ADVV_FREE_Q_HEAD_W
adv_write_lram_16(adv, ADVV_FREE_Q_HEAD_W, 1);
free_q_head = adv_read_lram_16(adv, ADVV_FREE_Q_HEAD_W) & 0xFF;
adv_write_lram_16(adv, ADVV_FREE_Q_HEAD_W, next_qp);
#define ADVV_FREE_Q_HEAD_B (ADVV_FREE_Q_HEAD_W+1)