Function handler_changes_regs

kernel/tests/interrupt_wrap.rs:70–91

()

#[test_case]
fn handler_changes_regs() {
    unsafe {
        asm!("mov r11, 0x4242",
             "mov rcx, 0x93",
             "mov rdi, 0x22"
        );
    }

    // Wait for an interrupt
    unsafe {asm!("hlt");}

    // Get the register values
    let (r11, rdi, rcx): (i64, i64, i64);
    unsafe {asm!("nop",
                 lateout("r11") r11,
                 lateout("rcx") rcx,
                 lateout("rdi") rdi);}

    assert_eq!(rdi, 0x22);
    assert_eq!(r11, rdi + 0x5321);
    assert_eq!(rcx, 0xdeadbeef);
}