mpir/mpn/x86_64w/k8/and_n.asm

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; PROLOGUE(mpn_and_n)
2012-11-25 17:13:44 -05:00
; 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.
;
; void mpn_and_n(mp_ptr, mp_srcptr, mp_srcptr, mp_size_t)
; rdi rsi rdx rcx
; rcx rdx r8 r9
%include "yasm_mac.inc"
CPU Athlon64
BITS 64
%define T3 r10
%define T4 r11
LEAF_PROC mpn_and_n
mov rax, r9
and rax, 3
shr r9, 2
jz .2
xalign 8
.1: mov r10, [rdx]
mov r11, [rdx+8]
lea rdx, [rdx+32]
and r10, [r8]
and 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]
and T3, [r8-16]
and 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]
and r10, [r8]
mov [rcx], r10
dec rax
jz .3
mov r10, [rdx+8]
and r10, [r8+8]
mov [rcx+8], r10
dec rax
jz .3
mov r10, [rdx+16]
and r10, [r8+16]
mov [rcx+16], r10
.3: ret
end