diff options
Diffstat (limited to 'libc/sysdeps/linux/sparc/bits/fenv.h')
| -rw-r--r-- | libc/sysdeps/linux/sparc/bits/fenv.h | 60 |
1 files changed, 37 insertions, 23 deletions
diff --git a/libc/sysdeps/linux/sparc/bits/fenv.h b/libc/sysdeps/linux/sparc/bits/fenv.h index 79ab8cefa..83b32cc51 100644 --- a/libc/sysdeps/linux/sparc/bits/fenv.h +++ b/libc/sysdeps/linux/sparc/bits/fenv.h @@ -1,4 +1,4 @@ -/* Copyright (C) 1997, 1998, 1999, 2000 Free Software Foundation, Inc. +/* Copyright (C) 1997-2025 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -12,26 +12,34 @@ 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/>. */ + <https://www.gnu.org/licenses/>. */ #ifndef _FENV_H # error "Never use <bits/fenv.h> directly; include <fenv.h> instead." #endif +#include <bits/wordsize.h> + + /* 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 + FE_INVALID = +#define FE_INVALID (1 << 9) + FE_INVALID, + FE_OVERFLOW = +#define FE_OVERFLOW (1 << 8) + FE_OVERFLOW, + FE_UNDERFLOW = +#define FE_UNDERFLOW (1 << 7) + FE_UNDERFLOW, + FE_DIVBYZERO = +#define FE_DIVBYZERO (1 << 6) + FE_DIVBYZERO, + FE_INEXACT = +#define FE_INEXACT (1 << 5) + FE_INEXACT }; #define FE_ALL_EXCEPT \ @@ -42,14 +50,18 @@ enum 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 + FE_TONEAREST = +#define FE_TONEAREST (0 << 30) + FE_TONEAREST, + FE_TOWARDZERO = +#define FE_TOWARDZERO (1 << 30) + FE_TOWARDZERO, + FE_UPWARD = +#define FE_UPWARD (-0x7fffffff - 1) /* (2 << 30) */ + FE_UPWARD, + FE_DOWNWARD = +#define FE_DOWNWARD (-0x40000000) /* (3 << 30) */ + FE_DOWNWARD }; #define __FE_ROUND_MASK (3U << 30) @@ -70,6 +82,8 @@ typedef unsigned long int fenv_t; # define FE_NOMASK_ENV ((const fenv_t *) -2) #endif -/* For internal use only: access the fp state register. */ -#define __fenv_stfsr(X) __asm__ ("st %%fsr,%0" : "=m" (X)) -#define __fenv_ldfsr(X) __asm__ __volatile__ ("ld %0,%%fsr" : : "m" (X)) +/* Type representing floating-point control modes. */ +typedef unsigned long int femode_t; + +/* Default floating-point control modes. */ +# define FE_DFL_MODE ((const femode_t *) -1L) |