From fec403c593168e63ad7e6414f6e8df8ab11a7d8f Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 27 Sep 2001 05:25:55 +0000 Subject: Finish syncing up arm --- libc/sysdeps/linux/arm/bits/fenv.h | 58 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) create mode 100644 libc/sysdeps/linux/arm/bits/fenv.h (limited to 'libc/sysdeps/linux/arm/bits/fenv.h') diff --git a/libc/sysdeps/linux/arm/bits/fenv.h b/libc/sysdeps/linux/arm/bits/fenv.h new file mode 100644 index 000000000..7bd242385 --- /dev/null +++ b/libc/sysdeps/linux/arm/bits/fenv.h @@ -0,0 +1,58 @@ +/* Copyright (C) 1997, 1998, 1999 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _FENV_H +# error "Never use directly; include instead." +#endif + +/* Define bits representing exceptions in the FPU status word. */ +enum + { + FE_INVALID = 1, +#define FE_INVALID FE_INVALID + FE_DIVBYZERO = 2, +#define FE_DIVBYZERO FE_DIVBYZERO + FE_OVERFLOW = 4, +#define FE_OVERFLOW FE_OVERFLOW + FE_UNDERFLOW = 8, +#define FE_UNDERFLOW FE_UNDERFLOW + }; + +/* Amount to shift by to convert an exception to a mask bit. */ +#define FE_EXCEPT_SHIFT 16 + +/* All supported exceptions. */ +#define FE_ALL_EXCEPT \ + (FE_INVALID | FE_DIVBYZERO | FE_OVERFLOW | FE_UNDERFLOW) + +/* The ARM FPU basically only supports round-to-nearest. Other rounding + modes exist, but you have to encode them in the actual instruction. */ +#define FE_TONEAREST 0 + +/* Type representing exception flags. */ +typedef unsigned long int fexcept_t; + +/* Type representing floating-point environment. */ +typedef struct + { + unsigned long int __cw; + } +fenv_t; + +/* If the default argument is used we use this value. */ +#define FE_DFL_ENV ((fenv_t *) -1l) -- cgit v1.2.3