S1
#define S1 ((long double)S1hi + S1lo)
#define S1 ((long double)S1hi + S1lo)
#define S1(x) (ROTR(x, 6) ^ ROTR(x, 11) ^ ROTR(x, 25))
#define S1(x) (ROTR(x, 14) ^ ROTR(x, 18) ^ ROTR(x, 41))
S1, /* button 1 delayed down */