[fsbl] add fsbl for cv181x/cv180x

Change-Id: I6809bc5016d4bc148f62be2ed3f8e928ec111f19

fsbl/lib/BigDigits/t_bdQuickRandBits.c

@@ -0,0 +1,65 @@
+/* $Id: t_bdQuickRandBits.c $ */
+
+/***** BEGIN LICENSE BLOCK *****
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * Copyright (c) 2001-16 David Ireland, D.I. Management Services Pty Limited
+ * <http://www.di-mgt.com.au/bigdigits.html>. All rights reserved.
+ *
+ ***** END LICENSE BLOCK *****/
+/*
+ * Last updated:
+ * $Date: 2016-03-31 09:51:00 $
+ * $Revision: 2.6.1 $
+ * $Author: dai $
+ */
+
+/* 
+What is the difference between bdQuickRandBits and bdRandomBits?
+
+bdRandomBits() uses the "pretty-good" internal RNG and requires you to include bigdRand.h 
+and compile with bigdRand.c and bigdigitsRand.c. 
+You can be pretty sure that the numbers generated will pass all statistical tests for randomness.
+
+bdQuickRandBits() just needs the standard bigd.h include file and you do not need to
+add the modules bigdRand.c and bigdigitsRand.c to your project. 
+It uses the stdlib rand() function, which is by no means secure, but it will quickly fill up a number
+with the required number of random-looking bits. 
+It might repeat if you call twice in quick succession. It's quick and dirty, as advertised.
+
+If you *really* want a secure random number, then use bdRandomSeeded() and call your own super-secure
+random number generator, throwing in your own bit of extra entropy with the seed.
+
+*/
+
+#include <stdio.h>
+#include <assert.h>
+#include "bigd.h"
+#include "bigdRand.h"
+
+int main(void)
+{
+	BIGD a;
+	int i;
+
+	a = bdNew();
+	// Test bdQuickRandBits (quick-and-dirty)
+	printf("Testing bdQuickRandBits...\n");
+	for (i = 0; i < 10; i++)
+	{
+		bdQuickRandBits(a, 128);
+		bdPrintHex("", a, "\n");
+	}
+	// Test bdRandomBits (more secure)
+	printf("Testing bdRandomBits...\n");
+	for (i = 0; i < 10; i++)
+	{
+		bdRandomBits(a, 128);
+		bdPrintHex("", a, "\n");
+	}
+
+	return 0;
+}