sync

C/Adidas/shared/decode.h

@@ -0,0 +1,28 @@
+#ifndef DECODE_H_
+#define DECODE_H_
+
+#include <stdint.h>
+
+/*!
+ * Combines the nibbles located at the 4-least-significant bits of
+ * parameters 'low' and 'high' into one byte.
+ *
+ * @param high: A nibble that contains the 4 most-significant bits
+ * @param low:  A nibble that contains the 4 most-significant bits
+ *
+ * @return: A byte that combines the high and low nibble.
+ */
+uint8_t decode_combine_nibbles(uint8_t high, uint8_t low);
+
+/*!
+ * Decodes a nibble from a byte that contains the nible (4-bits) and
+ * corresponding parity bits (3-bits). See assignment for more details.
+ *
+ * @param in:     A bytes that contains a nibble and parity bits.
+ * @param nibble: The address to which the decoded nibble
+ *                of 'in' will be written.
+ *
+ */
+void decode_byte(uint8_t in, uint8_t* nibble);
+
+#endif