1 /* Software floating-point emulation.
2 Return a converted to IEEE quad
3 Copyright (C) 2007 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Uros Bizjak (ubizjak@gmail.com).
6
7 The GNU C Library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Lesser General Public
9 License as published by the Free Software Foundation; either
10 version 2.1 of the License, or (at your option) any later version.
11
12 In addition to the permissions in the GNU Lesser General Public
13 License, the Free Software Foundation gives you unlimited
14 permission to link the compiled version of this file into
15 combinations with other programs, and to distribute those
16 combinations without any restriction coming from the use of this
17 file. (The Lesser General Public License restrictions do apply in
18 other respects; for example, they cover modification of the file,
19 and distribution when not linked into a combine executable.)
20
21 The GNU C Library is distributed in the hope that it will be useful,
22 but WITHOUT ANY WARRANTY; without even the implied warranty of
23 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 Lesser General Public License for more details.
25
26 You should have received a copy of the GNU Lesser General Public
27 License along with the GNU C Library; if not, write to the Free
28 Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
29 MA 02110-1301, USA. */
30
31 #include "soft-fp.h"
32 #include "extended.h"
33 #include "quad.h"
34
__extendxftf2(XFtype a)35 TFtype __extendxftf2(XFtype a)
36 {
37 FP_DECL_EX;
38 FP_DECL_E(A);
39 FP_DECL_Q(R);
40 TFtype r;
41
42 FP_INIT_ROUNDMODE;
43 FP_UNPACK_RAW_E(A, a);
44 #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q
45 FP_EXTEND(Q,E,4,4,R,A);
46 #else
47 FP_EXTEND(Q,E,2,2,R,A);
48 #endif
49 FP_PACK_RAW_Q(r, R);
50 FP_HANDLE_EXCEPTIONS;
51
52 return r;
53 }
54