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| 1 | +/*! |
| 2 | + * \copy |
| 3 | + * Copyright (c) 2013, Cisco Systems |
| 4 | + * All rights reserved. |
| 5 | + * |
| 6 | + * Redistribution and use in source and binary forms, with or without |
| 7 | + * modification, are permitted provided that the following conditions |
| 8 | + * are met: |
| 9 | + * |
| 10 | + * * Redistributions of source code must retain the above copyright |
| 11 | + * notice, this list of conditions and the following disclaimer. |
| 12 | + * |
| 13 | + * * Redistributions in binary form must reproduce the above copyright |
| 14 | + * notice, this list of conditions and the following disclaimer in |
| 15 | + * the documentation and/or other materials provided with the |
| 16 | + * distribution. |
| 17 | + * |
| 18 | + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 | + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 | + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| 21 | + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| 22 | + * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 23 | + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| 24 | + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 25 | + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
| 26 | + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 27 | + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
| 28 | + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 29 | + * POSSIBILITY OF SUCH DAMAGE. |
| 30 | + * |
| 31 | + */ |
| 32 | + |
| 33 | +#ifdef HAVE_NEON_AARCH64 |
| 34 | +.text |
| 35 | +#include "arm_arch64_common_macro.S" |
| 36 | + |
| 37 | +WELS_ASM_AARCH64_FUNC_BEGIN WelsProcessingSampleSad8x8_AArch64_neon |
| 38 | + ld1 {v0.8b}, [x0], x1 |
| 39 | + ld1 {v1.8b}, [x2], x3 |
| 40 | + uabdl v2.8h, v0.8b, v1.8b |
| 41 | +.rept 7 |
| 42 | + ld1 {v0.8b}, [x0], x1 |
| 43 | + ld1 {v1.8b}, [x2], x3 |
| 44 | + uabal v2.8h, v0.8b, v1.8b |
| 45 | +.endr |
| 46 | + saddlv s2, v2.8h |
| 47 | + fmov w0, s2 |
| 48 | +WELS_ASM_AARCH64_FUNC_END |
| 49 | + |
| 50 | +#endif |