diff options
Diffstat (limited to 'sysdeps/s390')
| -rw-r--r-- | sysdeps/s390/fpu/fedisblxcpt.c | 35 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/feenablxcpt.c | 35 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/fegetexcept.c | 31 | ||||
| -rw-r--r-- | sysdeps/s390/fpu/fenv_libc.h | 15 |
4 files changed, 110 insertions, 6 deletions
diff --git a/sysdeps/s390/fpu/fedisblxcpt.c b/sysdeps/s390/fpu/fedisblxcpt.c new file mode 100644 index 0000000000..b334c292f1 --- /dev/null +++ b/sysdeps/s390/fpu/fedisblxcpt.c @@ -0,0 +1,35 @@ +/* Disable floating-point exceptions. + 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 <fenv_libc.h> +#include <fpu_control.h> + +int +fedisableexcept (int excepts) +{ + fexcept_t temp, old_exc, new_flags; + + _FPU_GETCW (temp); + old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT; + new_flags = (temp & (~((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT))); + _FPU_SETCW (new_flags); + + return old_exc; +} diff --git a/sysdeps/s390/fpu/feenablxcpt.c b/sysdeps/s390/fpu/feenablxcpt.c new file mode 100644 index 0000000000..f2915d8abc --- /dev/null +++ b/sysdeps/s390/fpu/feenablxcpt.c @@ -0,0 +1,35 @@ +/* Enable floating-point exceptions. + 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 <fenv_libc.h> +#include <fpu_control.h> + +int +feenableexcept (int excepts) +{ + fexcept_t temp, old_exc, new_flags; + + _FPU_GETCW (temp); + old_exc = (temp & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT; + new_flags = (temp | ((excepts & FE_ALL_EXCEPT) << FPC_EXCEPTION_MASK_SHIFT)); + _FPU_SETCW (new_flags); + + return old_exc; +} diff --git a/sysdeps/s390/fpu/fegetexcept.c b/sysdeps/s390/fpu/fegetexcept.c new file mode 100644 index 0000000000..72fa24e74b --- /dev/null +++ b/sysdeps/s390/fpu/fegetexcept.c @@ -0,0 +1,31 @@ +/* Get enabled floating-point exceptions. + 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 <fenv_libc.h> +#include <fpu_control.h> + +int +fegetexcept (void) +{ + fexcept_t exc; + + _FPU_GETCW (exc); + return ((exc & FPC_EXCEPTION_MASK) >> FPC_EXCEPTION_MASK_SHIFT); +} diff --git a/sysdeps/s390/fpu/fenv_libc.h b/sysdeps/s390/fpu/fenv_libc.h index d4c7b3ea32..26308b198a 100644 --- a/sysdeps/s390/fpu/fenv_libc.h +++ b/sysdeps/s390/fpu/fenv_libc.h @@ -22,16 +22,19 @@ #include <fenv.h> -/* Definitions from asm/s390-regs-common.h that are needed in th glibc. */ +/* Definitions from asm/s390-regs-common.h that are needed in glibc. */ + -#define FPC_DXC_MASK 0x0000FF00 #define FPC_EXCEPTION_MASK 0xF8000000 #define FPC_FLAGS_MASK 0x00F80000 +#define FPC_DXC_MASK 0x0000FF00 #define FPC_RM_MASK 0x00000003 +#define FPC_VALID_MASK ((FPC_EXCEPTION_MASK|FPC_FLAGS_MASK| \ + FPC_DXC_MASK|FPC_RM_MASK)) -#define FPC_EXCEPTION_MASK_SHIFT 24 -#define FPC_FLAGS_SHIFT 16 -#define FPC_DXC_SHIFT 8 -#define FPC_NOT_FPU_EXCEPTION 0x300 +#define FPC_EXCEPTION_MASK_SHIFT 24 +#define FPC_FLAGS_SHIFT 16 +#define FPC_DXC_SHIFT 8 +#define FPC_NOT_FPU_EXCEPTION 0x300 #endif /* _FENV_LIBC_H */ |