1 /* Software floating-point emulation.
2 Return (long)(*a)
3 Copyright (C) 1997-2022 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20 #define FP_ROUNDMODE FP_RND_ZERO
21 #include "soft-fp.h"
22 #include "quad.h"
23
_Qp_qtox(const long double * a)24 long _Qp_qtox(const long double *a)
25 {
26 FP_DECL_EX;
27 FP_DECL_Q(A);
28 unsigned long r;
29
30 FP_INIT_ROUNDMODE;
31 FP_UNPACK_RAW_QP(A, a);
32 FP_TO_INT_Q(r, A, 64, 1);
33 QP_HANDLE_EXCEPTIONS(
34 long rx;
35 __asm (
36 " ldd [%1], %%f52\n"
37 " ldd [%1+8], %%f54\n"
38 " fqtox %%f52, %%f60\n"
39 " std %%f60, [%0]\n"
40 " " : : "r" (&rx), "r" (a) : QP_CLOBBER);
41 r = rx);
42
43 return r;
44 }
45