unimplemented
void (*func)(void) = unimplemented;
#define bus_space_read_multi_8 !!! bus_space_read_multi_8 unimplemented !!!
#define bus_space_read_region_8 !!! bus_space_read_region_8 unimplemented !!!
!!! bus_space_write_multi_8 unimplemented !!!
!!! bus_space_write_region_8 unimplemented !!!
#define bus_space_set_multi_8 !!! bus_space_set_multi_8 unimplemented !!!
#define bus_space_set_region_8 !!! bus_space_set_region_8 unimplemented !!!
#define bus_space_copy_region_8 !!! bus_space_copy_region_8 unimplemented !!!