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33 lines
985 B
C
33 lines
985 B
C
#include <tommath.h>
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#ifdef BN_MP_DR_SETUP_C
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/* LibTomMath, multiple-precision integer library -- Tom St Denis
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*
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* LibTomMath is a library that provides multiple-precision
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* integer arithmetic as well as number theoretic functionality.
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*
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* The library was designed directly after the MPI library by
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* Michael Fromberger but has been written from scratch with
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* additional optimizations in place.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@gmail.com, http://math.libtomcrypt.com
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*/
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/* determines the setup value */
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void mp_dr_setup(mp_int *a, mp_digit *d)
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{
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/* the casts are required if DIGIT_BIT is one less than
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* the number of bits in a mp_digit [e.g. DIGIT_BIT==31]
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*/
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*d = (mp_digit)((((mp_word)1) << ((mp_word)DIGIT_BIT)) -
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((mp_word)a->dp[0]));
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}
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#endif
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/* $Source: /cvs/libtom/libtommath/bn_mp_dr_setup.c,v $ */
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/* $Revision: 1.3 $ */
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/* $Date: 2006/03/31 14:18:44 $ */
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