| 1 | /** @file
|
|---|
| 2 | * IPRT / No-CRT - x86 & AMD64 fenv.h.
|
|---|
| 3 | */
|
|---|
| 4 |
|
|---|
| 5 | /*
|
|---|
| 6 | * Copyright (C) 2022-2023 Oracle and/or its affiliates.
|
|---|
| 7 | *
|
|---|
| 8 | * This file is part of VirtualBox base platform packages, as
|
|---|
| 9 | * available from https://www.virtualbox.org.
|
|---|
| 10 | *
|
|---|
| 11 | * This program is free software; you can redistribute it and/or
|
|---|
| 12 | * modify it under the terms of the GNU General Public License
|
|---|
| 13 | * as published by the Free Software Foundation, in version 3 of the
|
|---|
| 14 | * License.
|
|---|
| 15 | *
|
|---|
| 16 | * This program is distributed in the hope that it will be useful, but
|
|---|
| 17 | * WITHOUT ANY WARRANTY; without even the implied warranty of
|
|---|
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|---|
| 19 | * General Public License for more details.
|
|---|
| 20 | *
|
|---|
| 21 | * You should have received a copy of the GNU General Public License
|
|---|
| 22 | * along with this program; if not, see <https://www.gnu.org/licenses>.
|
|---|
| 23 | *
|
|---|
| 24 | * The contents of this file may alternatively be used under the terms
|
|---|
| 25 | * of the Common Development and Distribution License Version 1.0
|
|---|
| 26 | * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
|
|---|
| 27 | * in the VirtualBox distribution, in which case the provisions of the
|
|---|
| 28 | * CDDL are applicable instead of those of the GPL.
|
|---|
| 29 | *
|
|---|
| 30 | * You may elect to license modified versions of this file under the
|
|---|
| 31 | * terms and conditions of either the GPL or the CDDL or both.
|
|---|
| 32 | *
|
|---|
| 33 | * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
|
|---|
| 34 | */
|
|---|
| 35 |
|
|---|
| 36 | #ifndef IPRT_INCLUDED_nocrt_x86_fenv_x86_amd64_h
|
|---|
| 37 | #define IPRT_INCLUDED_nocrt_x86_fenv_x86_amd64_h
|
|---|
| 38 | #ifndef RT_WITHOUT_PRAGMA_ONCE
|
|---|
| 39 | # pragma once
|
|---|
| 40 | #endif
|
|---|
| 41 |
|
|---|
| 42 | #include <iprt/types.h>
|
|---|
| 43 |
|
|---|
| 44 | typedef struct RTNOCRTFENV
|
|---|
| 45 | {
|
|---|
| 46 | /** The FPU environment. */
|
|---|
| 47 | union
|
|---|
| 48 | {
|
|---|
| 49 | uint32_t au32[28/4];
|
|---|
| 50 | #ifdef IPRT_INCLUDED_x86_h
|
|---|
| 51 | X86FSTENV32P Env;
|
|---|
| 52 | #endif
|
|---|
| 53 | } fpu;
|
|---|
| 54 | /** The SSE control & status register. */
|
|---|
| 55 | uint32_t fMxCsr;
|
|---|
| 56 | } RTNOCRTFENV;
|
|---|
| 57 |
|
|---|
| 58 | /** Exception flags/mask. */
|
|---|
| 59 | typedef uint16_t RTNOCRTFEXCEPT;
|
|---|
| 60 |
|
|---|
| 61 | #ifndef IPRT_NOCRT_WITHOUT_CONFLICTING_TYPES
|
|---|
| 62 | typedef RTNOCRTFENV fenv_t;
|
|---|
| 63 | typedef RTNOCRTFEXCEPT fexcept_t;
|
|---|
| 64 | #endif
|
|---|
| 65 |
|
|---|
| 66 | /** @name Exception flags (same as X86_FCW_xM, X86_FSW_xE, X86_MXCSR_xE)
|
|---|
| 67 | * @note The X86_FSW_SF is not covered here as it is more of a sub-type of
|
|---|
| 68 | * invalid operand exception, and it is not part of MXCSR.
