| dnl AMD64 mpn_copyd optimised for AMD bobcat. |
| |
| dnl Copyright 2003, 2005, 2007, 2011, 2012 Free Software Foundation, Inc. |
| |
| dnl This file is part of the GNU MP Library. |
| dnl |
| dnl The GNU MP Library is free software; you can redistribute it and/or modify |
| dnl it under the terms of either: |
| dnl |
| dnl * the GNU Lesser General Public License as published by the Free |
| dnl Software Foundation; either version 3 of the License, or (at your |
| dnl option) any later version. |
| dnl |
| dnl or |
| dnl |
| dnl * the GNU General Public License as published by the Free Software |
| dnl Foundation; either version 2 of the License, or (at your option) any |
| dnl later version. |
| dnl |
| dnl or both in parallel, as here. |
| dnl |
| dnl The GNU MP Library is distributed in the hope that it will be useful, but |
| dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| dnl for more details. |
| dnl |
| dnl You should have received copies of the GNU General Public License and the |
| dnl GNU Lesser General Public License along with the GNU MP Library. If not, |
| dnl see https://www.gnu.org/licenses/. |
| |
| include(`../config.m4') |
| |
| C cycles/limb |
| C AMD K8,K9 1 |
| C AMD K10 1-2 (alignment fluctuations) |
| C AMD bd1 ? |
| C AMD bobcat 1.5 |
| C Intel P4 2.8 |
| C Intel core2 1 |
| C Intel NHM 1-1.25 |
| C Intel SBR 1 |
| C Intel atom 2.87 |
| C VIA nano 2 |
| |
| C INPUT PARAMETERS |
| C rp rdi |
| C up rsi |
| C n rdx |
| |
| define(`rp',`%rdi') |
| define(`up',`%rsi') |
| define(`n',`%rdx') |
| |
| ABI_SUPPORT(DOS64) |
| ABI_SUPPORT(STD64) |
| |
| ASM_START() |
| TEXT |
| ALIGN(16) |
| PROLOGUE(mpn_copyd) |
| FUNC_ENTRY(3) |
| sub $4, n |
| jl L(end) |
| ALIGN(16) |
| L(top): mov 24(up,n,8), %r8 |
| mov %r8, 24(rp,n,8) |
| mov 16(up,n,8), %r8 |
| mov %r8, 16(rp,n,8) |
| mov 8(up,n,8), %r8 |
| mov %r8, 8(rp,n,8) |
| mov (up,n,8), %r8 |
| mov %r8, (rp,n,8) |
| L(ent): sub $4, n |
| jge L(top) |
| |
| L(end): cmp $-4, R32(n) |
| jz L(ret) |
| mov 24(up,n,8), %r8 |
| mov %r8, 24(rp,n,8) |
| cmp $-3, R32(n) |
| jz L(ret) |
| mov 16(up,n,8), %r8 |
| mov %r8, 16(rp,n,8) |
| cmp $-2, R32(n) |
| jz L(ret) |
| mov 8(up,n,8), %r8 |
| mov %r8, 8(rp,n,8) |
| |
| L(ret): FUNC_EXIT() |
| ret |
| EPILOGUE() |
