[src/trunk]: src/lib/libc/gen Resurrect this for MIPS softfloat.

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/6cf0e0f10e78
branches:  trunk
changeset: 757666:6cf0e0f10e78
user:      matt <matt%NetBSD.org@localhost>
date:      Fri Sep 10 16:32:35 2010 +0000

description:
Resurrect this for MIPS softfloat.

diffstat:

 lib/libc/gen/fabs_ieee754.c |  54 +++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 54 insertions(+), 0 deletions(-)

diffs (58 lines):

diff -r f1a26ae7bb6c -r 6cf0e0f10e78 lib/libc/gen/fabs_ieee754.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/lib/libc/gen/fabs_ieee754.c       Fri Sep 10 16:32:35 2010 +0000
@@ -0,0 +1,54 @@
+/*     $NetBSD: fabs_ieee754.c,v 1.2 2010/09/10 16:32:35 matt Exp $    */
+
+/*-
+ * Copyright (c) 2003 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Klaus Klein.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: fabs_ieee754.c,v 1.2 2010/09/10 16:32:35 matt Exp $");
+#endif
+
+#include <machine/ieee.h>
+#include <math.h>
+
+/*
+ * 7.12.3.6 fabs - return the absolute value of the argument
+ *          IEEE 754 double-precision version
+ */
+double
+fabs(double x)
+{
+       union ieee_double_u u;
+
+       u.dblu_d = x;
+
+       u.dblu_dbl.dbl_sign = 0;
+
+       return u.dblu_d;
+}