src/registers.rs

#[derive(Debug, Clone)]
pub struct Registers {
    pub r: [i64; 16],
}

impl Registers {
    pub fn new() -> Self {
        Self { r: [0; 16] }
    }

    pub fn get(&self, idx: usize) -> i64 {
        self.r[idx]
    }

    pub fn set(&mut self, idx: usize, val: i64) {
        self.r[idx] = val;
    }
}