- register_ioport_write(0x3c0, 16, 1, cirrus_vga_ioport_write, s);
-
- register_ioport_write(0x3b4, 2, 1, cirrus_vga_ioport_write, s);
- register_ioport_write(0x3d4, 2, 1, cirrus_vga_ioport_write, s);
- register_ioport_write(0x3ba, 1, 1, cirrus_vga_ioport_write, s);
- register_ioport_write(0x3da, 1, 1, cirrus_vga_ioport_write, s);
-
- register_ioport_read(0x3c0, 16, 1, cirrus_vga_ioport_read, s);
-
- register_ioport_read(0x3b4, 2, 1, cirrus_vga_ioport_read, s);
- register_ioport_read(0x3d4, 2, 1, cirrus_vga_ioport_read, s);
- register_ioport_read(0x3ba, 1, 1, cirrus_vga_ioport_read, s);
- register_ioport_read(0x3da, 1, 1, cirrus_vga_ioport_read, s);
+ /* Register ioport 0x3b0 - 0x3df */
+ memory_region_init_io(&s->cirrus_vga_io, &cirrus_vga_io_ops, s,
+ "cirrus-io", 0x30);
+ memory_region_add_subregion(system_io, 0x3b0, &s->cirrus_vga_io);