private void setRomBank(int bank) {
if (bank == 0) {
rom.setBank(1);
} else {
rom.setBank(bank % romBanks);
}
}
public MBC2(ROM cartridge) {
rom = cartridge;
romBanks = rom.getRomBanks();
eram = new Eram4bit(ADDRESS_ERAM_START, ADDRESS_ERAM_END, 1);
System.out.println("This rom has " + romBanks + " banks");
}
public int read(int address) {
if (address >= 0x0000 && address < 0x8000) {
return rom.read(address);
} else if (address >= ADDRESS_ERAM_START && address < ADDRESS_ERAM_4BIT_END && ramEnable) {
return eram.read(address);
}
return 0;
}
/** {@inheritDoc} */
public void saveState(FileOutputStream fos) throws IOException {
rom.saveState(fos);
eram.saveState(fos);
FileIOStreamHelper.writeData(fos, (long) romBank, 4);
FileIOStreamHelper.writeData(fos, (long) romBanks, 4);
}
/** {@inheritDoc} */
public void readState(FileInputStream fis) throws IOException {
rom.readState(fis);
eram.readState(fis);
romBank = (int) FileIOStreamHelper.readData(fis, 4);
romBanks = (int) FileIOStreamHelper.readData(fis, 4);
}
public void forceWrite(int address, int data) {
rom.forceWrite(address, data);
}