use std::{fs::File, io::BufReader};

mod chip8;

fn main() -> std::io::Result<()> {
    if let Some(arg) = std::env::args().nth(1) {
        let mut chip8 = chip8::Chip8::new();
        {
            let file = File::open(arg)?;
            let buf_reader = BufReader::new(file);
            chip8.load_rom(buf_reader)?;
        }
        loop {
            chip8.cycle();
            chip8.display()?;
        }
    } else {
        println!("usage: chip8 rompath")
    }
    Ok(())
}