1/* Truncate long double value.
2   Copyright (C) 1997-2022 Free Software Foundation, Inc.
3   This file is part of the GNU C Library.
4
5   The GNU C Library is free software; you can redistribute it and/or
6   modify it under the terms of the GNU Lesser General Public
7   License as published by the Free Software Foundation; either
8   version 2.1 of the License, or (at your option) any later version.
9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#include <libm-alias-ldouble.h>
20#include <machine/asm.h>
21
22ENTRY(__truncl)
23	fldt	8(%rsp)
24	fnstenv	-28(%rsp)
25	movl	$0xc00, %edx
26	orl	-28(%rsp), %edx
27	movl	%edx, -32(%rsp)
28	fldcw	-32(%rsp)
29	frndint
30	fnstsw
31	andl	$0x1, %eax
32	orl	%eax, -24(%rsp)
33	fldenv	-28(%rsp)
34	ret
35END(__truncl)
36libm_alias_ldouble (__trunc, trunc)
37