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dnl AMD64 mpn_com.
dnl Copyright 2004, 2005, 2006 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Lesser General Public License as published
dnl by the Free Software Foundation; either version 3 of the License, or (at
dnl your option) any later version.
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
dnl License for more details.
dnl You should have received a copy of the GNU Lesser General Public License
dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C AMD K8,K9 1.25
C AMD K10 1.25
C Intel P4 2.78
C Intel core2 1.1
C Intel corei 1.5
C Intel atom ?
C VIA nano 2
C INPUT PARAMETERS
define(`rp',`%rdi')
define(`up',`%rsi')
define(`n',`%rdx')
ASM_START()
TEXT
ALIGN(32)
PROLOGUE(mpn_com)
movq (up), %r8
movl R32(%rdx), R32(%rax)
leaq (up,n,8), up
leaq (rp,n,8), rp
negq n
andl $3, R32(%rax)
je L(b00)
cmpl $2, R32(%rax)
jc L(b01)
je L(b10)
L(b11): notq %r8
movq %r8, (rp,n,8)
decq n
jmp L(e11)
L(b10): addq $-2, n
jmp L(e10)
.byte 0x90,0x90,0x90,0x90,0x90,0x90
L(b01): notq %r8
movq %r8, (rp,n,8)
incq n
jz L(ret)
L(oop): movq (up,n,8), %r8
L(b00): movq 8(up,n,8), %r9
notq %r8
notq %r9
movq %r8, (rp,n,8)
movq %r9, 8(rp,n,8)
L(e11): movq 16(up,n,8), %r8
L(e10): movq 24(up,n,8), %r9
notq %r8
notq %r9
movq %r8, 16(rp,n,8)
movq %r9, 24(rp,n,8)
addq $4, n
jnc L(oop)
L(ret): ret
EPILOGUE()
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