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author | Carlos O'Donell <carlos@systemhalted.org> | 2014-04-29 03:08:48 -0400 |
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committer | Carlos O'Donell <carlos@systemhalted.org> | 2014-04-29 04:20:39 -0400 |
commit | 5abebba403181de898bbea4ee1bcce5f088c663b (patch) | |
tree | 0c4a8eac85e1f2db87621b524bfcbdeb24c2c8f9 /sysdeps/hppa/fpu/fsetexcptflg.c | |
parent | 4e4a58f4ee45cea6f3083af8f12d3834bb999555 (diff) | |
download | glibc-5abebba403181de898bbea4ee1bcce5f088c663b.zip glibc-5abebba403181de898bbea4ee1bcce5f088c663b.tar.gz glibc-5abebba403181de898bbea4ee1bcce5f088c663b.tar.bz2 |
Relocate hppa from ports to libc.
Diffstat (limited to 'sysdeps/hppa/fpu/fsetexcptflg.c')
-rw-r--r-- | sysdeps/hppa/fpu/fsetexcptflg.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/hppa/fpu/fsetexcptflg.c b/sysdeps/hppa/fpu/fsetexcptflg.c new file mode 100644 index 0000000..246b66f --- /dev/null +++ b/sysdeps/hppa/fpu/fsetexcptflg.c @@ -0,0 +1,37 @@ +/* Set floating-point environment exception handling. + Copyright (C) 1997-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by David Huggins-Daines <dhd@debian.org>, 2000 + + 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.h> +#include <math.h> + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ + union { unsigned long long l; unsigned int sw[2]; } s; + + /* Get the current status word. */ + __asm__ ("fstd %%fr0,0(%1)" : "=m" (s.l) : "r" (&s.l) : "%r0"); + /* Install new raised trap bits */ + s.sw[0] |= (*flagp & excepts & FE_ALL_EXCEPT) << 27; + /* Store the new status word. */ + __asm__ ("fldd 0(%0),%%fr0" : : "r" (&s.l), "m" (s.l) : "%r0"); + + /* Success. */ + return 0; +} |