Interrupt number	Device
0			Printer interrupt
1			Low battery warning
2			Floppy disc index pulse
3			Display vertical sync pulse
4			Power on reset
5			IOC timer 0
6			IOC timer 1
7			FIQ downgrade
8			Podule FIQ downgrade
9			Sound system buffer change
10			Serial port
11			IDE hard disc
12			Floppy
13			Podule interrupt
14			Keyboard transmit
15			Keyboard receive
16+			Risc PC/A7000 specific
