kolibrios/contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/aarch64/videodsp.S
Sergey Semyonov (Serge) a4b787f4b8 ffmpeg-2.8.5
git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60
2016-02-05 22:08:02 +00:00

29 lines
1.0 KiB
ArmAsm

/*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/aarch64/asm.S"
function ff_prefetch_aarch64, export=1
subs w2, w2, #2
prfm pldl1strm, [x0]
prfm pldl1strm, [x0, x1]
add x0, x0, x1, lsl #1
b.gt X(ff_prefetch_aarch64)
ret
endfunc