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author | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
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committer | Joseph Myers <joseph@codesourcery.com> | 2012-07-01 13:08:59 +0000 |
commit | e84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch) | |
tree | dff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/mips/fpu/fclrexcpt.c | |
parent | 75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff) | |
parent | e64ac02c24b43659048622714afdc92fedf561fa (diff) |
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/mips/fpu/fclrexcpt.c')
-rw-r--r-- | ports/sysdeps/mips/fpu/fclrexcpt.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/ports/sysdeps/mips/fpu/fclrexcpt.c b/ports/sysdeps/mips/fpu/fclrexcpt.c new file mode 100644 index 0000000000..f97d892605 --- /dev/null +++ b/ports/sysdeps/mips/fpu/fclrexcpt.c @@ -0,0 +1,46 @@ +/* Clear given exceptions in current floating-point environment. + Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Andreas Jaeger <aj@suse.de>, 1998. + + 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 <fenv_libc.h> +#include <fpu_control.h> + +int +feclearexcept (int excepts) +{ + int cw; + + /* Mask out unsupported bits/exceptions. */ + excepts &= FE_ALL_EXCEPT; + + /* Read the complete control word. */ + _FPU_GETCW (cw); + + /* Clear exception flag bits and cause bits. If the cause bit is not + cleared, the next CTC instruction (just below) will re-generate the + exception. */ + + cw &= ~(excepts | (excepts << CAUSE_SHIFT)); + + /* Put the new data in effect. */ + _FPU_SETCW (cw); + + /* Success. */ + return 0; +} |