mpir/mpn/x86_64w/amd64/ior_n.asm

85 lines
2.1 KiB
NASM

; AMD64 mpn_ior_n
; Version 1.0.4
;
; Copyright 2008 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.
; Calling interface:
;
; mp_limb_t __gmpn_<op>_n( <op> = ior_n
; mp_ptr dst, rcx
; mp_srcptr src1, rdx
; mp_srcptr src2, r8
; mp_size_t len r9
; )
%include "..\yasm_mac.inc"
BITS 64
%define T3 r10
%define T4 r11
LEAF_PROC mpn_ior_n
movsxd r9, r9d
mov rax, r9
and rax, 3
shr r9, 2
jz .2
alignb 8, nop
.1: mov r10, [rdx]
mov r11, [rdx+8]
lea rdx, [rdx+32]
or r10, [r8]
or r11, [r8+8]
lea r8, [r8+32]
mov [rcx], r10
mov [rcx+8], r11
lea rcx, [rcx+32]
mov T3, [rdx-16]
mov T4, [rdx-8]
or T3, [r8-16]
or T4, [r8-8]
mov [rcx-16], T3
dec r9
mov [rcx-8], T4
jnz .1
.2: inc rax
dec rax
jz .3
mov r10, [rdx]
or r10, [r8]
mov [rcx], r10
dec rax
jz .3
mov r10, [rdx+8]
or r10, [r8+8]
mov [rcx+8], r10
dec rax
jz .3
mov r10, [rdx+16]
or r10, [r8+16]
mov [rcx+16], r10
.3: ret
end