1 /* Software floating-point emulation: floating point truncation.
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 double
_OtsConvertFloatXT(long al,long ah,long _round)23 _OtsConvertFloatXT (long al, long ah, long _round)
24 {
25 FP_DECL_EX;
26 FP_DECL_Q(A);
27 FP_DECL_D(R);
28 double r;
29
30 FP_INIT_ROUNDMODE;
31 AXP_UNPACK_SEMIRAW_Q(A, a);
32 #if _FP_W_TYPE_SIZE < 64
33 FP_TRUNC(D,Q,2,4,R,A);
34 #else
35 FP_TRUNC(D,Q,1,2,R,A);
36 #endif
37 FP_PACK_SEMIRAW_D(r, R);
38 FP_HANDLE_EXCEPTIONS;
39
40 return r;
41 }
42