78 lines
1.9 KiB
NASM
78 lines
1.9 KiB
NASM
dnl SPARC v9 mpn_copyd -- Copy a limb vector, decrementing.
|
|
|
|
dnl Copyright 1999, 2000, 2001, 2002, 2003 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 2.1 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; see the file COPYING.LIB. If not, write
|
|
dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
dnl Boston, MA 02110-1301, USA.
|
|
|
|
include(`../config.m4')
|
|
|
|
C cycles/limb
|
|
C UltraSPARC 1&2: 2
|
|
C UltraSPARC 3: 2.5
|
|
|
|
C INPUT PARAMETERS
|
|
C rptr %o0
|
|
C sptr %o1
|
|
C n %o2
|
|
|
|
ASM_START()
|
|
REGISTER(%g2,#scratch)
|
|
REGISTER(%g3,#scratch)
|
|
PROLOGUE(mpn_copyd)
|
|
sllx %o2,3,%g1
|
|
add %g1,%o0,%o0
|
|
add %g1,%o1,%o1
|
|
addcc %o2,-8,%o2
|
|
bl,pt %icc,L(end01234567)
|
|
nop
|
|
L(loop1):
|
|
ldx [%o1-8],%g1
|
|
ldx [%o1-16],%g2
|
|
ldx [%o1-24],%g3
|
|
ldx [%o1-32],%g4
|
|
ldx [%o1-40],%g5
|
|
ldx [%o1-48],%o3
|
|
ldx [%o1-56],%o4
|
|
ldx [%o1-64],%o5
|
|
add %o1,-64,%o1
|
|
stx %g1,[%o0-8]
|
|
stx %g2,[%o0-16]
|
|
stx %g3,[%o0-24]
|
|
stx %g4,[%o0-32]
|
|
stx %g5,[%o0-40]
|
|
stx %o3,[%o0-48]
|
|
stx %o4,[%o0-56]
|
|
stx %o5,[%o0-64]
|
|
addcc %o2,-8,%o2
|
|
bge,pt %icc,L(loop1)
|
|
add %o0,-64,%o0
|
|
L(end01234567):
|
|
addcc %o2,8,%o2
|
|
bz,pn %icc,L(end)
|
|
nop
|
|
L(loop2):
|
|
ldx [%o1-8],%g1
|
|
add %o1,-8,%o1
|
|
addcc %o2,-1,%o2
|
|
stx %g1,[%o0-8]
|
|
bg,pt %icc,L(loop2)
|
|
add %o0,-8,%o0
|
|
L(end): retl
|
|
nop
|
|
EPILOGUE(mpn_copyd)
|