1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* Software floating-point emulation.
(*c) = (long double)(a)
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 "soft-fp.h"
#include "double.h"
#include "quad.h"
void _Qp_dtoq(long double *c, const double a)
{
FP_DECL_EX;
FP_DECL_D(A);
FP_DECL_Q(C);
FP_INIT_ROUNDMODE;
FP_UNPACK_RAW_D(A, a);
#if _FP_W_TYPE_SIZE < 64
FP_EXTEND(Q,D,4,2,C,A);
#else
FP_EXTEND(Q,D,2,1,C,A);
#endif
FP_PACK_RAW_QP(c, C);
QP_HANDLE_EXCEPTIONS(__asm (
" fdtoq %1, %%f60\n"
" std %%f60, [%0]\n"
" std %%f62, [%0+8]\n"
" " : : "r" (c), "e" (a) : QP_CLOBBER));
}
|
