diff --git a/libm/i387/s_significandf.S b/libm/i387/s_significandf.S
new file mode 100644
index 0000000..6096ef0
--- /dev/null
+++ b/libm/i387/s_significandf.S
@@ -0,0 +1,15 @@
+/*
+ * Written by J.T. Conklin <jtc@netbsd.org>.
+ * Public domain.
+ */
+
+#include <machine/asm.h>
+
+__FBSDID("$FreeBSD: src/lib/msun/i387/s_significandf.S,v 1.1 2005/01/13 18:58:25 das Exp $");
+/* RCSID("$NetBSD: s_significandf.S,v 1.3 1995/05/09 00:24:07 jtc Exp $") */
+
+ENTRY(significandf)
+	flds	4(%esp)
+	fxtract
+	fstp	%st(1)
+	ret