Spaces:
Runtime error
Runtime error
| /* | |
| * Copyright (c) 2008 Mans Rullgard <mans@mansr.com> | |
| * | |
| * 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_vorbis_inverse_coupling_neon, =1 | |
| movi v20.4s, #1<<7, lsl #24 | |
| subs x2, x2, #4 | |
| mov x3, x0 | |
| mov x4, x1 | |
| b.eq 3f | |
| ld1 {v7.4s}, [x1], #16 | |
| ld1 {v6.4s}, [x0], #16 | |
| cmle v4.4s, v7.4s, #0 | |
| and v5.16b, v6.16b, v20.16b | |
| eor v7.16b, v7.16b, v5.16b | |
| and v2.16b, v7.16b, v4.16b | |
| bic v3.16b, v7.16b, v4.16b | |
| fadd v7.4s, v6.4s, v2.4s | |
| fsub v6.4s, v6.4s, v3.4s | |
| 1: ld1 {v1.4s}, [x1], #16 | |
| ld1 {v0.4s}, [x0], #16 | |
| cmle v4.4s, v1.4s, #0 | |
| and v5.16b, v0.16b, v20.16b | |
| eor v1.16b, v1.16b, v5.16b | |
| st1 {v7.4s}, [x3], #16 | |
| st1 {v6.4s}, [x4], #16 | |
| and v2.16b, v1.16b, v4.16b | |
| bic v3.16b, v1.16b, v4.16b | |
| fadd v1.4s, v0.4s, v2.4s | |
| fsub v0.4s, v0.4s, v3.4s | |
| subs x2, x2, #8 | |
| b.le 2f | |
| ld1 {v7.4s}, [x1], #16 | |
| ld1 {v6.4s}, [x0], #16 | |
| cmle v4.4s, v7.4s, #0 | |
| and v5.16b, v6.16b, v20.16b | |
| eor v7.16b, v7.16b, v5.16b | |
| st1 {v1.4s}, [x3], #16 | |
| st1 {v0.4s}, [x4], #16 | |
| and v2.16b, v7.16b, v4.16b | |
| bic v3.16b, v7.16b, v4.16b | |
| fadd v7.4s, v6.4s, v2.4s | |
| fsub v6.4s, v6.4s, v3.4s | |
| b 1b | |
| 2: st1 {v1.4s}, [x3], #16 | |
| st1 {v0.4s}, [x4], #16 | |
| b.lt ret | |
| 3: ld1 {v1.4s}, [x1] | |
| ld1 {v0.4s}, [x0] | |
| cmle v4.4s, v1.4s, #0 | |
| and v5.16b, v0.16b, v20.16b | |
| eor v1.16b, v1.16b, v5.16b | |
| and v2.16b, v1.16b, v4.16b | |
| bic v3.16b, v1.16b, v4.16b | |
| fadd v1.4s, v0.4s, v2.4s | |
| fsub v0.4s, v0.4s, v3.4s | |
| st1 {v1.4s}, [x0], #16 | |
| st1 {v0.4s}, [x1], #16 | |
| ret: | |
| ret | |
| endfunc | |