1 /* 2 # SPDX-FileCopyrightText: Copyright 2010-2022 Arm Limited and/or its affiliates <open-source-office@arm.com> 3 * 4 * SPDX-License-Identifier: Apache-2.0 5 * 6 * Licensed under the Apache License, Version 2.0 (the License); you may 7 * not use this file except in compliance with the License. 8 * You may obtain a copy of the License at 9 * 10 * www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an AS IS BASIS, WITHOUT 14 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 #pragma once 20 21 // Lookup table for exp(x), where x uniform distributed between [-10.0 , 0.0]. 22 const int16_t softmax_s16_exp_lut[513] = { 23 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 24 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 25 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 26 4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 27 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 28 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 29 10, 10, 10, 10, 11, 11, 11, 11, 11, 12, 12, 12, 12, 13, 13, 13, 30 13, 14, 14, 14, 14, 15, 15, 15, 16, 16, 16, 17, 17, 17, 18, 18, 31 18, 19, 19, 19, 20, 20, 21, 21, 21, 22, 22, 23, 23, 24, 24, 25, 32 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 32, 32, 33, 34, 33 34, 35, 36, 36, 37, 37, 38, 39, 40, 40, 42, 42, 43, 44, 45, 45, 34 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 59, 60, 60, 62, 35 63, 65, 65, 67, 68, 69, 71, 73, 74, 75, 77, 78, 80, 81, 83, 85, 36 86, 88, 90, 92, 93, 95, 97, 99, 101, 103, 105, 107, 109, 112, 114, 116, 37 118, 121, 123, 126, 128, 131, 133, 135, 139, 141, 144, 147, 149, 152, 155, 158, 38 162, 165, 168, 171, 174, 178, 181, 185, 189, 192, 196, 200, 204, 208, 212, 217, 39 221, 225, 230, 234, 239, 243, 248, 253, 258, 263, 268, 273, 279, 284, 290, 296, 40 302, 308, 314, 320, 327, 333, 340, 346, 353, 360, 366, 374, 381, 389, 397, 404, 41 413, 421, 429, 437, 446, 455, 464, 473, 482, 492, 501, 511, 522, 532, 543, 553, 42 564, 575, 586, 598, 610, 622, 634, 646, 659, 672, 685, 699, 713, 727, 741, 756, 43 771, 786, 801, 817, 833, 850, 866, 884, 901, 919, 937, 955, 974, 993, 1013, 1033, 44 1053, 1074, 1095, 1117, 1139, 1161, 1184, 1207, 1232, 1256, 1281, 1306, 1332, 1358, 1385, 1412, 45 1440, 1468, 1497, 1527, 1557, 1587, 1619, 1651, 1683, 1716, 1750, 1785, 1820, 1856, 1892, 1930, 46 1968, 2006, 2046, 2087, 2128, 2170, 2212, 2256, 2300, 2346, 2392, 2439, 2488, 2537, 2587, 2638, 47 2690, 2743, 2796, 2852, 2908, 2966, 3024, 3084, 3145, 3207, 3270, 3334, 3400, 3467, 3535, 3605, 48 3677, 3749, 3822, 3898, 3975, 4053, 4133, 4214, 4297, 4383, 4469, 4557, 4647, 4739, 4833, 4927, 49 5024, 5124, 5225, 5328, 5433, 5541, 5649, 5761, 5875, 5991, 6109, 6230, 6352, 6477, 6605, 6736, 50 6868, 7004, 7141, 7282, 7427, 7572, 7722, 7874, 8030, 8188, 8350, 8514, 8683, 8854, 9028, 9206, 51 9387, 9572, 9762, 9954, 10151, 10351, 10555, 10763, 10976, 11191, 11412, 11637, 11867, 12102, 12341, 12583, 52 12831, 13085, 13342, 13606, 13874, 14148, 14427, 14711, 15002, 15297, 15599, 15907, 16221, 16541, 16867, 17199, 53 17539, 17884, 18237, 18597, 18964, 19338, 19719, 20108, 20505, 20909, 21322, 21742, 22171, 22608, 23054, 23509, 54 23973, 24445, 24928, 25419, 25921, 26432, 26953, 27485, 28027, 28580, 29143, 29718, 30304, 30902, 31512, 32133, 55 32767}; 56
