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sh3eb: copy files from the MIPS softfp fenv.h
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Lephenixnoir
parent
b34f107e24
commit
1b364a5edf
4 changed files with 586 additions and 0 deletions
278
include/openlibm_fenv_sh3eb.h
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278
include/openlibm_fenv_sh3eb.h
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@ -0,0 +1,278 @@
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/*-
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* Copyright (c) 2004-2005 David Schultz <das@FreeBSD.ORG>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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||||
* are met:
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||||
* 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
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _FENV_H_
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#define _FENV_H_
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#include <stdint.h>
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#include "cdefs-compat.h"
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#ifndef __fenv_static
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#define __fenv_static static
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#endif
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typedef uint32_t fenv_t;
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typedef uint32_t fexcept_t;
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/* Exception flags */
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#ifdef __mips_soft_float
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#define _FPUSW_SHIFT 16
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#define FE_INVALID 0x0001
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#define FE_DIVBYZERO 0x0002
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#define FE_OVERFLOW 0x0004
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#define FE_UNDERFLOW 0x0008
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#define FE_INEXACT 0x0010
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#else
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#define _FCSR_CAUSE_SHIFT 10
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#define FE_INVALID 0x0040
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#define FE_DIVBYZERO 0x0020
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#define FE_OVERFLOW 0x0010
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#define FE_UNDERFLOW 0x0008
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#define FE_INEXACT 0x0004
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#endif
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#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
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FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
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/* Rounding modes */
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#define FE_TONEAREST 0x0000
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#define FE_TOWARDZERO 0x0001
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#define FE_UPWARD 0x0002
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#define FE_DOWNWARD 0x0003
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#define _ROUND_MASK (FE_TONEAREST | FE_DOWNWARD | \
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FE_UPWARD | FE_TOWARDZERO)
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__BEGIN_DECLS
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/* Default floating-point environment */
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extern const fenv_t __fe_dfl_env;
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#define FE_DFL_ENV (&__fe_dfl_env)
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/* We need to be able to map status flag positions to mask flag positions */
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#define _ENABLE_SHIFT 5
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#define _ENABLE_MASK (FE_ALL_EXCEPT << _ENABLE_SHIFT)
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#ifndef __mips_soft_float
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#define __cfc1(__fcsr) __asm __volatile("cfc1 %0, $31" : "=r" (__fcsr))
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#define __ctc1(__fcsr) __asm __volatile("ctc1 %0, $31" :: "r" (__fcsr))
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#endif
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#ifdef __mips_soft_float
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int feclearexcept(int __excepts);
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int fegetexceptflag(fexcept_t *__flagp, int __excepts);
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int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
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int feraiseexcept(int __excepts);
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int fetestexcept(int __excepts);
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int fegetround(void);
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int fesetround(int __round);
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int fegetenv(fenv_t *__envp);
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int feholdexcept(fenv_t *__envp);
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int fesetenv(const fenv_t *__envp);
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int feupdateenv(const fenv_t *__envp);
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#else
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__fenv_static inline int
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feclearexcept(int __excepts)
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{
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fexcept_t fcsr;
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__excepts &= FE_ALL_EXCEPT;
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__cfc1(fcsr);
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fcsr &= ~(__excepts | (__excepts << _FCSR_CAUSE_SHIFT));
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__ctc1(fcsr);
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return (0);
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}
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__fenv_static inline int
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fegetexceptflag(fexcept_t *__flagp, int __excepts)
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{
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fexcept_t fcsr;
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__excepts &= FE_ALL_EXCEPT;
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__cfc1(fcsr);
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*__flagp = fcsr & __excepts;
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return (0);
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}
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__fenv_static inline int
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fesetexceptflag(const fexcept_t *__flagp, int __excepts)
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{
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fexcept_t fcsr;
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__excepts &= FE_ALL_EXCEPT;
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__cfc1(fcsr);
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fcsr &= ~__excepts;
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fcsr |= *__flagp & __excepts;
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__ctc1(fcsr);
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return (0);
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}
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__fenv_static inline int
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feraiseexcept(int __excepts)
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{
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fexcept_t fcsr;
