AIC_SW_BIT
HWRITE4(sc, AIC_SW_CLR(irq), AIC_SW_BIT(irq));
HWRITE4(sc, AIC2_SW_CLR(die, irq), AIC_SW_BIT(irq));
HWRITE4(sc, AIC_SW_SET(irq), AIC_SW_BIT(irq));
HWRITE4(sc, AIC2_SW_SET(die, irq), AIC_SW_BIT(irq));