From: bernie <bernie@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Mon, 15 May 2006 07:20:35 +0000 (+0000)
Subject: rand() implementation.
X-Git-Tag: 1.0.0~641
X-Git-Url: https://codewiz.org/gitweb?a=commitdiff_plain;h=6998354505e9112ed772da779507af6a61055c06;p=bertos.git

rand() implementation.


git-svn-id: https://src.develer.com/svnoss/bertos/trunk@600 38d2e660-2303-0410-9eaa-f027e97ec537
---

diff --git a/mware/rand.c b/mware/rand.c
new file mode 100755
index 00000000..11df4213
--- /dev/null
+++ b/mware/rand.c
@@ -0,0 +1,24 @@
+/**
+ * \file
+ * <!--
+ * Copyright 2006 Develer S.r.l. (http://www.develer.com/)
+ * Copyright 1999 Bernardo Innocenti <bernie@develer.com>
+ * This file is part of DevLib - See README.devlib for information.
+ * -->
+ *
+ * \brief Very simple rand() algorithm.
+ *
+ * \version $Id$
+ * \author Bernardo Innocenti <bernie@develer.com>
+ */
+
+/* This would really belong to libc */
+static int rand(void)
+{
+	static unsigned long seed;
+
+	/* Randomize seed */
+	seed = (seed ^ 0x4BAD5A39UL) + 6513973UL;
+
+	return (int)(seed>>16);
+}