43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
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/* Install given floating-point environment.
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Copyright (C) 1997-2022 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the 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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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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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 (((fenv_t) envp >> 62) == 0x03)
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env = (fenv_t) 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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libm_hidden_def (__fesetenv)
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weak_alias (__fesetenv, fesetenv)
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libm_hidden_weak (fesetenv)
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