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- /*
- * Copyright (C) 2016 Intel Corporation. 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 Intel Corporation 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.
- *
- */
- #if !defined(_CP_BNU_IMPL_H)
- #define _CP_BNU_IMPL_H
- #define BNU_CHUNK_64BIT (64)
- #define BNU_CHUNK_32BIT (32)
- /*
- // define BNU chunk data type
- */
- #if ((_IPP_ARCH == _IPP_ARCH_EM64T) || (_IPP_ARCH == _IPP_ARCH_LP64) || (_IPP_ARCH == _IPP_ARCH_LRB) || (_IPP_ARCH == _IPP_ARCH_LRB2))
- typedef Ipp64u BNU_CHUNK_T;
- typedef Ipp64s BNS_CHUNK_T;
- #define BNU_CHUNK_LOG2 (6)
- #define BNU_CHUNK_BITS BNU_CHUNK_64BIT
- #else
- typedef Ipp32u BNU_CHUNK_T;
- typedef Ipp32s BNS_CHUNK_T;
- #define BNU_CHUNK_LOG2 (5)
- #define BNU_CHUNK_BITS BNU_CHUNK_32BIT
- #endif
- #define BNU_CHUNK_MASK (~(BNU_CHUNK_T)(0))
- #if (BNU_CHUNK_BITS == BNU_CHUNK_64BIT)
- #pragma message ("BNU_CHUNK_BITS = 64 bit")
- #elif (BNU_CHUNK_BITS == BNU_CHUNK_32BIT)
- #pragma message ("BNU_CHUNK_BITS = 32 bit")
- #else
- #error BNU_CHUNK_BITS should be either 64 or 32 bit!
- #endif
- #ifdef _MSC_VER
- # pragma warning( disable : 4127)
- #endif
- /* user's API BNU chunk data type */
- typedef Ipp32u API_BNU_CHUNK_T;
- /* convert API_BNU_CHUNK_T (usual Ipp32u) length into the BNU_CHUNK_T length */
- #define INTERNAL_BNU_LENGTH(apiLen) \
- ((apiLen) + sizeof(BNU_CHUNK_T)/sizeof(API_BNU_CHUNK_T) -1)/(sizeof(BNU_CHUNK_T)/sizeof(API_BNU_CHUNK_T))
- /* Low and High parts of BNU_CHUNK_T value */
- #define BNU_CHUNK_2H ((BNU_CHUNK_T)1 << (BNU_CHUNK_BITS/2))
- #define LO_CHUNK(c) ((BNU_CHUNK_T)(c) & (BNU_CHUNK_2H - 1))
- #define HI_CHUNK(c) ((BNU_CHUNK_T)(c) >> (BNU_CHUNK_BITS/2))
- /* (carry,R) = A+B */
- #define ADD_AB(CARRY,R, A,B) \
- do { \
- BNU_CHUNK_T __s = (A) + (B); \
- (CARRY) = __s < (A); \
- (R) = __s; \
- } while(0)
- /* (carry,R) = A+B+C */
- #define ADD_ABC(CARRY,R, A,B,C) \
- do { \
- BNU_CHUNK_T __s = (A) + (B); \
- BNU_CHUNK_T __t1= __s < (A); \
- BNU_CHUNK_T __r = __s + (C); \
- BNU_CHUNK_T __t2 = __r < __s; \
- (CARRY) = __t1 + __t2; \
- (R) = __r; \
- } while(0)
- /* (borrow,R) = A-B */
- #define SUB_AB(BORROW,R, A,B) \
- do { \
- (BORROW) = (A)<(B); \
- (R) = (A)-(B); \
- } while(0)
- /* (borrow,R) = A-B-C */
- #define SUB_ABC(BORROW,R, A,B,C) \
- do { \
- BNU_CHUNK_T __s = (A) -( B); \
- BNU_CHUNK_T __t1= __s > (A); \
- BNU_CHUNK_T __r = __s - (C); \
- BNU_CHUNK_T __t2 = __r > __s; \
- (BORROW) = __t1 + __t2; \
- (R) = __r; \
- } while(0)
- /* (RH,RL) = A*B */
- #define MUL_AB(RH, RL, A, B) \
- do { \
- BNU_CHUNK_T __aL = LO_CHUNK((A)); \
- BNU_CHUNK_T __aH = HI_CHUNK((A)); \
- BNU_CHUNK_T __bL = LO_CHUNK((B)); \
- BNU_CHUNK_T __bH = HI_CHUNK((B)); \
- \
- BNU_CHUNK_T __x0 = (BNU_CHUNK_T) __aL * __bL; \
- BNU_CHUNK_T __x1 = (BNU_CHUNK_T) __aL * __bH; \
- BNU_CHUNK_T __x2 = (BNU_CHUNK_T) __aH * __bL; \
- BNU_CHUNK_T __x3 = (BNU_CHUNK_T) __aH * __bH; \
- \
- __x1 += HI_CHUNK(__x0); \
- __x1 += __x2; \
- if(__x1 < __x2) \
- __x3 += BNU_CHUNK_2H; \
- \
- (RH) = __x3 + HI_CHUNK(__x1); \
- (RL) = (__x1 << BNU_CHUNK_BITS/2) + LO_CHUNK(__x0); \
- } while (0)
- #endif /* _CP_BNU_IMPL_H */
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