1dnl AMD64 mpn_copyi -- copy limb vector, incrementing. 2 3dnl Copyright 2003, 2005, 2007 Free Software Foundation, Inc. 4 5dnl This file is part of the GNU MP Library. 6 7dnl The GNU MP Library is free software; you can redistribute it and/or modify 8dnl it under the terms of the GNU Lesser General Public License as published 9dnl by the Free Software Foundation; either version 3 of the License, or (at 10dnl your option) any later version. 11 12dnl The GNU MP Library is distributed in the hope that it will be useful, but 13dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15dnl License for more details. 16 17dnl You should have received a copy of the GNU Lesser General Public License 18dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. 19 20include(`../config.m4') 21 22 23C cycles/limb 24C K8,K9: 1 25C K10: 1 26C P4: 2.8 27C P6-15: 1.2 28 29 30C INPUT PARAMETERS 31C rp rdi 32C up rsi 33C n rdx 34 35define(`rp',`%rdi') 36define(`up',`%rsi') 37define(`n',`%rdx') 38 39ASM_START() 40 TEXT 41 ALIGN(16) 42PROLOGUE(mpn_copyi) 43 leaq -8(rp), rp 44 subq $4, n 45 jc L(end) 46 ALIGN(16) 47L(oop): movq (up), %r8 48 movq 8(up), %r9 49 leaq 32(rp), rp 50 movq 16(up), %r10 51 movq 24(up), %r11 52 leaq 32(up), up 53 movq %r8, -24(rp) 54 movq %r9, -16(rp) 55 subq $4, n 56 movq %r10, -8(rp) 57 movq %r11, (rp) 58 jnc L(oop) 59 60L(end): shrl %edx C edx = lowpart(n) 61 jnc 1f 62 movq (up), %r8 63 movq %r8, 8(rp) 64 leaq 8(rp), rp 65 leaq 8(up), up 661: shrl %edx C edx = lowpart(n) 67 jnc 1f 68 movq (up), %r8 69 movq 8(up), %r9 70 movq %r8, 8(rp) 71 movq %r9, 16(rp) 721: ret 73EPILOGUE() 74