38 lines
1.1 KiB
ArmAsm
38 lines
1.1 KiB
ArmAsm
|
/* Truncate float value.
|
||
|
|
Copyright (C) 1997-2022 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
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 <machine/asm.h>
|
||
|
|
#include <libm-alias-float.h>
|
||
|
|
|
||
|
|
ENTRY(__truncf)
|
||
|
|
flds 4(%esp)
|
||
|
|
subl $32, %esp
|
||
|
|
cfi_adjust_cfa_offset (32)
|
||
|
|
fnstenv 4(%esp)
|
||
|
|
movl $0xc00, %edx
|
||
|
|
orl 4(%esp), %edx
|
||
|
|
movl %edx, (%esp)
|
||
|
|
fldcw (%esp)
|
||
|
|
frndint
|
||
|
|
fldenv 4(%esp)
|
||
|
|
addl $32, %esp
|
||
|
|
cfi_adjust_cfa_offset (-32)
|
||
|
|
ret
|
||
|
|
END(__truncf)
|
||
|
|
libm_alias_float (__trunc, trunc)
|