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/* Truncate long double value.
Copyright (C) 1997-2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <libm-alias-ldouble.h>
#include <machine/asm.h>
ENTRY(__truncl)
fldt 8(%rsp)
fnstenv -28(%rsp)
movl $0xc00, %edx
orl -28(%rsp), %edx
movl %edx, -32(%rsp)
fldcw -32(%rsp)
frndint
fnstsw
andl $0x1, %eax
orl %eax, -24(%rsp)
fldenv -28(%rsp)
ret
END(__truncl)
libm_alias_ldouble (__trunc, trunc)
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