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40
41 /*
42 // Purpose:
43 // Intel(R) Integrated Performance Primitives. Cryptography Primitives.
44 // Internal Miscellaneous BNU 32 bit Definitions & Function Prototypes
45 //
46 //
47 */
48
49 #if !defined(_CP_BNU32_MISC_H)
50 #define _CP_BNU32_MISC_H
51
52
53 /* bit operations */
54 #define BITSIZE_BNU32(p,ns) ((ns)*BNU_CHUNK_32BIT-cpNLZ_BNU32((p)[(ns)-1]))
55
56 /* number of leading/trailing zeros */
57 #define cpNLZ_BNU32 OWNAPI(cpNLZ_BNU32)
58 cpSize cpNLZ_BNU32(Ipp32u x);
59
60 /* most significant BNU bit */
cpMSBit_BNU32(const Ipp32u * pA,cpSize nsA)61 __INLINE int cpMSBit_BNU32(const Ipp32u* pA, cpSize nsA)
62 {
63 FIX_BNU(pA, nsA);
64 return nsA*BITSIZE(Ipp32u) - cpNLZ_BNU32(pA[nsA-1]) -1;
65 }
66
67
cpCmp_BNU32(const Ipp32u * pA,cpSize nsA,const Ipp32u * pB,cpSize nsB)68 __INLINE int cpCmp_BNU32(const Ipp32u* pA, cpSize nsA, const Ipp32u* pB, cpSize nsB)
69 {
70 if(nsA!=nsB)
71 return nsA>nsB? 1 : -1;
72 else {
73 for(; nsA>0; nsA--) {
74 if(pA[nsA-1] > pB[nsA-1])
75 return 1;
76 else if(pA[nsA-1] < pB[nsA-1])
77 return -1;
78 }
79 return 0;
80 }
81 }
82
83 /* to/from oct string conversion */
84 #define cpToOctStr_BNU32 OWNAPI(cpToOctStr_BNU32)
85 cpSize cpToOctStr_BNU32(Ipp8u* pStr, cpSize strLen, const Ipp32u* pBNU, cpSize bnuSize);
86 #define cpFromOctStr_BNU32 OWNAPI(cpFromOctStr_BNU32)
87 cpSize cpFromOctStr_BNU32(Ipp32u* pBNU, const Ipp8u* pOctStr, cpSize strLen);
88
89 #endif /* _CP_BNU32_MISC_H */
90