;  AMD64 mpn_com_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:
;
;  r9[r9] = rax[r9] + 2 * rax[r9]
;
;  void __gmpn_com_n(
;     mp_ptr rp,          rcx
;     mp_srcptr xp,       rdx
;     mp_size_t  n,        r8
;  )
;
;  This is an SEH leaf function (no unwind support needed)

%include "..\yasm_mac.inc"

    BITS 64
    LEAF_PROC mpn_com_n
    movsxd  rax, r8d
	sub     rax, 4
	jc      .2
	
	alignb  8, nop
.1: mov     r8, [rdx+rax*8+24]
	mov     r9, [rdx+rax*8+16]
	not     r8
	not     r9
	mov     [rcx+rax*8+24], r8
	mov     [rcx+rax*8+16], r9
	mov     r8, [rdx+rax*8+8]
	mov     r9, [rdx+rax*8]
	not     r8
	not     r9
	mov     [rcx+rax*8+8], r8
	mov     [rcx+rax*8], r9
	sub     rax, 4
	jae     .1

.2: add     rax, 4
	jz      .3

; Could still have potential cache-bank conflicts in this tail part

	mov     r8, [rdx+rax*8-8]
	not     r8
	mov     [rcx+rax*8-8], r8
	dec     rax
	jz      .3
	mov     r8, [rdx+rax*8-8]
	not     r8
	mov     [rcx+rax*8-8], r8
	dec     rax
	jz      .3
	mov     r8, [rdx+rax*8-8]
	not     r8
	mov     [rcx+rax*8-8], r8

.3: ret

    end