From 24d11d4976062e965fb64861808548c39f53714b Mon Sep 17 00:00:00 2001
From: Lars-Dominik Braun <lars@6xq.net>
Date: Mon, 10 Mar 2014 17:30:31 +0100
Subject: Add common.h

---
 common.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 common.h

(limited to 'common.h')

diff --git a/common.h b/common.h
new file mode 100644
index 0000000..ecf2c27
--- /dev/null
+++ b/common.h
@@ -0,0 +1,13 @@
+#ifndef COMMON_H
+#define COMMON_H
+
+/* cpu runs at 1mhz */
+#define F_CPU 1000000
+
+#define sleepwhile(cond) \
+	sleep_enable (); \
+	while (cond) { sleep_cpu (); } \
+	sleep_disable ();
+
+#endif /* COMMON_H */
+
-- 
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