new file mode 100644
--- /dev/null
+++ b/packages/hal/mn10300/sim/current/include/plf_intr.h
@@ -0,0 +1,59 @@
+#ifndef CYGONCE_HAL_PLF_INTR_H
+#define CYGONCE_HAL_PLF_INTR_H
+
+//==========================================================================
+//
+//      plf_intr.h
+//
+//      MN10300 sim interrupt and clock support
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//
+// -------------------------------------------
+// The contents of this file are subject to the Cygnus eCos Public License
+// Version 1.0 (the "License"); you may not use this file except in
+// compliance with the License.  You may obtain a copy of the License at
+// http://sourceware.cygnus.com/ecos
+// 
+// Software distributed under the License is distributed on an "AS IS"
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the
+// License for the specific language governing rights and limitations under
+// the License.
+// 
+// The Original Code is eCos - Embedded Cygnus Operating System, released
+// September 30, 1998.
+// 
+// The Initial Developer of the Original Code is Cygnus.  Portions created
+// by Cygnus are Copyright (C) 1998,1999 Cygnus Solutions.  All Rights Reserved.
+// -------------------------------------------
+//
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    jlarmour
+// Contributors: jlarmour
+// Date:         1999-09-09
+// Purpose:      Define Interrupt support
+// Description:  The macros defined here provide the HAL APIs for handling
+//               interrupts and the clock for the simulator. This file
+//               is empty since none are required!
+//              
+// Usage:
+//              #include <cyg/hal/plf_intr.h>
+//              ...
+//              
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+
+//--------------------------------------------------------------------------
+
+// Nothing to do
+
+//--------------------------------------------------------------------------
+#endif // ifndef CYGONCE_HAL_PLF_INTR_H
+// End of plf_intr.h