You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
95 lines
3.5 KiB
95 lines
3.5 KiB
/*- |
|
* 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
|
|
|