initial import

c_src/AVR8-rotate64.h

@@ -0,0 +1,27 @@
+/*
+File: AVR8-rotate64.h
+
+This code is originally by Daniel Otte (daniel.otte@rub.de) in 2006-2010 as part of the AVR-Crypto-Lib, and was then improved by Ronny Van Keer, STMicroelectronics, in 2010. 
+
+Implementation by Daniel Otte and Ronny Van Keer,
+hereby denoted as "the implementer".
+
+To the extent possible under law, the implementer has waived all copyright
+and related or neighboring rights to the source code in this file.
+http://creativecommons.org/publicdomain/zero/1.0/
+*/
+
+#ifndef ROTATE64_H_
+#define ROTATE64_H_
+
+#include <stdint.h>
+
+
+#define ROT_CODE(a) ((((a)/8+((((a)%8)>4)?1:0))<<4) | ((a) & 7))
+
+uint64_t rotate64_1bit_left(uint64_t a);
+uint64_t rotate64_1bit_right(uint64_t a);
+uint64_t rotate64left_code(uint64_t a, int8_t code);
+
+#endif /* ROTATE64_H_ */
+