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diff --git a/lfsr.h b/lfsr.h
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--- /dev/null
+++ b/lfsr.h
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+/*
+ * File:   lfsr.h
+ *
+ * Linear Feedback Shift Register (random number generator)
+ */
+
+
+#ifndef _LFSR_H
+#define _LFSR_H
+
+/* Initialize the LFSR generator */
+void lfsr_init(unsigned seed);
+
+/* Read the next LFSR value */
+unsigned lfsr_get();
+
+#endif