cache_data[rd_idx][cache_fill_pos] <= bus_rdata;
cache_fill_pos <= cache_fill_pos + 1;
if (cache_fill_pos == 15) begin /* Done? */
cache_data[rd_idx][cache_fill_pos] <= bus_rdata;
cache_fill_pos <= cache_fill_pos + 1;
if (cache_fill_pos == 15) begin /* Done? */