diff options
Diffstat (limited to 'REORG.TODO/sysdeps/s390/fpu/ftestexcept.c')
| -rw-r--r-- | REORG.TODO/sysdeps/s390/fpu/ftestexcept.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/s390/fpu/ftestexcept.c b/REORG.TODO/sysdeps/s390/fpu/ftestexcept.c new file mode 100644 index 0000000000..8c56f78a40 --- /dev/null +++ b/REORG.TODO/sysdeps/s390/fpu/ftestexcept.c @@ -0,0 +1,39 @@ +/* Test exception in current environment. + Copyright (C) 2000-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Denis Joseph Barrow (djbarrow@de.ibm.com). + + 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_libc.h> +#include <fpu_control.h> + +int +fetestexcept (int excepts) +{ + fexcept_t temp, res; + + /* Get current exceptions. */ + _FPU_GETCW (temp); + res = temp >> FPC_FLAGS_SHIFT; + if ((temp & FPC_NOT_FPU_EXCEPTION) == 0) + /* Bits 6, 7 of dxc-byte are zero, + thus bits 0-5 of dxc-byte correspond to the flag-bits. + Evaluate flags and last dxc-exception-code. */ + res |= temp >> FPC_DXC_SHIFT; + + return res & excepts & FE_ALL_EXCEPT; +} +libm_hidden_def (fetestexcept) |