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38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* Set current rounding direction.
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Copyright (C) 2000, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com).
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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_libc.h>
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#include <fpu_control.h>
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int
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fesetround (int round)
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{
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if ((round|FPC_RM_MASK) != FPC_RM_MASK)
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{
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/* ROUND is not a valid rounding mode. */
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return 1;
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}
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__asm__ volatile ("srnm 0(%0)"
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:
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: "a" (round));
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return 0;
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}
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libm_hidden_def (fesetround)
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