From 9a81430bf923de1145cbf52d5f1efe0bdce68e5b Mon Sep 17 00:00:00 2001 From: Andreas Schwab Date: Wed, 16 Aug 2000 15:08:45 +0000 Subject: * sysdeps/m68k/fpu/fegetexcept.c: New file. * sysdeps/m68k/fpu/fedisblxcpt.c: New file. * sysdeps/m68k/fpu/feenablxcpt.c: New file. 2000-08-16 Andreas Schwab * sysdeps/m68k/fpu/fegetexcept.c: New file. * sysdeps/m68k/fpu/fedisblxcpt.c: New file. * sysdeps/m68k/fpu/feenablxcpt.c: New file. --- sysdeps/m68k/fpu/feenablxcpt.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 sysdeps/m68k/fpu/feenablxcpt.c (limited to 'sysdeps/m68k/fpu/feenablxcpt.c') diff --git a/sysdeps/m68k/fpu/feenablxcpt.c b/sysdeps/m68k/fpu/feenablxcpt.c new file mode 100644 index 0000000000..7be0705213 --- /dev/null +++ b/sysdeps/m68k/fpu/feenablxcpt.c @@ -0,0 +1,39 @@ +/* Enable floating-point exceptions. + Copyright (C) 2000 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Schwab , 2000. + + 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 + +int +feenableexcept (int excepts) +{ + unsigned int new_exc, old_exc; + + /* Get the current control register contents. */ + __asm__ ("fmove%.l %!,%0" : "=dm" (new_exc)); + + old_exc = (new_exc >> 6) & FE_ALL_EXCEPT; + + excepts &= FE_ALL_EXCEPT; + + new_exc |= excepts << 6; + __asm__ ("fmove%.l %0,%!" : : "dm" (new_exc)); + + return old_exc; +} -- cgit 1.4.1