1 /* 2 * Data definition for sinf, cosf and sincosf. 3 * 4 * Copyright (c) 2018, Arm Limited. 5 * SPDX-License-Identifier: MIT 6 */ 7 8 #if !WANT_SINGLEPREC 9 10 #include <stdint.h> 11 #include <math.h> 12 #include "math_config.h" 13 #include "sincosf.h" 14 15 /* The constants and polynomials for sine and cosine. The 2nd entry 16 computes -cos (x) rather than cos (x) to get negation for free. */ 17 const sincos_t __sincosf_table[2] = 18 { 19 { 20 { 1.0, -1.0, -1.0, 1.0 }, 21 #if TOINT_INTRINSICS 22 0x1.45F306DC9C883p-1, 23 #else 24 0x1.45F306DC9C883p+23, 25 #endif 26 0x1.921FB54442D18p0, 27 0x1p0, 28 -0x1.ffffffd0c621cp-2, 29 0x1.55553e1068f19p-5, 30 -0x1.6c087e89a359dp-10, 31 0x1.99343027bf8c3p-16, 32 -0x1.555545995a603p-3, 33 0x1.1107605230bc4p-7, 34 -0x1.994eb3774cf24p-13 35 }, 36 { 37 { 1.0, -1.0, -1.0, 1.0 }, 38 #if TOINT_INTRINSICS 39 0x1.45F306DC9C883p-1, 40 #else 41 0x1.45F306DC9C883p+23, 42 #endif 43 0x1.921FB54442D18p0, 44 -0x1p0, 45 0x1.ffffffd0c621cp-2, 46 -0x1.55553e1068f19p-5, 47 0x1.6c087e89a359dp-10, 48 -0x1.99343027bf8c3p-16, 49 -0x1.555545995a603p-3, 50 0x1.1107605230bc4p-7, 51 -0x1.994eb3774cf24p-13 52 } 53 }; 54 55 /* Table with 4/PI to 192 bit precision. To avoid unaligned accesses 56 only 8 new bits are added per entry, making the table 4 times larger. */ 57 const uint32_t __inv_pio4[24] = 58 { 59 0xa2, 0xa2f9, 0xa2f983, 0xa2f9836e, 60 0xf9836e4e, 0x836e4e44, 0x6e4e4415, 0x4e441529, 61 0x441529fc, 0x1529fc27, 0x29fc2757, 0xfc2757d1, 62 0x2757d1f5, 0x57d1f534, 0xd1f534dd, 0xf534ddc0, 63 0x34ddc0db, 0xddc0db62, 0xc0db6295, 0xdb629599, 64 0x6295993c, 0x95993c43, 0x993c4390, 0x3c439041 65 }; 66 67 #endif 68