1 /* Software floating-point emulation.
2 Return (long)(*a)
3 Copyright (C) 1997-2017 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5 Contributed by Richard Henderson (rth@cygnus.com) and
6 Jakub Jelinek (jj@ultra.linux.cz).
7
8 The GNU C Library is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
12
13 The GNU C Library is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
17
18 You should have received a copy of the GNU Lesser General Public
19 License along with the GNU C Library; if not, see
20 <http://www.gnu.org/licenses/>. */
21
22 #define FP_ROUNDMODE FP_RND_ZERO
23 #include "soft-fp.h"
24 #include "quad.h"
25
_Qp_qtox(const long double * a)26 long _Qp_qtox(const long double *a)
27 {
28 FP_DECL_EX;
29 FP_DECL_Q(A);
30 unsigned long r;
31
32 FP_INIT_ROUNDMODE;
33 FP_UNPACK_RAW_QP(A, a);
34 FP_TO_INT_Q(r, A, 64, 1);
35 QP_HANDLE_EXCEPTIONS(
36 long rx;
37 __asm (
38 " ldd [%1], %%f52\n"
39 " ldd [%1+8], %%f54\n"
40 " fqtox %%f52, %%f60\n"
41 " std %%f60, [%0]\n"
42 " " : : "r" (&rx), "r" (a) : QP_CLOBBER);
43 r = rx);
44
45 return r;
46 }
47