use {core::arch::asm, limine::FramebufferRequest};

pub const PAGE_SIZE: usize = 4096;

#[no_mangle]
unsafe extern "C" fn _kernel_start() -> ! {
    static FB_REQ: FramebufferRequest = FramebufferRequest::new(0);
    let fb1 = &FB_REQ.get_response().get().unwrap().framebuffers()[0];

    for i in 0..100_usize {
        let offset = i * fb1.pitch as usize + i * 4;
        unsafe {
            *(fb1.address.as_ptr().unwrap().offset(offset as isize) as *mut u32) = 0xFFFFFFFF;
        }
    }

    spin_loop();
}

pub fn spin_loop() -> ! {
    loop {
        unsafe { asm!("wfi") }
    }
}

pub fn hardware_random_u64() -> u64 {
    0
}

pub fn log(_args: core::fmt::Arguments<'_>) -> core::fmt::Result {
    panic!()
}