@ -6,7 +6,7 @@
static inline bool check_frame_sync(uint64_t x, int err_threshold, int len) {
int errs=0;
static const uint64_t mask = (1LL<<len)-1;
const uint64_t mask = (1LL<<len)-1LL;
x = x & mask;
// source: https://en.wikipedia.org/wiki/Hamming_weight
static const uint64_t m1 = 0x5555555555555555; //binary: 0101...