| 1 | /** @file
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| 2 | * IPRT / No-CRT - math.h, x86 inlined functions.
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| 3 | */
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| 4 |
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| 5 | /*
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| 6 | * Copyright (C) 2006-2024 Oracle and/or its affiliates.
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| 7 | *
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| 8 | * This file is part of VirtualBox base platform packages, as
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| 9 | * available from https://www.virtualbox.org.
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| 10 | *
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| 11 | * This program is free software; you can redistribute it and/or
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| 12 | * modify it under the terms of the GNU General Public License
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| 13 | * as published by the Free Software Foundation, in version 3 of the
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| 14 | * License.
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| 15 | *
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| 16 | * This program is distributed in the hope that it will be useful, but
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| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
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| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 19 | * General Public License for more details.
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| 20 | *
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| 21 | * You should have received a copy of the GNU General Public License
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| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
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| 23 | *
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| 24 | * The contents of this file may alternatively be used under the terms
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| 25 | * of the Common Development and Distribution License Version 1.0
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| 26 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
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| 27 | * in the VirtualBox distribution, in which case the provisions of the
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| 28 | * CDDL are applicable instead of those of the GPL.
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| 29 | *
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| 30 | * You may elect to license modified versions of this file under the
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| 31 | * terms and conditions of either the GPL or the CDDL or both.
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| 32 | *
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| 33 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
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| 34 | */
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| 35 |
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| 36 | #ifndef IPRT_INCLUDED_nocrt_x86_math_h
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| 37 | #define IPRT_INCLUDED_nocrt_x86_math_h
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| 38 | #ifndef RT_WITHOUT_PRAGMA_ONCE
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| 39 | # pragma once
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| 40 | #endif
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| 41 |
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| 42 | #include <iprt/asm.h>
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| 43 |
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| 44 | #if RT_INLINE_ASM_GNU_STYLE
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| 45 |
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| 46 | DECLINLINE(long double) inline_atan2l(long double lrd1, long double lrd2)
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| 47 | {
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| 48 | long double lrdResult;
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| 49 | __asm__ __volatile__("fpatan"
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| 50 | : "=t" (lrdResult)
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| 51 | : "u" (lrd1),
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| 52 | "0" (lrd2)
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| 53 | : "st(1)");
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| 54 | return lrdResult;
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| 55 | }
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| 56 |
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| 57 | DECLINLINE(long double) inline_rintl(long double lrd)
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| 58 | {
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| 59 | long double lrdResult;
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| 60 | __asm__ __volatile__("frndint"
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| 61 | : "=t" (lrdResult)
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| 62 | : "0" (lrd));
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| 63 | return lrdResult;
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| 64 | }
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| 65 |
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| 66 | DECLINLINE(float) inline_rintf(float rf)
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| 67 | {
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| 68 | return (float)inline_rintl(rf);
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| 69 | }
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| 70 |
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| 71 | DECLINLINE(double) inline_rint(double rd)
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| 72 | {
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| 73 | return (double)inline_rintl(rd);
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| 74 | }
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| 75 |
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| 76 | DECLINLINE(long double) inline_sqrtl(long double lrd)
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| 77 | {
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| 78 | long double lrdResult;
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| 79 | __asm__ __volatile__("fsqrt"
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| 80 | : "=t" (lrdResult)
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| 81 | : "0" (lrd));
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| 82 | return lrdResult;
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| 83 | }
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| 84 |
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| 85 | DECLINLINE(float) inline_sqrtf(float rf)
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| 86 | {
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| 87 | return (float)inline_sqrtl(rf);
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| 88 | }
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| 89 |
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| 90 | DECLINLINE(double) inline_sqrt(double rd)
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| 91 | {
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| 92 | return (double)inline_sqrtl(rd);
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| 93 | }
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| 94 |
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| 95 |
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| 96 | # undef atan2l
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| 97 | # define atan2l(lrd1, lrd2) inline_atan2l(lrd1, lrd2)
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| 98 | # undef rint
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| 99 | # define rint(rd) inline_rint(rd)
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| 100 | # undef rintf
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| 101 | # define rintf(rf) inline_rintf(rf)
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| 102 | # undef rintl
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| 103 | # define rintl(lrd) inline_rintl(lrd)
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| 104 | # undef sqrt
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| 105 | # define sqrt(rd) inline_sqrt(rd)
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| 106 | # undef sqrtf
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| 107 | # define sqrtf(rf) inline_sqrtf(rf)
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| 108 | # undef sqrtl
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| 109 | # define sqrtl(lrd) inline_sqrtl(lrd)
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| 110 |
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| 111 | #endif /* RT_INLINE_ASM_GNU_STYLE */
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| 112 |
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| 113 | #endif /* !IPRT_INCLUDED_nocrt_x86_math_h */
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| 114 |
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