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/m68k/fpu/isinfl.c, sysdeps/m68k/fpu/isnanl.c,
	sysdeps/m68k/isinfl.c, sysdeps/m68k/isnanl.c: New files.

4 files changed, 94 insertions, 0 deletions

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);