vACR
reg = cuda_read_reg(sc, vACR);
cuda_write_reg(sc, vACR, reg);
cuda_write_reg(sc, vACR, (cuda_read_reg(sc, vACR) | 0x0c) & ~0x10);
reg = cuda_read_reg(sc, vACR);
cuda_write_reg(sc, vACR, reg);
reg = cuda_read_reg(sc, vACR);
cuda_write_reg(sc, vACR, reg);
reg = pmu_read_reg(sc, vACR);
pmu_write_reg(sc, vACR, reg);
reg = pmu_read_reg(sc, vACR);
pmu_write_reg(sc, vACR, reg);