CY_NTRACEREC
cpu->cyp_trace[i].cyt_ndx = CY_NTRACEREC - 1;
new_ndx = ndx == 0 ? CY_NTRACEREC - 1 : ndx - 1;
(buf)->cyt_ndx = (++_ndx == CY_NTRACEREC) ? 0 : _ndx; \
cyc_tracerec_t cyt_buf[CY_NTRACEREC];