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__excepts &= FE_ALL_EXCEPT;
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__cfc1(fcsr);
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fcsr |= __excepts | (__excepts << _FCSR_CAUSE_SHIFT);
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__ctc1(fcsr);
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return (0);
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}
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__fenv_static inline int
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fetestexcept(int __excepts)
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{
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fexcept_t fcsr;
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__excepts &= FE_ALL_EXCEPT;
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__cfc1(fcsr);
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return (fcsr & __excepts);
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}
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__fenv_static inline int
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fegetround(void)
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{
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fexcept_t fcsr;
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__cfc1(fcsr);
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return (fcsr & _ROUND_MASK);
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}
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__fenv_static inline int
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fesetround(int __round)
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{
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fexcept_t fcsr;
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if (__round & ~_ROUND_MASK)
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return (-1);
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__cfc1(fcsr);
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fcsr &= ~_ROUND_MASK;
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fcsr |= __round;
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__ctc1(fcsr);
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return (0);
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}
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__fenv_static inline int
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fegetenv(fenv_t *__envp)
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{
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__cfc1(*__envp);
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return (0);
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}
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__fenv_static inline int
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feholdexcept(fenv_t *__envp)
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{
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fexcept_t fcsr;
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__cfc1(fcsr);
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*__envp = fcsr;
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fcsr &= ~(FE_ALL_EXCEPT | _ENABLE_MASK);
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__ctc1(fcsr);
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return (0);
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}
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__fenv_static inline int
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fesetenv(const fenv_t *__envp)
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{
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__ctc1(*__envp);
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return (0);
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}
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__fenv_static inline int
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feupdateenv(const fenv_t *__envp)
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{
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fexcept_t fcsr;
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__cfc1(fcsr);
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fesetenv(__envp);
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feraiseexcept(fcsr);
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return (0);
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}
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#endif /* !__mips_soft_float */
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#if __BSD_VISIBLE
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/* We currently provide no external definitions of the functions below. */
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#ifdef __mips_soft_float
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int feenableexcept(int __mask);
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int fedisableexcept(int __mask);
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int fegetexcept(void);
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#else
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static inline int
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feenableexcept(int __mask)
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{
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fenv_t __old_fcsr, __new_fcsr;
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__cfc1(__old_fcsr);
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__new_fcsr = __old_fcsr | (__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT;
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__ctc1(__new_fcsr);
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return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT);
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}
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static inline int
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fedisableexcept(int __mask)
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{
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fenv_t __old_fcsr, __new_fcsr;
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__cfc1(__old_fcsr);
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__new_fcsr = __old_fcsr & ~((__mask & FE_ALL_EXCEPT) << _ENABLE_SHIFT);
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__ctc1(__new_fcsr);
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return ((__old_fcsr >> _ENABLE_SHIFT) & FE_ALL_EXCEPT);
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}
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static inline int
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fegetexcept(void)
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{
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fexcept_t fcsr;
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__cfc1(fcsr);
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return ((fcsr & _ENABLE_MASK) >> _ENABLE_SHIFT);
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}
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#endif /* !__mips_soft_float */
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#endif /* __BSD_VISIBLE */
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__END_DECLS
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#endif /* !_FENV_H_ */
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184
sh3eb/fenv-softfloat.h
Normal file
184
sh3eb/fenv-softfloat.h
Normal file
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@ -0,0 +1,184 @@
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/*-
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* Copyright (c) 2004-2011 David Schultz <das@FreeBSD.ORG>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
|
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* 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.
|
||||
*
|
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* 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
|
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _FENV_H_
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#error "This file is meant to be included only by <fenv.h>."
