Le keskiviikkona 24. toukokuuta 2023, 8.28.08 EEST Arnie Chang a écrit : > diff --git a/libavcodec/riscv/h264_mc_chroma.S > b/libavcodec/riscv/h264_mc_chroma.S new file mode 100644 > index 0000000000..9fcd2e34b3 > --- /dev/null > +++ b/libavcodec/riscv/h264_mc_chroma.S > @@ -0,0 +1,307 @@ > +/* > + * Copyright (c) 2023 SiFive, Inc. All rights reserved. > + * > + * 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/riscv/asm.S" > + > +.macro h264_chroma_mc8 type > +func h264_\type\()_chroma_mc8_rvv, zve32x > + csrw vxrm, zero > + slli t2, a5, 3 > + mulw t1, a5, a4
This should probably be mul. > + sh3add a5, a4, t2 > + slli a4, a4, 3 > + sub a5, t1, a5 > + sub a7, a4, t1 > + addi a6, a5, 64 > + sub t0, t2, t1 > + vsetivli t3, 8, e8, m1, ta, mu > + beqz t1, 2f > + blez a3, 8f > + li t4, 0 > + li t2, 0 > + li t5, 1 > + addi a5, t3, 1 > + slli t3, a2, 2 -- 雷米‧德尼-库尔蒙 http://www.remlab.net/ _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
