DISR
while (((RD4(sc, DISR) & DISR_TCINT)) == 0) {
sr = RD4(sc, DISR);
WR4(sc, DISR, sr);
xs->cmd->opcode, RD4(sc, DISR));
WR4(sc, DISR, DISR_BRKINT |
WR4(sc, DISR, DISR_BRKINT |