diff options
Diffstat (limited to 'sysdeps/alpha/fpu/fegetmode.c')
-rw-r--r-- | sysdeps/alpha/fpu/fegetmode.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/sysdeps/alpha/fpu/fegetmode.c b/sysdeps/alpha/fpu/fegetmode.c new file mode 100644 index 0000000000..f3a6edee96 --- /dev/null +++ b/sysdeps/alpha/fpu/fegetmode.c @@ -0,0 +1,33 @@ +/* Store current floating-point control modes. Alpha version. + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <fenv_libc.h> + +int +fegetmode (femode_t *modep) +{ + unsigned long int fpcr; + unsigned long int swcr; + + /* As in fegetenv. */ + swcr = __ieee_get_fp_control (); + __asm__ __volatile__ ("mf_fpcr %0" : "=f" (fpcr)); + *modep = ((fpcr & FPCR_ROUND_MASK) | (swcr & SWCR_ALL_MASK)); + + return 0; +} |