1 /* Install given floating-point control modes.  SH4 version.
2    Copyright (C) 2016-2021 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 #include <fpu_control.h>
21 
22 #define FPU_STATUS 0x3f07c
23 
24 int
fesetmode(const femode_t * modep)25 fesetmode (const femode_t *modep)
26 {
27   fpu_control_t fpscr;
28 
29   _FPU_GETCW (fpscr);
30   fpscr &= FPU_STATUS;
31   if (modep == FE_DFL_MODE)
32     fpscr |= _FPU_DEFAULT;
33   else
34     fpscr |= *modep & ~FPU_STATUS;
35   _FPU_SETCW (fpscr);
36 
37   return 0;
38 }
39