13 #define SHFR(x, n) (x >> n)  argument
14 #define ROTR(x, n) ((x >> n) | (x << ((sizeof(x) << 3) - n)))  argument
15 #define ROTL(x, n) ((x << n) | (x >> ((sizeof(x) << 3) - n)))  argument
16 #define CH(x, y, z) ((x & y) ^ (~x & z))  argument
17 #define MAJ(x, y, z) ((x & y) ^ (x & z) ^ (y & z))  argument
19 #define SHA256_F1(x) (ROTR(x, 2) ^ ROTR(x, 13) ^ ROTR(x, 22))  argument
20 #define SHA256_F2(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))  argument
21 #define SHA256_F3(x) (ROTR(x, 7) ^ ROTR(x, 18) ^ SHFR(x, 3))  argument
22 #define SHA256_F4(x) (ROTR(x, 17) ^ ROTR(x, 19) ^ SHFR(x, 10))  argument
24 #define UNPACK32(x, str)                 \  argument
32 #define PACK32(str, x)                                                    \  argument