//! PIC I/O Ports pub const pic1_command: u16 = 0x20; pub const pic1_data: u16 = 0x21; pub const pic2_command: u16 = 0xA0; pub const pic2_data: u16 = 0xA1; pub const icw1_icw4: u8 = 0x01; pub const icw1_init: u8 = 0x10; pub const icw4_8086: u8 = 0x01; pub const eoi: u8 = 0x20; pub const vector_offset_master: u8 = 32; pub const vector_offset_slave: u8 = 40;