Blame sysdeps/m68k/fpu/fedisblxcpt.c

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/* Disable floating-point exceptions.
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   Copyright (C) 2000-2018 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   Contributed by Andreas Schwab <schwab@suse.de>, 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 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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   <http://www.gnu.org/licenses/>.  */
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#include <fenv.h>
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int
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fedisableexcept (int excepts)
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{
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  unsigned int old_exc, new_exc;
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  /* Get the current control register contents.  */
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  __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc));
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  old_exc = (new_exc >> 6) & FE_ALL_EXCEPT;
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  excepts &= FE_ALL_EXCEPT;
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  new_exc &= ~(excepts << 6);
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  __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc));
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  return old_exc;
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}