e0                 44 crypto/sha256_generic.c #define e0(x)       (ror32(x, 2) ^ ror32(x,13) ^ ror32(x,22))
e0                 76 crypto/sha512_generic.c #define e0(x)       (RORu64(x,28) ^ RORu64(x,34) ^ RORu64(x,39))