RE_ISR
CSR_WRITE_2(sc, RE_ISR, val);
return CSR_READ_2(sc, RE_ISR);
CSR_WRITE_2(sc, RE_ISR, 0xffff);
if ((CSR_READ_2(sc, RE_ISR) & RE_INTRS) == 0) {
status = CSR_READ_2(sc, RE_ISR);
CSR_WRITE_2(sc, RE_ISR, status & ~RE_ISR_FIFO_OFLOW);
CSR_WRITE_2(sc, RE_ISR, RE_ISR_FIFO_OFLOW);
if (CSR_READ_2(sc, RE_ISR) & RE_INTRS) {