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view libtommath/bn_mp_dr_setup.c @ 1793:f90e681b8b8c
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author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 29 Jan 2021 21:59:12 +0800 |
parents | 1051e4eea25a |
children |
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#include "tommath_private.h" #ifdef BN_MP_DR_SETUP_C /* LibTomMath, multiple-precision integer library -- Tom St Denis */ /* SPDX-License-Identifier: Unlicense */ /* determines the setup value */ void mp_dr_setup(const mp_int *a, mp_digit *d) { /* the casts are required if MP_DIGIT_BIT is one less than * the number of bits in a mp_digit [e.g. MP_DIGIT_BIT==31] */ *d = (mp_digit)(((mp_word)1 << (mp_word)MP_DIGIT_BIT) - (mp_word)a->dp[0]); } #endif