222ce95c8a
Bug: http://b/32709207 Test: ran tests Change-Id: I58d354e9f8b1e6023427ba271bf39e4e24b7f8ab
95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/*-
|
|
* 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: src/lib/msun/arm/fenv.h,v 1.5 2005/03/16 19:03:45 das Exp $
|
|
*/
|
|
|
|
/*
|
|
Rewritten for Android.
|
|
*/
|
|
|
|
/* MIPS FPU floating point control register bits.
|
|
*
|
|
* 31-25 -> floating point conditions code bits set by FP compare
|
|
* instructions
|
|
* 24 -> flush denormalized results to zero instead of
|
|
* causing unimplemented operation exception.
|
|
* 23 -> Condition bit
|
|
* 22 -> In conjunction with FS detects denormalized
|
|
* operands and replaces them internally with 0.
|
|
* 21 -> In conjunction with FS forces denormalized operands
|
|
* to the closest normalized value.
|
|
* 20-18 -> reserved (read as 0, write with 0)
|
|
* 17 -> cause bit for unimplemented operation
|
|
* 16 -> cause bit for invalid exception
|
|
* 15 -> cause bit for division by zero exception
|
|
* 14 -> cause bit for overflow exception
|
|
* 13 -> cause bit for underflow exception
|
|
* 12 -> cause bit for inexact exception
|
|
* 11 -> enable exception for invalid exception
|
|
* 10 -> enable exception for division by zero exception
|
|
* 9 -> enable exception for overflow exception
|
|
* 8 -> enable exception for underflow exception
|
|
* 7 -> enable exception for inexact exception
|
|
* 6 -> flag invalid exception
|
|
* 5 -> flag division by zero exception
|
|
* 4 -> flag overflow exception
|
|
* 3 -> flag underflow exception
|
|
* 2 -> flag inexact exception
|
|
* 1-0 -> rounding control
|
|
*
|
|
*
|
|
* Rounding Control:
|
|
* 00 - rounding to nearest (RN)
|
|
* 01 - rounding toward zero (RZ)
|
|
* 10 - rounding (up) toward plus infinity (RP)
|
|
* 11 - rounding (down)toward minus infinity (RM)
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <sys/types.h>
|
|
|
|
__BEGIN_DECLS
|
|
|
|
typedef __uint32_t fenv_t;
|
|
typedef __uint32_t fexcept_t;
|
|
|
|
/* Exception flags */
|
|
#define FE_INVALID 0x40
|
|
#define FE_DIVBYZERO 0x20
|
|
#define FE_OVERFLOW 0x10
|
|
#define FE_UNDERFLOW 0x08
|
|
#define FE_INEXACT 0x04
|
|
#define FE_ALL_EXCEPT (FE_DIVBYZERO | FE_INEXACT | \
|
|
FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
|
|
|
|
/* Rounding modes */
|
|
#define FE_TONEAREST 0x0000
|
|
#define FE_TOWARDZERO 0x0001
|
|
#define FE_UPWARD 0x0002
|
|
#define FE_DOWNWARD 0x0003
|
|
|
|
__END_DECLS
|