PMUINT_REG_W
vrpmu_write(sc, PMUINT_REG_W, PMUINT_ALL);
intstat1 = vrpmu_read(sc, PMUINT_REG_W);
reg = vrpmu_read(sc, PMUINT_REG_W);
intstat1 = vrpmu_read(sc, PMUINT_REG_W);
vrpmu_write(sc, PMUINT_REG_W, intstat1);