ROTR32            428 ext/hash/hash_sha.c #define SHA256_F2(x)		(ROTR32( 2,(x)) ^ ROTR32(13,(x)) ^ ROTR32(22,(x)))
ROTR32            430 ext/hash/hash_sha.c #define SHA256_F3(x)		(ROTR32( 6,(x)) ^ ROTR32(11,(x)) ^ ROTR32(25,(x)))
ROTR32            432 ext/hash/hash_sha.c #define SHA256_F4(x)		(ROTR32( 7,(x)) ^ ROTR32(18,(x)) ^ SHR( 3,(x)))
ROTR32            434 ext/hash/hash_sha.c #define SHA256_F5(x)		(ROTR32(17,(x)) ^ ROTR32(19,(x)) ^ SHR(10,(x)))