mpir/mpn/x86_64w/nehalem/xor_n.asm

79 lines
2.0 KiB
NASM
Raw Normal View History

2009-12-03 12:32:55 -05:00
; mpn_xor_n
; Copyright 2009 Jason Moxham
; 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 verdxon 2.1 of the License, or (at
; your option) any later verdxon.
; 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_xor_n(mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
; rcx rdx r8 r9
; rdi rsi rdx rcx
%include '..\yasm_mac.inc'
CPU nehalem
BITS 64
LEAF_PROC mpn_xor_n
movsxd r9, r9d
mov r10, 3
lea rdx, [rdx+r9*8-24]
lea r8, [r8+r9*8-24]
lea rcx, [rcx+r9*8-24]
sub r10, r9
jnc .2
xalign 16
.1: movdqu xmm0, [r8+r10*8]
2009-12-03 12:32:55 -05:00
movdqu xmm1, [r8+r10*8+16]
movdqu xmm3, [rdx+r10*8+16]
movdqu xmm2, [rdx+r10*8]
pxor xmm0, xmm2
movdqu [rcx+r10*8], xmm0
pxor xmm1, xmm3
add r10, 4
movdqu [rcx+r10*8+16-32], xmm1
jnc .1
.2: cmp r10, 2
2009-12-03 12:32:55 -05:00
ja .4
je .6
jp .5
.3: movdqu xmm0, [r8+r10*8]
2009-12-03 12:32:55 -05:00
mov rax, [r8+r10*8+16]
mov r9, [rdx+r10*8+16]
movdqu xmm2, [rdx+r10*8]
pxor xmm0, xmm2
movdqu [rcx+r10*8], xmm0
xor rax, r9
mov [rcx+r10*8+16], rax
.4: ret
.5: movdqu xmm0, [r8+r10*8]
2009-12-03 12:32:55 -05:00
movdqu xmm2, [rdx+r10*8]
pxor xmm0, xmm2
movdqu [rcx+r10*8], xmm0
ret
.6: mov rax, [r8+r10*8]
2009-12-03 12:32:55 -05:00
mov r9, [rdx+r10*8]
xor rax, r9
mov [rcx+r10*8], rax
ret
end