| fenv.h (226218) | fenv.h (230192) |
|---|---|
| 1/*- 2 * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
| 26 * $FreeBSD: head/lib/msun/arm/fenv.h 226218 2011-10-10 15:43:09Z das $ | 26 * $FreeBSD: head/lib/msun/arm/fenv.h 230192 2012-01-16 04:09:17Z das $ |
| 27 */ 28 29#ifndef _FENV_H_ 30#define _FENV_H_ 31 32#include <sys/_types.h> 33 34#ifndef __fenv_static --- 24 unchanged lines hidden (view full) --- 59/* Default floating-point environment */ 60extern const fenv_t __fe_dfl_env; 61#define FE_DFL_ENV (&__fe_dfl_env) 62 63/* We need to be able to map status flag positions to mask flag positions */ 64#define _FPUSW_SHIFT 16 65#define _ENABLE_MASK (FE_ALL_EXCEPT << _FPUSW_SHIFT) 66 | 27 */ 28 29#ifndef _FENV_H_ 30#define _FENV_H_ 31 32#include <sys/_types.h> 33 34#ifndef __fenv_static --- 24 unchanged lines hidden (view full) --- 59/* Default floating-point environment */ 60extern const fenv_t __fe_dfl_env; 61#define FE_DFL_ENV (&__fe_dfl_env) 62 63/* We need to be able to map status flag positions to mask flag positions */ 64#define _FPUSW_SHIFT 16 65#define _ENABLE_MASK (FE_ALL_EXCEPT << _FPUSW_SHIFT) 66 |
| 67#ifdef ARM_HARD_FLOAT | 67#ifndef ARM_HARD_FLOAT 68/* 69 * The following macros map between the softfloat emulator's flags and 70 * the hardware's FPSR. The hardware this file was written for doesn't 71 * have rounding control bits, so we stick those in the system ID byte. 72 */ 73#define __set_env(env, flags, mask, rnd) env = ((flags) \ 74 | (mask)<<_FPUSW_SHIFT \ 75 | (rnd) << 24) 76#define __env_flags(env) ((env) & FE_ALL_EXCEPT) 77#define __env_mask(env) (((env) >> _FPUSW_SHIFT) \ 78 & FE_ALL_EXCEPT) 79#define __env_round(env) (((env) >> 24) & _ROUND_MASK) 80#include <fenv-softfloat.h> 81 82#else /* ARM_HARD_FLOAT */ 83 |
| 68#define __rfs(__fpsr) __asm __volatile("rfs %0" : "=r" (*(__fpsr))) 69#define __wfs(__fpsr) __asm __volatile("wfs %0" : : "r" (__fpsr)) | 84#define __rfs(__fpsr) __asm __volatile("rfs %0" : "=r" (*(__fpsr))) 85#define __wfs(__fpsr) __asm __volatile("wfs %0" : : "r" (__fpsr)) |
| 70#else 71#define __rfs(__fpsr) 72#define __wfs(__fpsr) 73#endif | |
| 74 75__fenv_static inline int 76feclearexcept(int __excepts) 77{ 78 fexcept_t __fpsr; 79 80 __rfs(&__fpsr); 81 __fpsr &= ~__excepts; --- 131 unchanged lines hidden (view full) --- 213 fenv_t __fpsr; 214 215 __rfs(&__fpsr); 216 return ((__fpsr & _ENABLE_MASK) >> _FPUSW_SHIFT); 217} 218 219#endif /* __BSD_VISIBLE */ 220 | 86 87__fenv_static inline int 88feclearexcept(int __excepts) 89{ 90 fexcept_t __fpsr; 91 92 __rfs(&__fpsr); 93 __fpsr &= ~__excepts; --- 131 unchanged lines hidden (view full) --- 225 fenv_t __fpsr; 226 227 __rfs(&__fpsr); 228 return ((__fpsr & _ENABLE_MASK) >> _FPUSW_SHIFT); 229} 230 231#endif /* __BSD_VISIBLE */ 232 |
| 233#endif /* ARM_HARD_FLOAT */ 234 |
|
| 221__END_DECLS 222 223#endif /* !_FENV_H_ */ | 235__END_DECLS 236 237#endif /* !_FENV_H_ */ |