DEC_IRQ_SCC1
irq = dec_interrupt[DEC_IRQ_SCC1];
[DEC_IRQ_SCC1] = -1,
[DEC_IRQ_SCC1] = -1,
[DEC_IRQ_SCC1] = -1,
[DEC_IRQ_SCC1] = IO_IRQ_NR(KN02BA_IO_INR_SCC1),
[DEC_IRQ_SCC1] = -1,
[DEC_IRQ_SCC1] = IO_IRQ_NR(KN03_IO_INR_SCC1),