1/* Add two limb vectors of the same length > 0 and store sum in a third 2 limb vector. 3 Copyright (C) 2004 Free Software Foundation, Inc. 4 This file is part of the GNU MP Library. 5 6 The GNU MP Library is free software; you can redistribute it and/or modify 7 it under the terms of the GNU Lesser General Public License as published by 8 the Free Software Foundation; either version 2.1 of the License, or (at your 9 option) any later version. 10 11 The GNU MP Library is distributed in the hope that it will be useful, but 12 WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 13 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 14 License for more details. 15 16 You should have received a copy of the GNU Lesser General Public License 17 along with the GNU MP Library; see the file COPYING.LIB. If not, write to 18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, 19 MA 02111-1307, USA. */ 20 21#include "sysdep.h" 22#include "asm-syntax.h" 23 24 .text 25ENTRY (__mpn_add_n) 26 leaq (%rsi,%rcx,8), %rsi 27 leaq (%rdi,%rcx,8), %rdi 28 leaq (%rdx,%rcx,8), %rdx 29 negq %rcx 30 xorl %eax, %eax # clear cy 31 .p2align 2 32L(loop): 33 movq (%rsi,%rcx,8), %rax 34 movq (%rdx,%rcx,8), %r10 35 adcq %r10, %rax 36 movq %rax, (%rdi,%rcx,8) 37 incq %rcx 38 jne L(loop) 39 movq %rcx, %rax # zero %rax 40 adcq %rax, %rax 41 ret 42END (__mpn_add_n) 43