map_item(&mem_iortab[IOMEM32(0x1100)], io_rcnt_read_count0, 1);
map_item(&mem_iortab[IOMEM32(0x1104)], io_rcnt_read_mode0, 1);
map_item(&mem_iortab[IOMEM32(0x1108)], io_rcnt_read_target0, 1);
map_item(&mem_iortab[IOMEM32(0x1100)], io_rcnt_read_count0, 1);
map_item(&mem_iortab[IOMEM32(0x1104)], io_rcnt_read_mode0, 1);
map_item(&mem_iortab[IOMEM32(0x1108)], io_rcnt_read_target0, 1);