| /*- |
| * 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: src/lib/msun/ia64/fenv.c,v 1.2 2004/06/11 02:35:30 das Exp $ |
| */ |
| |
| #include <sys/types.h> |
| #include <fenv.h> |
| |
| const fenv_t __fe_dfl_env = 0x0009804c8a70033fULL; |
| |
| /* |
| * It doesn't pay to inline feupdateenv() because it includes one of |
| * the rare uses of feraiseexcept() where the argument is not a |
| * constant. Thus, no dead code elimination can occur, resulting in |
| * significant bloat. |
| */ |
| int |
| feupdateenv(const fenv_t *envp) |
| { |
| fenv_t fpsr; |
| |
| __stfpsr(&fpsr); |
| __ldfpsr(*envp); |
| feraiseexcept((fpsr >> _FPUSW_SHIFT) & FE_ALL_EXCEPT); |
| return (0); |
| } |