diff options
Diffstat (limited to 'sysdeps/m68k/fpu/feupdateenv.c')
-rw-r--r-- | sysdeps/m68k/fpu/feupdateenv.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sysdeps/m68k/fpu/feupdateenv.c b/sysdeps/m68k/fpu/feupdateenv.c new file mode 100644 index 0000000000..f5922b4de4 --- /dev/null +++ b/sysdeps/m68k/fpu/feupdateenv.c @@ -0,0 +1,39 @@ +/* Install given floating-point environment and raise exceptions. + Copyright (C) 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <fenv.h> + +void +feupdateenv (const fenv_t *envp) +{ + fexcept_t fpsr; + + /* Save current exceptions. */ + __asm__ ("fmove%.l %/fpsr,%0" : "=dm" (fpsr)); + fpsr &= FE_ALL_EXCEPT; + + /* Install new environment. */ + fesetenv (envp); + + /* Raise the saved exception. Incidently for us the implementation + defined format of the values in objects of type fexcept_t is the + same as the ones specified using the FE_* constants. */ + feraiseexcept ((int) fpsr); +} |