mod ijvm;


use ijvm::machine::Machine;
use std::env;


fn main() {
    let args: Vec<String> = env::args().collect();

    if args.len() < 2 {
        println!("Usage: {} ijvmfile", args[0]);
        return;
    }

    let ijvmfile = &args[1];

    let mut machine = Machine::new_from_file(ijvmfile).unwrap();
    while machine.has_step() {
        match machine.step() {
            Ok(_) => (),
            Err(str) => {
                println!("\n\nERROR: pc=0x{:x} fp=0x{:x}: {}\nProgram exit",
                         machine.get_program_counter(),
                         machine.frame.len() - 1,
                         str);
                return;
            }
        }
    }
}