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diff --git a/src/dev/x86/intdev.hh b/src/dev/x86/intdev.hh
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+/*
+ * Copyright (c) 2008 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.
+ *
+ * Authors: Gabe Black
+ */
+
+#ifndef __DEV_X86_INTDEV_HH__
+#define __DEV_X86_INTDEV_HH__
+
+#include <assert.h>
+
+#include "sim/sim_object.hh"
+#include "params/X86IntPin.hh"
+
+namespace X86ISA {
+
+class IntDev
+{
+  public:
+    virtual ~IntDev()
+    {}
+    virtual void
+    signalInterrupt(int line) = 0;
+};
+
+class IntPin : public SimObject
+{
+  protected:
+    IntDev * device;
+    int line;
+
+  public:
+    typedef X86IntPinParams Params;
+
+    const Params *
+    params() const
+    {
+        return dynamic_cast<const Params *>(_params);
+    }
+
+    IntPin(Params *p) : SimObject(p),
+            device(dynamic_cast<IntDev *>(p->device)), line(p->line)
+    {
+        assert(device);
+    }
+
+    void
+    signalInterrupt()
+    {
+        device->signalInterrupt(line);
+    }
+};
+
+}; // namespace X86ISA
+
+#endif //__DEV_X86_INTDEV_HH__