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83 lines
2.6 KiB
OpenEdge ABL
83 lines
2.6 KiB
OpenEdge ABL
/* fp_mul_comba_6.i
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*
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* Copyright (C) 2006-2011 Sawtooth Consulting Ltd.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef TFM_MUL6
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void fp_mul_comba6(fp_int *A, fp_int *B, fp_int *C)
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{
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fp_digit c0, c1, c2, at[12];
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memcpy(at, A->dp, 6 * sizeof(fp_digit));
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memcpy(at+6, B->dp, 6 * sizeof(fp_digit));
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COMBA_START;
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COMBA_CLEAR;
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/* 0 */
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MULADD(at[0], at[6]);
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COMBA_STORE(C->dp[0]);
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/* 1 */
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COMBA_FORWARD;
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MULADD(at[0], at[7]); MULADD(at[1], at[6]);
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COMBA_STORE(C->dp[1]);
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/* 2 */
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COMBA_FORWARD;
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MULADD(at[0], at[8]); MULADD(at[1], at[7]); MULADD(at[2], at[6]);
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COMBA_STORE(C->dp[2]);
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/* 3 */
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COMBA_FORWARD;
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MULADD(at[0], at[9]); MULADD(at[1], at[8]); MULADD(at[2], at[7]); MULADD(at[3], at[6]);
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COMBA_STORE(C->dp[3]);
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/* 4 */
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COMBA_FORWARD;
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MULADD(at[0], at[10]); MULADD(at[1], at[9]); MULADD(at[2], at[8]); MULADD(at[3], at[7]); MULADD(at[4], at[6]);
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COMBA_STORE(C->dp[4]);
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/* 5 */
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COMBA_FORWARD;
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MULADD(at[0], at[11]); MULADD(at[1], at[10]); MULADD(at[2], at[9]); MULADD(at[3], at[8]); MULADD(at[4], at[7]); MULADD(at[5], at[6]);
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COMBA_STORE(C->dp[5]);
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/* 6 */
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COMBA_FORWARD;
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MULADD(at[1], at[11]); MULADD(at[2], at[10]); MULADD(at[3], at[9]); MULADD(at[4], at[8]); MULADD(at[5], at[7]);
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COMBA_STORE(C->dp[6]);
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/* 7 */
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COMBA_FORWARD;
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MULADD(at[2], at[11]); MULADD(at[3], at[10]); MULADD(at[4], at[9]); MULADD(at[5], at[8]);
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COMBA_STORE(C->dp[7]);
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/* 8 */
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COMBA_FORWARD;
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MULADD(at[3], at[11]); MULADD(at[4], at[10]); MULADD(at[5], at[9]);
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COMBA_STORE(C->dp[8]);
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/* 9 */
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COMBA_FORWARD;
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MULADD(at[4], at[11]); MULADD(at[5], at[10]);
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COMBA_STORE(C->dp[9]);
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/* 10 */
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COMBA_FORWARD;
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MULADD(at[5], at[11]);
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COMBA_STORE(C->dp[10]);
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COMBA_STORE2(C->dp[11]);
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C->used = 12;
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C->sign = A->sign ^ B->sign;
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fp_clamp(C);
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COMBA_FINI;
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}
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#endif
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