X4
#define X5(x...) X4(x), x
#define X6(x...) X4(x), X2(x)
#define X7(x...) X4(x), X3(x)
#define X8(x...) X4(x), X4(x)
N, N, X4(N), X8(N)
#define OP(X1, X2, X3, X4, rbase) \
t1 = X4 ^ ks[rbase+1]; \
#define SLP_VEC(X0, X1, X2, X3, X4) { \
cpu_to_le32(X4) \
#define SLP_VEC(X0, X1, X2, X3, X4) {cpu_to_le32(X0), \
cpu_to_le32(X4)}