1 /* Software floating-point emulation: floating point extension.
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 "local-soft-fp.h"
20 #include "double.h"
21
22 /* Should never actually be used, since we're extending, but needed
23 for linkage. */
24 #undef FP_ROUNDMODE
25 #define FP_ROUNDMODE FP_RND_ZERO
26
27 void
_OtsConvertFloatTX(double a)28 _OtsConvertFloatTX(double a)
29 {
30 FP_DECL_EX;
31 FP_DECL_D(A);
32 FP_DECL_Q(C);
33 AXP_DECL_RETURN_Q(c);
34
35 FP_UNPACK_RAW_D(A, a);
36 #if _FP_W_TYPE_SIZE < 64
37 FP_EXTEND(Q,D,4,2,C,A);
38 #else
39 FP_EXTEND(Q,D,2,1,C,A);
40 #endif
41 AXP_PACK_RAW_Q(c, C);
42 FP_HANDLE_EXCEPTIONS;
43
44 AXP_RETURN_Q(c);
45 }
46