/* Data definitions for sinf, cosf and sincosf. Copyright (c) 2018 Arm Ltd. All rights reserved. SPDX-License-Identifier: BSD-3-Clause Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 3. The name of the company may not be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY ARM LTD ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ARM LTD BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "fdlibm.h" #if !__OBSOLETE_MATH #include #include #include "math_config.h" #include "sincosf.h" /* The constants and polynomials for sine and cosine. The 2nd entry computes -cos (x) rather than cos (x) to get negation for free. */ const sincos_t __sincosf_table[2] = { { { 1.0, -1.0, -1.0, 1.0 }, #if TOINT_INTRINSICS 0x1.45F306DC9C883p-1, #else 0x1.45F306DC9C883p+23, #endif 0x1.921FB54442D18p0, 0x1p0, -0x1.ffffffd0c621cp-2, 0x1.55553e1068f19p-5, -0x1.6c087e89a359dp-10, 0x1.99343027bf8c3p-16, -0x1.555545995a603p-3, 0x1.1107605230bc4p-7, -0x1.994eb3774cf24p-13 }, { { 1.0, -1.0, -1.0, 1.0 }, #if TOINT_INTRINSICS 0x1.45F306DC9C883p-1, #else 0x1.45F306DC9C883p+23, #endif 0x1.921FB54442D18p0, -0x1p0, 0x1.ffffffd0c621cp-2, -0x1.55553e1068f19p-5, 0x1.6c087e89a359dp-10, -0x1.99343027bf8c3p-16, -0x1.555545995a603p-3, 0x1.1107605230bc4p-7, -0x1.994eb3774cf24p-13 } }; /* Table with 4/PI to 192 bit precision. To avoid unaligned accesses only 8 new bits are added per entry, making the table 4 times larger. */ const uint32_t __inv_pio4[24] = { 0xa2, 0xa2f9, 0xa2f983, 0xa2f9836e, 0xf9836e4e, 0x836e4e44, 0x6e4e4415, 0x4e441529, 0x441529fc, 0x1529fc27, 0x29fc2757, 0xfc2757d1, 0x2757d1f5, 0x57d1f534, 0xd1f534dd, 0xf534ddc0, 0x34ddc0db, 0xddc0db62, 0xc0db6295, 0xdb629599, 0x6295993c, 0x95993c43, 0x993c4390, 0x3c439041 }; #endif