27 lines
613 B
Rust
27 lines
613 B
Rust
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use std::fs::File;
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use std::io::{self, Read};
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use std::path::Path;
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#[derive(Debug, Clone)]
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pub struct Cartridge {
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memory: Vec<u8>,
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}
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impl Cartridge {
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pub fn new<P: AsRef<Path> + ?Sized>(path: &P) -> io::Result<Self> {
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let mut memory = vec![];
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let mut rom = File::open(path)?;
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rom.read_to_end(&mut memory)?;
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Ok(Self { memory })
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}
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pub fn read_byte(&self, addr: u16) -> u8 {
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self.memory[addr as usize]
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}
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pub fn read_word(&self, addr: u16) -> u16 {
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(self.memory[(addr + 1) as usize] as u16) << 8 | self.memory[addr as usize] as u16
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}
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}
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