseFromMemory;