1 /* Store current floating-point environment.
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 <fenv.h>
20
21 int
__fegetenv(fenv_t * envp)22 __fegetenv (fenv_t *envp)
23 {
24 #ifdef __mcoldfire__
25 __asm__ ("fmove%.l %/fpcr,%0" : "=dm" (envp->__control_register));
26 __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (envp->__status_register));
27 __asm__ ("fmove%.l %/fpiar,%0" : "=dm" (envp->__instruction_address));
28 #else
29 __asm__ ("fmovem%.l %/fpcr/%/fpsr/%/fpiar,%0" : "=m" (*envp));
30 #endif
31
32 /* Success. */
33 return 0;
34 }
35
36 #include <shlib-compat.h>
37 #if SHLIB_COMPAT (libm, GLIBC_2_1, GLIBC_2_2)
38 strong_alias (__fegetenv, __old_fegetenv)
39 compat_symbol (libm, __old_fegetenv, fegetenv, GLIBC_2_1);
40 #endif
41
42 libm_hidden_def (__fegetenv)
43 libm_hidden_ver (__fegetenv, fegetenv)
44 versioned_symbol (libm, __fegetenv, fegetenv, GLIBC_2_2);
45