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/* Floating point environment, OpenRISC version.
Copyright (C) 2022-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _FENV_H
# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
#endif
#ifdef __or1k_hard_float__
/* Define bits representing exceptions in the FPCSR status word. */
enum
{
FE_OVERFLOW =
#define FE_OVERFLOW (1 << 3)
FE_OVERFLOW,
FE_UNDERFLOW =
#define FE_UNDERFLOW (1 << 4)
FE_UNDERFLOW,
FE_INEXACT =
#define FE_INEXACT (1 << 8)
FE_INEXACT,
FE_INVALID =
#define FE_INVALID (1 << 9)
FE_INVALID,
FE_DIVBYZERO =
#define FE_DIVBYZERO (1 << 11)
FE_DIVBYZERO,
};
/* All supported exceptions. */
#define FE_ALL_EXCEPT \
(FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW | FE_INEXACT)
/* Define bits representing rounding modes in the FPCSR Rmode field. */
#define FE_TONEAREST (0x0 << 1)
#define FE_TOWARDZERO (0x1 << 1)
#define FE_UPWARD (0x2 << 1)
#define FE_DOWNWARD (0x3 << 1)
#else
/* In the soft-float case only rounding to nearest is supported, with
no exceptions. */
enum
{
__FE_UNDEFINED = -1,
FE_TONEAREST =
# define FE_TONEAREST 0x0
FE_TONEAREST
};
# define FE_ALL_EXCEPT 0
#endif /* __or1k_hard_float__ */
/* Type representing exception flags. */
typedef unsigned int fexcept_t;
/* Type representing floating-point environment. */
typedef unsigned int fenv_t;
/* If the default argument is used we use this value. */
#define FE_DFL_ENV ((const fenv_t *) -1l)
#if __GLIBC_USE (IEC_60559_BFP_EXT)
/* Type representing floating-point control modes. */
typedef unsigned int femode_t;
/* Default floating-point control modes. */
# define FE_DFL_MODE ((const femode_t *) -1L)
#endif
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