TMC_STS
reg = bus_read_4(sc->res, TMC_STS);
bus_read_4(sc->res, TMC_STS),
reg = bus_read_4(sc->res, TMC_STS);
reg = bus_read_4(sc->res, TMC_STS);
bus_write_4(sc->res, TMC_STS, reg);
if (bus_read_4(sc->res, TMC_STS) & STS_FULL) {
reg = bus_read_4(sc->res, TMC_STS);
reg = bus_read_4(sc->res, TMC_STS);