42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
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/* Install given floating-point control modes. PowerPC version.
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Copyright (C) 2016-2022 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_libc.h>
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#include <fpu_control.h>
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int
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fesetmode (const femode_t *modep)
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{
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fenv_union_t old, new;
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/* Logic regarding enabled exceptions as in fesetenv. */
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new.fenv = *modep;
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old.fenv = fegetenv_control ();
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new.l = (new.l & ~FPSCR_STATUS_MASK) | (old.l & FPSCR_STATUS_MASK);
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if (old.l == new.l)
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return 0;
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__TEST_AND_EXIT_NON_STOP (old.l, new.l);
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__TEST_AND_ENTER_NON_STOP (old.l, new.l);
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fesetenv_control (new.fenv);
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return 0;
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}
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