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diff --git a/driverlib/interrupt.h b/driverlib/interrupt.h
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+++ b/driverlib/interrupt.h
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+//*****************************************************************************
+//
+// interrupt.h - Prototypes for the NVIC Interrupt Controller Driver.
+//
+// Copyright (c) 2005-2012 Texas Instruments Incorporated.  All rights reserved.
+// Software License Agreement
+// 
+//   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 Texas Instruments Incorporated 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.
+// 
+// This is part of revision 9453 of the Stellaris Peripheral Driver Library.
+//
+//*****************************************************************************
+
+#ifndef __INTERRUPT_H__
+#define __INTERRUPT_H__
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+// Macro to generate an interrupt priority mask based on the number of bits
+// of priority supported by the hardware.
+//
+//*****************************************************************************
+#define INT_PRIORITY_MASK       ((0xFF << (8 - NUM_PRIORITY_BITS)) & 0xFF)
+
+//*****************************************************************************
+//
+// Prototypes for the APIs.
+//
+//*****************************************************************************
+extern tBoolean IntMasterEnable(void);
+extern tBoolean IntMasterDisable(void);
+extern void IntRegister(unsigned long ulInterrupt, void (*pfnHandler)(void));
+extern void IntUnregister(unsigned long ulInterrupt);
+extern void IntPriorityGroupingSet(unsigned long ulBits);
+extern unsigned long IntPriorityGroupingGet(void);
+extern void IntPrioritySet(unsigned long ulInterrupt,
+                           unsigned char ucPriority);
+extern long IntPriorityGet(unsigned long ulInterrupt);
+extern void IntEnable(unsigned long ulInterrupt);
+extern void IntDisable(unsigned long ulInterrupt);
+extern unsigned long IntIsEnabled(unsigned long ulInterrupt);
+extern void IntPendSet(unsigned long ulInterrupt);
+extern void IntPendClear(unsigned long ulInterrupt);
+extern void IntPriorityMaskSet(unsigned long ulPriorityMask);
+extern unsigned long IntPriorityMaskGet(void);
+
+//*****************************************************************************
+//
+// Mark the end of the C bindings section for C++ compilers.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __INTERRUPT_H__