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#include "arm_arch64_common_macro.S" 35//int32_t WelsProcessingSampleSad8x8_AArch64_neon (uint8_t*, int32_t, uint8_t*, int32_t); 36WELS_ASM_AARCH64_FUNC_BEGIN WelsProcessingSampleSad8x8_AArch64_neon 37 SIGN_EXTENSION x1, w1 38 SIGN_EXTENSION x3, w3 39 ld1 {v0.8b}, [x0], x1 40 ld1 {v1.8b}, [x2], x3 41 uabdl v2.8h, v0.8b, v1.8b 42.rept 7 43 ld1 {v0.8b}, [x0], x1 44 ld1 {v1.8b}, [x2], x3 45 uabal v2.8h, v0.8b, v1.8b 46.endr 47 saddlv s2, v2.8h 48 fmov w0, s2 49WELS_ASM_AARCH64_FUNC_END 50 51#endif 52