mach_init_IRQ = sun3_init_IRQ;
mach_default_handler = &sun3_default_handler;
mach_request_irq = sun3_request_irq;
mach_free_irq = sun3_free_irq;
mach_init_IRQ = sun3_init_IRQ;
mach_default_handler = &sun3_default_handler;
mach_request_irq = sun3_request_irq;
mach_free_irq = sun3_free_irq;