|
|---|
| 69 | * @{ */
|
|---|
| 70 | #define RT_NOCRT_FE_INVALID 0x0001
|
|---|
| 71 | #define RT_NOCRT_FE_DENORMAL 0x0002
|
|---|
| 72 | #define RT_NOCRT_FE_DIVBYZERO 0x0004
|
|---|
| 73 | #define RT_NOCRT_FE_OVERFLOW 0x0008
|
|---|
| 74 | #define RT_NOCRT_FE_UNDERFLOW 0x0010
|
|---|
| 75 | #define RT_NOCRT_FE_INEXACT 0x0020
|
|---|
| 76 | #define RT_NOCRT_FE_ALL_EXCEPT 0x003f
|
|---|
| 77 | #ifndef IPRT_NOCRT_WITHOUT_MATH_CONSTANTS
|
|---|
| 78 | # define FE_INVALID RT_NOCRT_FE_INVALID
|
|---|
| 79 | # define FE_DENORMAL RT_NOCRT_FE_DENORMAL
|
|---|
| 80 | # define FE_DIVBYZERO RT_NOCRT_FE_DIVBYZERO
|
|---|
| 81 | # define FE_OVERFLOW RT_NOCRT_FE_OVERFLOW
|
|---|
| 82 | # define FE_UNDERFLOW RT_NOCRT_FE_UNDERFLOW
|
|---|
| 83 | # define FE_INEXACT RT_NOCRT_FE_INEXACT
|
|---|
| 84 | # define FE_ALL_EXCEPT RT_NOCRT_FE_ALL_EXCEPT
|
|---|
| 85 | #endif
|
|---|
| 86 | /** @} */
|
|---|
| 87 |
|
|---|
| 88 | /** @name Rounding Modes (same X86_FCW_RC_XXX)
|
|---|
| 89 | * @{ */
|
|---|
| 90 | #define RT_NOCRT_FE_TONEAREST 0x0000
|
|---|
| 91 | #define RT_NOCRT_FE_DOWNWARD 0x0400
|
|---|
| 92 | #define RT_NOCRT_FE_UPWARD 0x0800
|
|---|
| 93 | #define RT_NOCRT_FE_TOWARDZERO 0x0c00
|
|---|
| 94 | #define RT_NOCRT_FE_ROUND_MASK 0x0c00
|
|---|
| 95 | #ifndef IPRT_NOCRT_WITHOUT_MATH_CONSTANTS
|
|---|
| 96 | # define FE_TONEAREST RT_NOCRT_FE_TONEAREST
|
|---|
| 97 | # define FE_DOWNWARD RT_NOCRT_FE_DOWNWARD
|
|---|
| 98 | # define FE_UPWARD RT_NOCRT_FE_UPWARD
|
|---|
| 99 | # define FE_TOWARDZERO RT_NOCRT_FE_TOWARDZERO
|
|---|
| 100 | #endif
|
|---|
| 101 | /** @} */
|
|---|
| 102 |
|
|---|
| 103 |
|
|---|
| 104 | /** @name x87 Precision (same X86_FCW_PC_XXX)
|
|---|
| 105 | * @{ */
|
|---|
| 106 | #define RT_NOCRT_PC_FLOAT 0x0000
|
|---|
| 107 | #define RT_NOCRT_PC_RSVD 0x0100
|
|---|
| 108 | #define RT_NOCRT_PC_DOUBLE 0x0200
|
|---|
| 109 | #define RT_NOCRT_PC_EXTENDED 0x0300
|
|---|
| 110 | #define RT_NOCRT_PC_MASK 0x0300
|
|---|
| 111 | /** @} */
|
|---|
| 112 |
|
|---|
| 113 |
|
|---|
| 114 | /** @name Special environment pointer values.
|
|---|
| 115 | * @note Only valid with fesetenv and feupdateenv.
|
|---|
| 116 | * @note Defined as constants in fesetenv.asm.
