/* $NetBSD: fenv.h,v 1.2 2017/01/14 12:00:13 martin Exp $ */ /*- * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG> * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ #ifndef _SPARC_FENV_H_ #define _SPARC_FENV_H_ #include <sys/stdint.h> #ifdef __arch64__ typedef uint64_t fenv_t; typedef uint64_t fexcept_t; #else typedef uint32_t fenv_t; typedef uint32_t fexcept_t; #endif /* * Exception flags * * Symbols are defined in such a way, to correspond to the accrued * exception bits (aexc) fields of FSR. */ #define FE_INEXACT 0x00000020 /* 0000100000 */ #define FE_DIVBYZERO 0x00000040 /* 0001000000 */ #define FE_UNDERFLOW 0x00000080 /* 0010000000 */ #define FE_OVERFLOW 0x00000100 /* 0100000000 */ #define FE_INVALID 0x00000200 /* 1000000000 */ #define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \ FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW) /* * Rounding modes * * We can't just use the hardware bit values here, because that would * make FE_UPWARD and FE_DOWNWARD negative, which is not allowed. */ #define FE_TONEAREST 0 /* round to nearest representable number */ #define FE_TOWARDZERO 1 /* round to zero (truncate) */ #define FE_UPWARD 2 /* round toward positive infinity */ #define FE_DOWNWARD 3 /* round toward negative infinity */ #define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \ FE_UPWARD | FE_TOWARDZERO) #define _ROUND_SHIFT 30 __BEGIN_DECLS /* Default floating-point environment */ extern const fenv_t __fe_dfl_env; #define FE_DFL_ENV (&__fe_dfl_env) /* We need to be able to map status flag positions to mask flag positions */ #define _FPUSW_SHIFT 18 #define _ENABLE_MASK (FE_ALL_EXCEPT << _FPUSW_SHIFT) __END_DECLS #endif /* !_SPARC_FENV_H_ */ |