حاوية disk

fn inb(port: u16) -> u8 {
    let msg = seL4_MessageInfo::new(X86_IOPORT_IN8, 0, 1, 1);
    unsafe {
        let mut out_mr0: seL4_Word = 0;
        core::arch::asm!(
            "xchg r12, rbx",
            "mov rbx, rsp",
            "syscall",
            "mov rsp, rbx",
            "xchg r12, rbx",
            in("rdx") -1isize,
            inout("rdi") IO_PORT_CAP => _,
            inout("rsi") msg.words[0] => _,
            inout("r10") port as usize => out_mr0,
            options(nostack)
        );
        out_mr0 as u8
    }
}