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#endif
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/*
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* This file implements the functionality of <fenv.h> on platforms that
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* lack an FPU and use softfloat in libc for floating point. To use it,
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* you must write an <fenv.h> that provides the following:
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*
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* - a typedef for fenv_t, which may be an integer or struct type
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* - a typedef for fexcept_t (XXX This file assumes fexcept_t is a
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* simple integer type containing the exception mask.)
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* - definitions of FE_* constants for the five exceptions and four
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* rounding modes in IEEE 754, as described in fenv(3)
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* - a definition, and the corresponding external symbol, for FE_DFL_ENV
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* - a macro __set_env(env, flags, mask, rnd), which sets the given fenv_t
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* from the exception flags, mask, and rounding mode
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* - macros __env_flags(env), __env_mask(env), and __env_round(env), which
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* extract fields from an fenv_t
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* - a definition of __fenv_static
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*
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* If the architecture supports an optional FPU, it's recommended that you
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* define fenv_t and fexcept_t to match the hardware ABI. Otherwise, it
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* doesn't matter how you define them.
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*/
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extern int __softfloat_float_exception_flags;
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extern int __softfloat_float_exception_mask;
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extern int __softfloat_float_rounding_mode;
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void __softfloat_float_raise(int);
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__fenv_static inline int
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feclearexcept(int __excepts)
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{
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__softfloat_float_exception_flags &= ~__excepts;
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return (0);
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}
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__fenv_static inline int
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fegetexceptflag(fexcept_t *__flagp, int __excepts)
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{
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*__flagp = __softfloat_float_exception_flags & __excepts;
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return (0);
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}
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__fenv_static inline int
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fesetexceptflag(const fexcept_t *__flagp, int __excepts)
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{
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__softfloat_float_exception_flags &= ~__excepts;
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__softfloat_float_exception_flags |= *__flagp & __excepts;
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return (0);
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}
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__fenv_static inline int
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feraiseexcept(int __excepts)
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{
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__softfloat_float_raise(__excepts);
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return (0);
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}
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__fenv_static inline int
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fetestexcept(int __excepts)
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{
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return (__softfloat_float_exception_flags & __excepts);
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}
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__fenv_static inline int
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fegetround(void)
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{
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return (__softfloat_float_rounding_mode);
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}
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__fenv_static inline int
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fesetround(int __round)
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{
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__softfloat_float_rounding_mode = __round;
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return (0);
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}
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__fenv_static inline int
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fegetenv(fenv_t *__envp)
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{
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__set_env(*__envp, __softfloat_float_exception_flags,
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__softfloat_float_exception_mask, __softfloat_float_rounding_mode);
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return (0);
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}
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__fenv_static inline int
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feholdexcept(fenv_t *__envp)
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{
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fenv_t __env;
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fegetenv(__envp);
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__softfloat_float_exception_flags = 0;
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__softfloat_float_exception_mask = 0;
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return (0);
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}
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__fenv_static inline int
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fesetenv(const fenv_t *__envp)
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{
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__softfloat_float_exception_flags = __env_flags(*__envp);
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__softfloat_float_exception_mask = __env_mask(*__envp);
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__softfloat_float_rounding_mode = __env_round(*__envp);
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return (0);
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}
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__fenv_static inline int
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feupdateenv(const fenv_t *__envp)
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{
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int __oflags = __softfloat_float_exception_flags;
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fesetenv(__envp);
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feraiseexcept(__oflags);
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return (0);
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}
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#if __BSD_VISIBLE
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/* We currently provide no external definitions of the functions below. */
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__fenv_static inline int
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feenableexcept(int __mask)
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{
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int __omask = __softfloat_float_exception_mask;
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__softfloat_float_exception_mask |= __mask;
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return (__omask);
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}
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__fenv_static inline int
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fedisableexcept(int __mask)
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{
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int __omask = __softfloat_float_exception_mask;
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__softfloat_float_exception_mask &= ~__mask;
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return (__omask);
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}
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__fenv_static inline int
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fegetexcept(void)
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{
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return (__softfloat_float_exception_mask);
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}
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#endif /* __BSD_VISIBLE */
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67
sh3eb/fenv.c
Normal file
67
sh3eb/fenv.c
Normal file
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@ -0,0 +1,67 @@
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/*-
|
||||
* Copyright (c) 2004 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
#define __fenv_static
|
||||
#include "openlibm_fenv.h"
|
||||
|
||||
#ifdef __GNUC_GNU_INLINE__
|
||||
#error "This file must be compiled with C99 'inline' semantics"
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Hopefully the system ID byte is immutable, so it's valid to use
|
||||
* this as a default environment.
