mpir/mpn/x86_64w/core2/copyd.asm

76 lines
1.9 KiB
NASM

; Copyright 2009 Jason Moxham
;
; Windows Conversion Copyright 2008 Brian Gladman
;
; This file is part of the MPIR Library.
; The MPIR Library is free software; you can redistribute it and/or modify
; it under the terms of the GNU Lesser General Public License as published
; by the Free Software Foundation; either version 2.1 of the License, or (at
; your option) any later version.
; The MPIR Library is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
; License for more details.
; You should have received a copy of the GNU Lesser General Public License
; along with the MPIR Library; see the file COPYING.LIB. If not, write
; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
; Boston, MA 02110-1301, USA.
;
; void mpn_copyd(mp_ptr, mp_ptr, mp_size_t)
; rdi rsi rdx
; rcx rdx r8
%include "yasm_mac.inc"
CPU Core2
BITS 64
LEAF_PROC mpn_copyd
lea rdx, [rdx+r8*8-8]
lea rcx, [rcx+r8*8-8]
sub r8, 4
jl .2
xalign 16
.1: mov rax, [rdx]
mov r9, [rdx-8]
mov r10, [rdx-16]
mov r11, [rdx-24]
mov [rcx], rax
mov [rcx-8], r9
lea rcx, [rcx-32]
sub r8, 4
mov [rcx+16], r10
mov [rcx+8], r11
lea rdx, [rdx-32]
jns .1
.2: add r8, 2
jz .5
jns .6
jp .4
.3: ret
xalign 16
.4: mov rax, [rdx]
mov [rcx], rax
ret
xalign 16
.5: mov rax, [rdx]
mov r9, [rdx-8]
mov [rcx], rax
mov [rcx-8], r9
ret
xalign 16
.6: mov rax, [rdx]
mov r9, [rdx-8]
mov r10, [rdx-16]
mov [rcx], rax
mov [rcx-8], r9
mov [rcx-16], r10
ret
end