OpenSolaris Launch

1 files changed, 49 insertions, 0 deletions

diff --git a/usr/src/lib/libc/port/fp/floatdidf.c b/usr/src/lib/libc/port/fp/floatdidf.c
new file mode 100644
index 0000000000..deda66554b
--- /dev/null
+++ b/usr/src/lib/libc/port/fp/floatdidf.c
@@ -0,0 +1,49 @@
+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include "quadint.h"
+
+#pragma weak __floatdidf = ___floatdidf
+
+/*
+ * Convert a longlong_t to a double-precision floating point value.
+ */
+double
+___floatdidf(longlong_t a)
+{
+	union uu aa;
+	double d;
+
+	aa.q = a;
+	d = aa.sl[H];
+	d *= (1 << HALF_BITS);
+	d *= (1 << HALF_BITS);
+	d += aa.ul[L];
+
+	return (d);
+}