about summary refs log tree commit diff
path: root/soft-fp/sysdeps/sparc/sparc32/q_qtod.c
blob: 92874502ea918251008aafb2d02aefe8e70e39c2 (plain) (blame)
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
44
45
/* Software floating-point emulation.
   Return (double)a
   Copyright (C) 1997,1999 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Richard Henderson (rth@cygnus.com) and
		  Jakub Jelinek (jj@ultra.linux.cz).

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If
   not, write to the Free Software Foundation, Inc.,
   59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

#include "soft-fp.h"
#include "double.h"
#include "quad.h"

double _Q_qtod(const long double a)
{
  FP_DECL_EX;
  FP_DECL_Q(A);
  FP_DECL_D(R);
  double r;

  FP_INIT_ROUNDMODE;
  FP_UNPACK_Q(A, a);
#if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
  FP_CONV(D,Q,2,4,R,A);
#else
  FP_CONV(D,Q,1,2,R,A);
#endif
  FP_PACK_D(r, R);
  FP_HANDLE_EXCEPTIONS;

  return r;
}