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diff --git a/device/lib/pic/libm/floorf.c b/device/lib/pic/libm/floorf.c
new file mode 100644
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--- /dev/null
+++ b/device/lib/pic/libm/floorf.c
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+/*  floorf.c: Returns the integer smaller or equal than x
+
+    Copyright (C) 2001, 2002  Jesus Calvino-Fraga, jesusc@ieee.org 
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Lesser General Public
+    License as published by the Free Software Foundation; either
+    version 2.1 of the License, or (at your option) any later version.
+
+    This 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
+    Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA */
+
+/* Version 1.0 - Initial release */
+
+/*
+** $Id: floorf.c 3654 2005-01-24 10:38:53Z vrokas $
+*/
+
+#include <math.h>
+
+float floorf (float x) _MATH_REENTRANT
+{
+    long r;
+    r=x;
+    if (r<=0)
+        return (r+((r>x)?-1:0));
+    else
+        return r;
+}