|
|---|
| 117 | * @{ */
|
|---|
| 118 | /** The default FPU+SSE environment set, all exceptions disabled (masked). */
|
|---|
| 119 | #define RT_NOCRT_FE_DFL_ENV ((RTNOCRTFENV const *)(intptr_t)1)
|
|---|
| 120 | /** The default FPU+SSE environment set, but all exceptions enabled (unmasked)
|
|---|
| 121 | * except for RT_NOCRT_FE_DENORMAL. */
|
|---|
| 122 | #define RT_NOCRT_FE_NOMASK_ENV ((RTNOCRTFENV const *)(intptr_t)2)
|
|---|
| 123 | /** The default FPU+SSE environment set, all exceptions disabled (masked),
|
|---|
| 124 | * double precision (53 bit mantissa). */
|
|---|
| 125 | #define RT_NOCRT_FE_PC53_ENV ((RTNOCRTFENV const *)(intptr_t)3)
|
|---|
| 126 | /** The default FPU+SSE environment set, all exceptions disabled (masked),
|
|---|
| 127 | * extended double precision (64 bit mantissa). */
|
|---|
| 128 | #define RT_NOCRT_FE_PC64_ENV ((RTNOCRTFENV const *)(intptr_t)4)
|
|---|
| 129 | #ifndef IPRT_NOCRT_WITHOUT_MATH_CONSTANTS
|
|---|
| 130 | # define FE_DFL_ENV RT_NOCRT_FE_DFL_ENV
|
|---|
| 131 | # define FE_NOMASK_ENV RT_NOCRT_FE_NOMASK_ENV
|
|---|
| 132 | # define FE_PC53_ENV RT_NOCRT_FE_PC53_ENV
|
|---|
| 133 | # define FE_PC64_ENV RT_NOCRT_FE_PC64_ENV
|
|---|
| 134 | #endif
|
|---|
| 135 | /** @} */
|
|---|
| 136 |
|
|---|
| 137 | RT_C_DECLS_BEGIN
|
|---|
| 138 |
|
|---|
| 139 | int RT_NOCRT(fegetenv)(RTNOCRTFENV *);
|
|---|
| 140 | int RT_NOCRT(fesetenv)(RTNOCRTFENV const *);
|
|---|
| 141 | int RT_NOCRT(feholdexcept)(RTNOCRTFENV *);
|
|---|
| 142 | int RT_NOCRT(feupdateenv)(RTNOCRTFENV const *);
|
|---|
| 143 |
|
|---|
| 144 | int RT_NOCRT(fegetround)(void);
|
|---|
| 145 | int RT_NOCRT(fesetround)(int);
|
|---|
| 146 |
|
|---|
| 147 | int RT_NOCRT(fegetexcept)(void);
|
|---|
| 148 | int RT_NOCRT(feenableexcept)(int);
|
|---|
| 149 | int RT_NOCRT(fedisableexcept)(int);
|
|---|
| 150 |
|
|---|
| 151 | int RT_NOCRT(feclearexcept)(int);
|
|---|
| 152 | int RT_NOCRT(fetestexcept)(int);
|
|---|
| 153 | int RT_NOCRT(fegetexceptflag)(RTNOCRTFEXCEPT *, int);
|
|---|
| 154 | int RT_NOCRT(fesetexceptflag)(RTNOCRTFEXCEPT const *, int);
|
|---|
| 155 |
|
|---|
| 156 | int RT_NOCRT(feraiseexcept)(int);
|
|---|
| 157 |
|
|---|
| 158 | /* IPRT addition: */
|
|---|
| 159 | int RT_NOCRT(fegetx87precision)(void);
|
|---|
| 160 | int RT_NOCRT(fesetx87precision)(int);
|
|---|
| 161 |
|
|---|
| 162 | /* Underscored variants: */
|
|---|
| 163 | int RT_NOCRT(_fegetenv)(RTNOCRTFENV *);
|
|---|
| 164 | int RT_NOCRT(_fesetenv)(RTNOCRTFENV const *);
|
|---|
| 165 | int RT_NOCRT(_feholdexcept)(RTNOCRTFENV *);
|
|---|
| 166 | int RT_NOCRT(_feupdateenv)(RTNOCRTFENV const *);
|
|---|
| 167 |
|
|---|
| 168 | int RT_NOCRT(_fegetround)(void);
