From 528be9fe8e08d78481d681c9ce23af6ba60ed2f5 Mon Sep 17 00:00:00 2001 From: Andreas Jaeger Date: Mon, 21 Aug 2000 17:06:46 +0000 Subject: Add sys/procfs.h. --- sysdeps/s390/fpu/fsetexcptflg.c | 46 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 sysdeps/s390/fpu/fsetexcptflg.c (limited to 'sysdeps/s390/fpu/fsetexcptflg.c') diff --git a/sysdeps/s390/fpu/fsetexcptflg.c b/sysdeps/s390/fpu/fsetexcptflg.c new file mode 100644 index 0000000000..fe3a595cac --- /dev/null +++ b/sysdeps/s390/fpu/fsetexcptflg.c @@ -0,0 +1,46 @@ +/* Set floating-point environment exception handling. + Copyright (C) 2000 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 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 +#include +#include + +int +fesetexceptflag (const fexcept_t *flagp, int excepts) +{ + fexcept_t temp,newexcepts; + + /* Get the current environment. We have to do this since we cannot + separately set the status word. */ + _FPU_GETCW (temp); + /* Install the new exception bits in the Accrued Exception Byte. */ + excepts = excepts & FE_ALL_EXCEPT; + newexcepts = (excepts << FPC_DXC_SHIFT) | (excepts << FPC_FLAGS_SHIFT); + temp &= ~newexcepts; + temp |= *flagp & newexcepts; + + /* Store the new status word (along with the rest of the environment. + Possibly new exceptions are set but they won't get executed unless + the next floating-point instruction. */ + _FPU_SETCW (temp); + + /* Success. */ + return 0; +} -- cgit 1.4.1