TRACE_LEN
u32 data[TRACE_LEN / 4];
u32 mask[TRACE_LEN / 4];
for (i = 0; i < TRACE_LEN / 4; i++, data_reg += 4, mask_reg += 4) {
for (i = 0; i < TRACE_LEN / 4; i++, data_reg += 4, mask_reg += 4) {