Index: boot/generic/src/memstr.c
===================================================================
--- boot/generic/src/memstr.c	(revision 9ded977c87c346e6072b96a66a580c64f16342bb)
+++ boot/generic/src/memstr.c	(revision 9ded977c87c346e6072b96a66a580c64f16342bb)
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2010 Jiri Svoboda
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - 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.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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 <memstr.h>
+#include <typedefs.h>
+
+/** Copy block of memory.
+ *
+ * Copy cnt bytes from src address to dst address.The source and destination
+ * memory areas cannot overlap.
+ *
+ * @param src		Source address to copy from.
+ * @param dst		Destination address to copy to.
+ * @param cnt		Number of bytes to copy.
+ *
+ * @return		Destination address.
+ */
+void *memcpy(void *dst, const void *src, size_t cnt)
+{
+	size_t i;
+
+	for (i = 0; i < cnt; i++)
+		((uint8_t *) dst)[i] = ((uint8_t *) src)[i];
+
+	return dst;
+}
+
+/** @}
+ */