core: cartridge: Try to detect and print the backup type
In preparation for backup impl Former-commit-id: 75efbbaea82ba30899787b46b8eaca834622493c
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@ -29,6 +29,7 @@ bit-set = "0.5.1"
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ringbuf = "0.2.1"
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debug_stub_derive = "0.3.0"
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bytesize = "1.0.0"
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memmem = "0.1.1"
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rustyline = {version = "5.0.0", optional = true}
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nom = {version = "5.0.0", optional = true}
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@ -1,12 +1,11 @@
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use std::ffi::OsStr;
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use std::fs::File;
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use std::io::prelude::*;
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use std::path::Path;
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use std::str::from_utf8;
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use serde::{Deserialize, Serialize};
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use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
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use memmem::{Searcher, TwoWaySearcher};
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use num::FromPrimitive;
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use zip::ZipArchive;
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use super::super::util::read_bin_file;
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@ -71,6 +70,15 @@ impl CartridgeHeader {
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}
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}
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#[derive(Debug, Primitive, Serialize, Deserialize, Clone)]
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pub enum BackupType {
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Eeprom = 0,
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Sram = 1,
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Flash = 2,
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Flash512 = 3,
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Flash1M = 4,
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}
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#[derive(Serialize, Deserialize, Clone, Debug)]
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pub struct Cartridge {
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pub header: CartridgeHeader,
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@ -109,16 +117,13 @@ fn load_rom(path: &Path) -> GBAResult<Vec<u8>> {
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impl Cartridge {
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pub fn from_path(rom_path: &Path) -> GBAResult<Cartridge> {
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let rom_bin = load_rom(rom_path)?;
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let size = rom_bin.len();
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let header = CartridgeHeader::parse(&rom_bin);
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Ok(Cartridge {
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header: header,
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bytes: rom_bin.into_boxed_slice(),
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size: size,
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})
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Ok(Cartridge::from_bytes(&rom_bin))
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}
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pub fn from_bytes(bytes: &[u8]) -> Cartridge {
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let backup = Cartridge::detect_backup_type(&bytes);
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println!("Backup detected: {:?}", backup);
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let size = bytes.len();
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let header = CartridgeHeader::parse(&bytes);
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@ -128,6 +133,20 @@ impl Cartridge {
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size: size,
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}
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}
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fn detect_backup_type(bin: &[u8]) -> Option<BackupType> {
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const ID_STRINGS: &'static [&'static str] =
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&["EEPROM_V", "SRAM_V", "FLASH_V", "FLASH512_V", "FLASH1M_V"];
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for i in 0..5 {
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let search = TwoWaySearcher::new(ID_STRINGS[i].as_bytes());
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match search.search_in(bin) {
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Some(_) => return Some(BackupType::from_u8(i as u8).unwrap()),
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_ => {}
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}
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}
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return None;
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}
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}
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impl Bus for Cartridge {
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@ -34,6 +34,8 @@ extern crate colored; // not needed in Rust 2018
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extern crate zip;
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extern crate memmem;
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#[macro_use]
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pub mod util;
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pub mod core;
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