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diff --git a/dev/simple_disk.hh b/dev/simple_disk.hh
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+/*
+ * Copyright (c) 2003 The Regents of The University of Michigan
+ * 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.
+ */
+
+/* @file
+ * Simple disk interface for the system console
+ */
+
+#ifndef __SIMPLE_DISK_HH__
+#define __SIMPLE_DISK_HH__
+
+#include "physical_memory.hh"
+#include "sim_object.hh"
+
+class DiskImage;
+
+/*
+ * Trivial interface to a disk image used by the System Console
+ */
+class SimpleDisk : public SimObject
+{
+public:
+  typedef uint64_t baddr_t;
+
+protected:
+  PhysicalMemory  *physmem;
+  DiskImage *image;
+
+public:
+  SimpleDisk(const std::string &name, PhysicalMemory *pmem, DiskImage *img);
+  ~SimpleDisk();
+
+  void read(Addr addr, baddr_t block, int count) const;
+  void write(Addr addr, baddr_t block, int count);
+};
+#endif // __SIMPLE_DISK_HH__