From d265c8337f3117f1e6755f4eec2aa6f2015bd3a4 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 25 May 1999 11:58:59 +0000 Subject: Update. 1999-05-24 Jakub Jelinek * sysdeps/sparc/bits/wordsize.h: New file. * sysdeps/sparc/bits/fenv.h: New file. * sysdeps/sparc/fpu_control.h: New file. * sysdeps/sparc/gmp-mparam.h: New file. * sysdeps/sparc/sparc32/fpu/bits/fenv.h: Remove. * sysdeps/sparc/sparc32/fpu/fpu_control.h: Remove. * sysdeps/sparc/sparc64/bits/wordsize.h: Remove. * sysdeps/sparc/sparc64/fpu/bits/fenv.h: Remove. * sysdeps/sparc/sparc64/fpu/fpu_control.h: Remove. * sysdeps/sparc/sparc64/gmp-mparam.h: Remove. * sysdeps/unix/sysv/linux/sparc/bits/setjmp.h: New file. * sysdeps/unix/sysv/linux/sparc/bits/types.h: New file. * sysdeps/unix/sysv/linux/sparc/bits/statfs.h: New file. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/sys/ucontext.h: Remove. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/setjmp.h: Remove. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/types.h: Remove. * sysdeps/unix/sysv/linux/sparc/sparc64/bits/statfs.h: Remove. * sysdeps/unix/sysv/linux/sparc/sparc64/sys/ucontext.h: Remove. 1999-05-19 Jakub Jelinek 1999-05-19 Jakub Jelinek 1999-05-19 Jakub Jelinek --- sysdeps/sparc/fpu/bits/fenv.h | 85 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 sysdeps/sparc/fpu/bits/fenv.h (limited to 'sysdeps/sparc/fpu/bits/fenv.h') diff --git a/sysdeps/sparc/fpu/bits/fenv.h b/sysdeps/sparc/fpu/bits/fenv.h new file mode 100644 index 0000000000..d30fe22c46 --- /dev/null +++ b/sysdeps/sparc/fpu/bits/fenv.h @@ -0,0 +1,85 @@ +/* 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 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. */ + +#ifndef _FENV_H +# error "Never use directly; include instead." +#endif + +#include + + +/* Define bits representing the exception. We use the bit positions + of the appropriate accrued exception bits from the FSR. */ +enum + { + FE_INVALID = (1 << 9), +#define FE_INVALID FE_INVALID + FE_OVERFLOW = (1 << 8), +#define FE_OVERFLOW FE_OVERFLOW + FE_UNDERFLOW = (1 << 7), +#define FE_UNDERFLOW FE_UNDERFLOW + FE_DIVBYZERO = (1 << 6), +#define FE_DIVBYZERO FE_DIVBYZERO + FE_INEXACT = (1 << 5) +#define FE_INEXACT FE_INEXACT + }; + +#define FE_ALL_EXCEPT \ + (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID) + +/* The Sparc FPU supports all of the four defined rounding modes. We + use again the bit positions in the FPU control word as the values + for the appropriate macros. */ +enum + { + FE_TONEAREST = (0U << 30), +#define FE_TONEAREST FE_TONEAREST + FE_TOWARDZERO = (1U << 30), +#define FE_TOWARDZERO FE_TOWARDZERO + FE_UPWARD = (2U << 30), +#define FE_UPWARD FE_UPWARD + FE_DOWNWARD = (3U << 30) +#define FE_DOWNWARD FE_DOWNWARD + }; + +#define __FE_ROUND_MASK (3U << 30) + + +/* Type representing exception flags. */ +typedef unsigned long int fexcept_t; + + +/* Type representing floating-point environment. */ +typedef unsigned long int fenv_t; + +/* If the default argument is used we use this value. */ +#define FE_DFL_ENV ((fenv_t *) -1) + +#ifdef __USE_GNU +/* Floating-point environment where none of the exception is masked. */ +# define FE_NOMASK_ENV ((fenv_t *) -2) +#endif + +/* For internal use only: access the fp state register. */ +#if __WORDSIZE == 64 +# define __fenv_stfsr(X) __asm__ ("stx %%fsr,%0" : "=m" (X)) +# define __fenv_ldfsr(X) __asm__ __volatile__ ("ldx %0,%%fsr" : : "m" (X)) +#else +# define __fenv_stfsr(X) __asm__ ("st %%fsr,%0" : "=m" (X)) +# define __fenv_ldfsr(X) __asm__ __volatile__ ("ld %0,%%fsr" : : "m" (X)) +#endif -- cgit 1.4.1