S64               220 ext/digest/sha2/sha2.c #define Sigma0_512(x)	(S64(28, (x)) ^ S64(34, (x)) ^ S64(39, (x)))
S64               221 ext/digest/sha2/sha2.c #define Sigma1_512(x)	(S64(14, (x)) ^ S64(18, (x)) ^ S64(41, (x)))
S64               222 ext/digest/sha2/sha2.c #define sigma0_512(x)	(S64( 1, (x)) ^ S64( 8, (x)) ^ R( 7,   (x)))
S64               223 ext/digest/sha2/sha2.c #define sigma1_512(x)	(S64(19, (x)) ^ S64(61, (x)) ^ R( 6,   (x)))