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64 lines
1.5 KiB
64 lines
1.5 KiB
4 months ago
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/*
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* Data definition for sinf, cosf and sincosf.
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*
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* Copyright (c) 2018-2019, Arm Limited.
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* SPDX-License-Identifier: MIT
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*/
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#include <stdint.h>
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#include <math.h>
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#include "math_config.h"
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#include "sincosf.h"
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/* The constants and polynomials for sine and cosine. The 2nd entry
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computes -cos (x) rather than cos (x) to get negation for free. */
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const sincos_t __sincosf_table[2] =
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{
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{
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{ 1.0, -1.0, -1.0, 1.0 },
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#if TOINT_INTRINSICS
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0x1.45F306DC9C883p-1,
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#else
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0x1.45F306DC9C883p+23,
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#endif
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0x1.921FB54442D18p0,
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0x1p0,
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-0x1.ffffffd0c621cp-2,
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0x1.55553e1068f19p-5,
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-0x1.6c087e89a359dp-10,
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0x1.99343027bf8c3p-16,
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-0x1.555545995a603p-3,
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0x1.1107605230bc4p-7,
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-0x1.994eb3774cf24p-13
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},
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{
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{ 1.0, -1.0, -1.0, 1.0 },
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#if TOINT_INTRINSICS
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0x1.45F306DC9C883p-1,
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#else
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0x1.45F306DC9C883p+23,
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#endif
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0x1.921FB54442D18p0,
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-0x1p0,
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0x1.ffffffd0c621cp-2,
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-0x1.55553e1068f19p-5,
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0x1.6c087e89a359dp-10,
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-0x1.99343027bf8c3p-16,
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-0x1.555545995a603p-3,
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0x1.1107605230bc4p-7,
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-0x1.994eb3774cf24p-13
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}
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};
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/* Table with 4/PI to 192 bit precision. To avoid unaligned accesses
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only 8 new bits are added per entry, making the table 4 times larger. */
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const uint32_t __inv_pio4[24] =
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{
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0xa2, 0xa2f9, 0xa2f983, 0xa2f9836e,
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0xf9836e4e, 0x836e4e44, 0x6e4e4415, 0x4e441529,
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0x441529fc, 0x1529fc27, 0x29fc2757, 0xfc2757d1,
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0x2757d1f5, 0x57d1f534, 0xd1f534dd, 0xf534ddc0,
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0x34ddc0db, 0xddc0db62, 0xc0db6295, 0xdb629599,
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0x6295993c, 0x95993c43, 0x993c4390, 0x3c439041
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};
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