diff options
Diffstat (limited to 'sysdeps/generic')
-rw-r--r-- | sysdeps/generic/fpu_control.c | 24 | ||||
-rw-r--r-- | sysdeps/generic/setfpucw.c | 33 |
2 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/generic/fpu_control.c b/sysdeps/generic/fpu_control.c new file mode 100644 index 0000000000..4a47e626a8 --- /dev/null +++ b/sysdeps/generic/fpu_control.c @@ -0,0 +1,24 @@ +/* Default FPU control word initialization. +Copyright (C) 1996 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 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <fpu_control.h> + +/* This module defines `__fpu_control' with the default value. */ + +fpu_control_t __fpu_control = _FPU_DEFAULT; diff --git a/sysdeps/generic/setfpucw.c b/sysdeps/generic/setfpucw.c new file mode 100644 index 0000000000..7b09a68b55 --- /dev/null +++ b/sysdeps/generic/setfpucw.c @@ -0,0 +1,33 @@ +/* Set the FPU control word. +Copyright (C) 1996 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 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 "fpu_control.h" + +void +__setfpucw (fpu_control_t set) +{ + fpu_control_t cw; + + /* Fetch the current control word. */ + _FPU_GETCW (cw); + + /* Preserve the reserved bits, and set the rest as the user + specified (or the default, if the user gave zero). */ + _FPU_SETCW ((cw & _FPU_RESERVED) | (set & ~_FPU_RESERVED)); +} |