1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * This file contains bignum implementation code that 28 * is specific to AMD64, but which is still more appropriate 29 * to write in C, rather than assembly language. 30 * bignum_amd64_asm.S does all the assembly language code 31 * for AMD64 specific bignum support. The assembly language 32 * source file has pure code, no data. Let the C compiler 33 * generate what is needed to handle the variations in 34 * data representation and addressing, for example, 35 * statically linked vs PIC. 36 */ 37 38 #include "bignum.h" 39 40 /* 41 * The bignum interface deals with arrays of 64-bit "chunks" or "digits". 42 * Data should be aligned on 8-byte address boundaries for best performance. 43 */ 44 45 46 void 47 big_mul_vec(BIG_CHUNK_TYPE *r, BIG_CHUNK_TYPE *a, int alen, 48 BIG_CHUNK_TYPE *b, int blen) 49 { 50 int i; 51 52 r[alen] = big_mul_set_vec(r, a, alen, b[0]); 53 for (i = 1; i < blen; ++i) 54 r[alen + i] = big_mul_add_vec(r + i, a, alen, b[i]); 55 } 56