|
|---|
| 169 | int RT_NOCRT(_fesetround)(int);
|
|---|
| 170 |
|
|---|
| 171 | int RT_NOCRT(_fegetexcept)(void);
|
|---|
| 172 | int RT_NOCRT(_feenableexcept)(int);
|
|---|
| 173 | int RT_NOCRT(_fedisableexcept)(int);
|
|---|
| 174 |
|
|---|
| 175 | int RT_NOCRT(_feclearexcept)(int);
|
|---|
| 176 | int RT_NOCRT(_fetestexcept)(int);
|
|---|
| 177 | int RT_NOCRT(_fegetexceptflag)(RTNOCRTFEXCEPT *, int);
|
|---|
| 178 | int RT_NOCRT(_fesetexceptflag)(RTNOCRTFEXCEPT const *, int);
|
|---|
| 179 |
|
|---|
| 180 | int RT_NOCRT(_feraiseexcept)(int);
|
|---|
| 181 |
|
|---|
| 182 | /* Aliases: */
|
|---|
| 183 | #if !defined(RT_WITHOUT_NOCRT_WRAPPERS) && !defined(RT_WITHOUT_NOCRT_WRAPPER_ALIASES)
|
|---|
| 184 | # define fegetenv RT_NOCRT(fegetenv)
|
|---|
| 185 | # define fesetenv RT_NOCRT(fesetenv)
|
|---|
| 186 | # define feholdexcept RT_NOCRT(feholdexcept)
|
|---|
| 187 | # define feupdateenv RT_NOCRT(feupdateenv)
|
|---|
| 188 | # define fegetround RT_NOCRT(fegetround)
|
|---|
| 189 | # define fesetround RT_NOCRT(fesetround)
|
|---|
| 190 | # define fegetexcept RT_NOCRT(fegetexcept)
|
|---|
| 191 | # define feenableexcept RT_NOCRT(feenableexcept)
|
|---|
| 192 | # define fedisableexcept RT_NOCRT(fedisableexcept)
|
|---|
| 193 | # define feclearexcept RT_NOCRT(feclearexcept)
|
|---|
| 194 | # define fetestexcept RT_NOCRT(fetestexcept)
|
|---|
| 195 | # define fegetexceptflag RT_NOCRT(fegetexceptflag)
|
|---|
| 196 | # define fesetexceptflag RT_NOCRT(fesetexceptflag)
|
|---|
| 197 | # define feraiseexcept RT_NOCRT(feraiseexcept)
|
|---|
| 198 |
|
|---|
| 199 | /* Underscored variants: */
|
|---|
| 200 | # define _fegetenv RT_NOCRT(fegetenv)
|
|---|
| 201 | # define _fesetenv RT_NOCRT(fesetenv)
|
|---|
| 202 | # define _feholdexcept RT_NOCRT(feholdexcept)
|
|---|
| 203 | # define _feupdateenv RT_NOCRT(feupdateenv)
|
|---|
| 204 | # define _fegetround RT_NOCRT(fegetround)
|
|---|
| 205 | # define _fesetround RT_NOCRT(fesetround)
|
|---|
| 206 | # define _fegetexcept RT_NOCRT(fegetexcept)
|
|---|
| 207 | # define _feenableexcept RT_NOCRT(feenableexcept)
|
|---|
| 208 | # define _fedisableexcept RT_NOCRT(fedisableexcept)
|
|---|
| 209 | # define _feclearexcept RT_NOCRT(feclearexcept)
|
|---|
| 210 | # define _fetestexcept RT_NOCRT(fetestexcept)
|
|---|
| 211 | # define _fegetexceptflag RT_NOCRT(fegetexceptflag)
|
|---|
| 212 | # define _fesetexceptflag RT_NOCRT(fesetexceptflag)
|
|---|
| 213 | # define _feraiseexcept RT_NOCRT(feraiseexcept)
|
|---|
| 214 | #endif
|
|---|
| 215 |
|
|---|
| 216 | RT_C_DECLS_END
|
|---|
| 217 |
|
|---|
| 218 | #endif /* !IPRT_INCLUDED_nocrt_x86_fenv_x86_amd64_h */
|
|---|
| 219 |
|
|---|
