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diff --git a/ext/ipp/sources/ippcp/pcpbnu32misc.h b/ext/ipp/sources/ippcp/pcpbnu32misc.h
new file mode 100644
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+++ b/ext/ipp/sources/ippcp/pcpbnu32misc.h
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+/*******************************************************************************
+* Copyright 2002-2018 Intel Corporation
+* All Rights Reserved.
+*
+* If this  software was obtained  under the  Intel Simplified  Software License,
+* the following terms apply:
+*
+* The source code,  information  and material  ("Material") contained  herein is
+* owned by Intel Corporation or its  suppliers or licensors,  and  title to such
+* Material remains with Intel  Corporation or its  suppliers or  licensors.  The
+* Material  contains  proprietary  information  of  Intel or  its suppliers  and
+* licensors.  The Material is protected by  worldwide copyright  laws and treaty
+* provisions.  No part  of  the  Material   may  be  used,  copied,  reproduced,
+* modified, published,  uploaded, posted, transmitted,  distributed or disclosed
+* in any way without Intel's prior express written permission.  No license under
+* any patent,  copyright or other  intellectual property rights  in the Material
+* is granted to  or  conferred  upon  you,  either   expressly,  by implication,
+* inducement,  estoppel  or  otherwise.  Any  license   under such  intellectual
+* property rights must be express and approved by Intel in writing.
+*
+* Unless otherwise agreed by Intel in writing,  you may not remove or alter this
+* notice or  any  other  notice   embedded  in  Materials  by  Intel  or Intel's
+* suppliers or licensors in any way.
+*
+*
+* If this  software  was obtained  under the  Apache License,  Version  2.0 (the
+* "License"), the following terms apply:
+*
+* You may  not use this  file except  in compliance  with  the License.  You may
+* obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+*
+*
+* Unless  required  by   applicable  law  or  agreed  to  in  writing,  software
+* distributed under the License  is distributed  on an  "AS IS"  BASIS,  WITHOUT
+* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*
+* See the   License  for the   specific  language   governing   permissions  and
+* limitations under the License.
+*******************************************************************************/
+
+/* 
+//  Purpose:
+//     Intel(R) Integrated Performance Primitives. Cryptography Primitives.
+//     Internal Miscellaneous BNU 32 bit Definitions & Function Prototypes
+// 
+// 
+*/
+
+#if !defined(_CP_BNU32_MISC_H)
+#define _CP_BNU32_MISC_H
+
+
+/* bit operations */
+#define BITSIZE_BNU32(p,ns)  ((ns)*BNU_CHUNK_32BIT-cpNLZ_BNU32((p)[(ns)-1]))
+
+/* number of leading/trailing zeros */
+#define cpNLZ_BNU32 OWNAPI(cpNLZ_BNU32)
+cpSize  cpNLZ_BNU32(Ipp32u x);
+
+/* most significant BNU bit */
+__INLINE int cpMSBit_BNU32(const Ipp32u* pA, cpSize nsA)
+{
+   FIX_BNU(pA, nsA);
+   return nsA*BITSIZE(Ipp32u) - cpNLZ_BNU32(pA[nsA-1]) -1;
+}
+
+
+__INLINE int cpCmp_BNU32(const Ipp32u* pA, cpSize nsA, const Ipp32u* pB, cpSize nsB)
+{
+   if(nsA!=nsB)
+      return nsA>nsB? 1 : -1;
+   else {
+      for(; nsA>0; nsA--) {
+         if(pA[nsA-1] > pB[nsA-1])
+            return 1;
+         else if(pA[nsA-1] < pB[nsA-1])
+            return -1;
+      }
+      return 0;
+   }
+}
+
+/* to/from oct string conversion */
+#define cpToOctStr_BNU32 OWNAPI(cpToOctStr_BNU32)
+cpSize  cpToOctStr_BNU32(Ipp8u* pStr, cpSize strLen, const Ipp32u* pBNU, cpSize bnuSize);
+#define cpFromOctStr_BNU32 OWNAPI(cpFromOctStr_BNU32)
+cpSize  cpFromOctStr_BNU32(Ipp32u* pBNU, const Ipp8u* pOctStr, cpSize strLen);
+
+#endif /* _CP_BNU32_MISC_H */