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diff --git a/cpukit/rtems/include/rtems/rtems/intr.h b/cpukit/rtems/include/rtems/rtems/intr.h
new file mode 100644
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+++ b/cpukit/rtems/include/rtems/rtems/intr.h
@@ -0,0 +1,136 @@
+/**
+ *  @file rtems/rtems/intr.h
+ *
+ *  @brief Header file for the Interrupt Manager.
+ *
+ *  This include file contains all the constants and structures associated with
+ *  the Interrupt Manager.
+ */
+
+/*  COPYRIGHT (c) 1989-2008.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifndef _RTEMS_RTEMS_INTR_H
+#define _RTEMS_RTEMS_INTR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <rtems/score/isr.h>
+
+/**
+ *  @defgroup ClassicINTR Interrupts
+ *
+ *  @ingroup ClassicRTEMS
+ *
+ *  This encapsulates functionality which XXX
+ */
+/**@{*/
+
+/**
+ *  @brief Interrupt level type.
+ */
+typedef ISR_Level rtems_interrupt_level;
+
+/**
+ *  @brief Control block type used to manage the vectors.
+ */
+typedef ISR_Vector_number rtems_vector_number;
+
+/**
+ *  @brief Return type for interrupt handler.
+ */
+typedef void rtems_isr;
+
+/**
+ *  @brief Interrupt handler type.
+ *
+ *  @see rtems_interrupt_catch()
+ */
+typedef rtems_isr ( *rtems_isr_entry )(
+                 rtems_vector_number
+             );
+
+#if (CPU_SIMPLE_VECTORED_INTERRUPTS == TRUE)
+/**
+ *  @brief Implementation of the rtems_interrupt_catch directive.
+ *
+ *  This directive installs @a new_isr_handler as the RTEMS interrupt service
+ *  routine for the interrupt vector with number @a vector.  The previous RTEMS
+ *  interrupt service routine is returned in @a old_isr_handler.
+ */
+rtems_status_code rtems_interrupt_catch(
+  rtems_isr_entry      new_isr_handler,
+  rtems_vector_number  vector,
+  rtems_isr_entry     *old_isr_handler
+);
+#endif
+
+/**
+ *  @brief Disables all maskable interrupts and returns the previous level in
+ *  @a _isr_cookie.
+ *
+ *  @note The interrupt level shall be of type @ref rtems_interrupt_level.
+ */
+#define rtems_interrupt_disable( _isr_cookie ) \
+    _ISR_Disable(_isr_cookie)
+
+/**
+ *  @brief Enables maskable interrupts to the level indicated by @a
+ *  _isr_cookie.
+ *
+ *  @note The interrupt level shall be of type @ref rtems_interrupt_level.
+ */
+#define rtems_interrupt_enable( _isr_cookie ) \
+    _ISR_Enable(_isr_cookie)
+
+/**
+ *  @brief Temporarily enables maskable interrupts to the level in @a
+ *  _isr_cookie before redisabling them.
+ *
+ *  @note The interrupt level shall be of type @ref rtems_interrupt_level.
+ */
+#define rtems_interrupt_flash( _isr_cookie ) \
+    _ISR_Flash(_isr_cookie)
+
+/**
+ *  @brief Returns true if the processor is currently servicing an interrupt
+ *  and false otherwise.
+ *
+ *  A return value of true indicates that the caller is an interrupt service
+ *  routine and @b not a thread.  The directives available to an interrupt
+ *  service routine are restricted.
+ */
+#define rtems_interrupt_is_in_progress() \
+    _ISR_Is_in_progress()
+
+/**
+ *  @brief This routine generates an interrupt.
+ *
+ *  @note No implementation.
+ */
+#define rtems_interrupt_cause( _interrupt_to_cause )
+
+/**
+ *  @brief This routine clears the specified interrupt.
+ *
+ *  @note No implementation.
+ */
+#define rtems_interrupt_clear( _interrupt_to_clear )
+
+#ifdef __cplusplus
+}
+#endif
+
+/**@}*/
+
+#endif
+/* end of include file */