42 lines
1.4 KiB
C
42 lines
1.4 KiB
C
/* Install given floating-point environment.
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Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jes Sorensen <Jes.Sorensen@cern.ch>, 2000
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <fenv.h>
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int
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fesetenv (const fenv_t *envp)
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{
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fenv_t env;
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/*
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This stinks!
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Magic encoding of default values: bit 62+63 set (which will never
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happen for a user-space address) means it's not indirect.
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*/
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if (((unsigned long int) envp >> 62) == 0x03)
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env = (unsigned long int) envp & 0x3fffffffffffffff;
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else
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env = *envp;
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__asm__ __volatile__ ("mov.m ar.fpsr=%0;;" :: "r" (env));
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return 0;
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}
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