| /* |
| * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS). |
| * |
| * 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" |
| |
| func ff_ssd_int8_vs_int16_rvv, zve32x |
| vsetvli t0, zero, e32, m8, ta, ma |
| vmv.v.x v24, zero |
| 1: |
| vsetvli t0, a2, e8, m2, tu, ma |
| vle16.v v8, (a1) |
| sub a2, a2, t0 |
| vle8.v v0, (a0) |
| vwsub.wv v16, v8, v0 |
| vsetvli zero, zero, e16, m4, tu, ma |
| add a0, a0, t0 |
| vwmacc.vv v24, v16, v16 |
| sh1add a1, t0, a1 |
| bnez a2, 1b |
| vsetvli zero, zero, e32, m8, ta, ma |
| vmv.s.x v0, zero |
| vredsum.vs v0, v24, v0 |
| vmv.x.s a0, v0 |
| |
| ret |
| endfunc |
