#include void mix_lfsr(u32 h[4], const u32 v[4]) { u32 w; int i; for (i = 0; i < 4; ++i) { w = h[0] ^ h[1] ^ h[3] ^ v[i]; w ^= w << 17; w ^= w >> 6; w ^= w >> 9; h[0] = h[1]; h[1] = h[2]; h[2] = h[3]; h[3] = w; } }