| /*- |
| * 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) |
| */ |
| |
| #ifndef _MIPS_FENV_H_ |
| #define _MIPS_FENV_H_ |
| |
| #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 |
| |
| #endif /* !_MIPS_FENV_H_ */ |
