EVCNTBR
reg = EVCNTBR + p * 0x20 + i;
CSR_WRITE_2(sc, IACR, EVCNTBR + 0x100 + p);
CSR_WRITE_2(sc, IACR, EVCNTBR + 0x100 + p * 3 + 1);
reg = EVCNTBR + p * 0x20 + i;
CSR_WRITE_2(sc, IACR, EVCNTBR + 0x100 + p);
CSR_WRITE_2(sc, IACR, EVCNTBR + 0x100 + p * 3 + 1);