diff options
| -rw-r--r-- | ChangeLog | 3 | ||||
| -rw-r--r-- | sysdeps/m68k/fpu/isinfl.c | 4 | ||||
| -rw-r--r-- | sysdeps/m68k/fpu/isnanl.c | 4 | ||||
| -rw-r--r-- | sysdeps/m68k/isinfl.c | 45 | ||||
| -rw-r--r-- | sysdeps/m68k/isnanl.c | 41 |
5 files changed, 97 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index b9ab9a4a93..1775010a3a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ Sat Feb 10 13:09:03 1996 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> + * sysdeps/m68k/fpu/isinfl.c, sysdeps/m68k/fpu/isnanl.c, + sysdeps/m68k/isinfl.c, sysdeps/m68k/isnanl.c: New files. + * sysdeps/unix/sysv/linux/sys/mman.h: Define MAP_ANON and MAP_FILE if not already defined. diff --git a/sysdeps/m68k/fpu/isinfl.c b/sysdeps/m68k/fpu/isinfl.c new file mode 100644 index 0000000000..f3eeaa2b30 --- /dev/null +++ b/sysdeps/m68k/fpu/isinfl.c @@ -0,0 +1,4 @@ +#define FUNC __isinfl +#include <isinf.c> + +weak_alias (__isinfl, isinfl) diff --git a/sysdeps/m68k/fpu/isnanl.c b/sysdeps/m68k/fpu/isnanl.c new file mode 100644 index 0000000000..0f48a73fbc --- /dev/null +++ b/sysdeps/m68k/fpu/isnanl.c @@ -0,0 +1,4 @@ +#define FUNC __isnanl +#include <isinf.c> + +weak_alias (__isnanl, isnanl) diff --git a/sysdeps/m68k/isinfl.c b/sysdeps/m68k/isinfl.c new file mode 100644 index 0000000000..1b06d47d52 --- /dev/null +++ b/sysdeps/m68k/isinfl.c @@ -0,0 +1,45 @@ +/* Copyright (C) 1991, 1992, 1995 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <math.h> +#include "ieee754.h" + +#undef __isinfl +#undef isinfl + + +/* Return 0 if VALUE is finite or NaN, +1 if it + is +Infinity, -1 if it is -Infinity. */ +int +__isinfl (long double value) +{ + union ieee854_long_double u; + + u.d = value; + + /* An IEEE 854 infinity has an exponent with the + maximum possible value and a zero mantissa. + In Motorola's interpretation the integer bit is ignored. */ + if ((u.ieee.exponent & 0x7fff) == 0x7fff && + (u.ieee.mantissa0 & 0x7fffffff) == 0 && u.ieee.mantissa1 == 0) + return u.ieee.negative ? -1 : 1; + + return 0; +} + +weak_alias (__isinfl, isinfl); diff --git a/sysdeps/m68k/isnanl.c b/sysdeps/m68k/isnanl.c new file mode 100644 index 0000000000..38a9616593 --- /dev/null +++ b/sysdeps/m68k/isnanl.c @@ -0,0 +1,41 @@ +/* Copyright (C) 1991, 1992, 1995 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <math.h> +#include "ieee754.h" + +#undef __isnanl +#undef isnanl + + +/* Return nonzero if VALUE is not a number. */ +int +__isnanl (long double value) +{ + union ieee854_long_double u; + + u.d = value; + + /* IEEE 854 NaN's have the maximum possible + exponent and a nonzero mantissa. In Motorola's + interpretation the integer bit is ignored. */ + return ((u.ieee.exponent & 0x7fff) == 0x7fff && + ((u.ieee.mantissa0 & 0x7fffffff) != 0 || u.ieee.mantissa1 != 0)); +} + +weak_alias (__isnanl, isnanl); |