|
||||
*/
|
||||
const fenv_t __fe_dfl_env = 0;
|
||||
|
||||
#ifdef __mips_soft_float
|
||||
#define __set_env(env, flags, mask, rnd) env = ((flags) \
|
||||
| (mask)<<_FPUSW_SHIFT \
|
||||
| (rnd) << 24)
|
||||
#define __env_flags(env) ((env) & FE_ALL_EXCEPT)
|
||||
#define __env_mask(env) (((env) >> _FPUSW_SHIFT) \
|
||||
& FE_ALL_EXCEPT)
|
||||
#define __env_round(env) (((env) >> 24) & _ROUND_MASK)
|
||||
#include "fenv-softfloat.h"
|
||||
#endif
|
||||
|
||||
extern inline int feclearexcept(int __excepts);
|
||||
extern inline int fegetexceptflag(fexcept_t *__flagp, int __excepts);
|
||||
extern inline int fesetexceptflag(const fexcept_t *__flagp, int __excepts);
|
||||
extern inline int feraiseexcept(int __excepts);
|
||||
extern inline int fetestexcept(int __excepts);
|
||||
extern inline int fegetround(void);
|
||||
extern inline int fesetround(int __round);
|
||||
extern inline int fegetenv(fenv_t *__envp);
|
||||
extern inline int feholdexcept(fenv_t *__envp);
|
||||
extern inline int fesetenv(const fenv_t *__envp);
|
||||
extern inline int feupdateenv(const fenv_t *__envp);
|
||||
extern inline int feenableexcept(int __mask);
|
||||
extern inline int fedisableexcept(int __mask);
|
||||
extern inline int fegetexcept(void);
|
||||
|
||||
57
src/sh3eb_fpmath.h
Normal file
57
src/sh3eb_fpmath.h
Normal file
|
|
@ -0,0 +1,57 @@
|
|||
/*-
|
||||
* Copyright (c) 2002, 2003 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.
|
||||
*
|
||||
* $FreeBSD$
|
||||
*/
|
||||
|
||||
union IEEEl2bits {
|
||||
long double e;
|
||||
struct {
|
||||
#ifndef __MIPSEB__
|
||||
unsigned int manl :32;
|
||||
unsigned int manh :20;
|
||||
unsigned int exp :11;
|
||||
unsigned int sign :1;
|
||||
#else
|
||||
unsigned int sign :1;
|
||||
unsigned int exp :11;
|
||||
unsigned int manh :20;
|
||||
unsigned int manl :32;
|
||||
#endif
|
||||
} bits;
|
||||
};
|
||||
|
||||
#define LDBL_NBIT 0
|
||||
#define mask_nbit_l(u) ((void)0)
|
||||
#define LDBL_IMPLICIT_NBIT
|
||||
|
||||
#define LDBL_MANH_SIZE 20
|
||||
#define LDBL_MANL_SIZE 32
|
||||
|
||||
#define LDBL_TO_ARRAY32(u, a) do { \
|
||||
(a)[0] = (uint32_t)(u).bits.manl; \
|
||||
(a)[1] = (uint32_t)(u).bits.manh; \
|
||||
} while(0)
|
||||
|
||||
Loading…
Reference in a new issue