void m48t59_toggle_lock (void *private, int lock);
M48t59State *m48t59_init_isa(ISABus *bus, uint32_t io_base, uint16_t size,
int type);
-M48t59State *m48t59_init(qemu_irq IRQ, target_phys_addr_t mem_base,
+M48t59State *m48t59_init(qemu_irq IRQ, hwaddr mem_base,
uint32_t io_base, uint16_t size, int type);
void m48t59_set_addr (void *opaque, uint32_t addr);