3 This file is part of the AVR-Crypto-Lib.
4 Copyright (C) 2010 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
36 #define ROT_BIT(a) (((a) <= 4) ? ((a) << 1) : (0x01 | ((8 - (a)) << 1)))
38 //#define ROT_CODE(a,b) (((a)<<4) | ((b)&0x0f))
40 #define ROT_CODE(a) ((((a) / 8 + ((((a) % 8) > 4) ? 1 : 0)) << 4) | ROT_BIT(((a) % 8)))
41 //#define ROT_CODE(a) ((((a)/8)<<4) | ((a)%8)) /* rotations only to the left */
43 uint64_t rotate64_1bit_left(uint64_t a);
44 uint64_t rotate64_1bit_right(uint64_t a);
45 uint64_t rotate64_nbit_autodir(uint64_t a, int8_t n);
46 uint64_t rotate64left_code(uint64_t a, int8_t code);
48 #endif /* ROTATE64_H_ */