altair_emu/src/ram.rs

use serde::{Deserialize, Serialize};

use crate::card::{Card, CardEnum};

#[derive(Serialize, Deserialize)]
pub struct RamCardSettings {
    size: u16,
    start_addr: u16,
}
pub struct RamCard {
    ram: Vec<u8>,
    start_addr: u16,
}

impl Card for RamCard {
    fn new(settings: ron::Value) -> CardEnum {
        let settings: RamCardSettings = settings.into_rust().unwrap();
        let mut ram = Vec::with_capacity(settings.size as usize);
        ram.resize(settings.size as usize, 0);
        CardEnum::RamCard(Self {
            ram,
            start_addr: settings.start_addr,
        })
    }

    fn serialize_settings(&self) -> String {
        ron::to_string(&RamCardSettings {
            size: self.ram.len() as u16,
            start_addr: self.start_addr,
        })
        .unwrap()
    }
}