SUN4I_INTC_MASK_REG1
fRegBase[SUN4I_INTC_MASK_REG1] |= 1 << (irq - 32);
fRegBase[SUN4I_INTC_MASK_REG1] &= ~(1 << (irq - 32));
fRegBase[SUN4I_INTC_MASK_REG1] &= ~(1 << (irq - 64));
fRegBase[SUN4I_INTC_MASK_REG1] = 0;