r_timestamp
if (memcmp(timestamp, r->r_timestamp, NOISE_TIMESTAMP_LEN) > 0)
memcpy(r->r_timestamp, timestamp, NOISE_TIMESTAMP_LEN);
uint8_t r_timestamp[NOISE_TIMESTAMP_LEN];
r->r_timestamp = htobe64(ticks);
uint64_t r_timestamp; /* XXX may wrap! */
r_timestamp(&action0, &r->btstate, &r->e3b, &r->drift);
r_timestamp(act, &r->btstate, &r->e3b, &r->drift);
r_timestamp(&newaction, &r->btstate, &r->e3b, &r->drift);
r_timestamp(a2, &r->btstate, e3b, &r->drift);
static void r_timestamp(mousestatus_t *act, struct btstate *bt,