64 lines
2.3 KiB
C++
64 lines
2.3 KiB
C++
#include "stdafx.h"
|
|
#include "iNesLoader.h"
|
|
#include "../Utilities/CRC32.h"
|
|
#include "MessageManager.h"
|
|
|
|
std::unordered_map<uint32_t, uint8_t> iNesLoader::_submapperByCrc = {
|
|
//MC-ACC Games (MMC3 variant) - Mapper 4, SubMapper 3
|
|
{ 0xC527C297, 3 }, //Alien 3
|
|
{ 0xAF05F37E, 3 }, //George Foreman's KO Boxing
|
|
{ 0xA80A0F01, 3 }, //Incredible Crash Dummies
|
|
{ 0x982DFB38, 3 }, //Mickey's Safari in Letterland
|
|
{ 0x018A8699, 3 }, //Roger Clemens' MVP Baseball
|
|
{ 0x2370C0A9, 3 }, //Rollerblade Racer
|
|
{ 0x7416903F, 3 }, //Simpsons, The: Bart vs. The World
|
|
{ 0x5991B9D0, 3 }, //Simpsons, The: Bartman Meets Radioactive Man
|
|
{ 0xD679627A, 3 }, //Spider-Man: Return of the Sinister Six
|
|
{ 0x7E57FBEC, 3 }, //T&C Surf Designs 2: Thrilla's Surfari
|
|
{ 0xEA27B477, 3 }, //T2: Terminator 2: Judgment Day
|
|
{ 0x7B4ED0BB, 3 }, //WWF King of the Ring
|
|
{ 0xD4611B79, 3 } //WWF WrestleMania: Steel Cage Challenge
|
|
};
|
|
|
|
RomData iNesLoader::LoadRom(vector<uint8_t>& romFile)
|
|
{
|
|
RomData romData;
|
|
|
|
uint8_t* buffer = romFile.data();
|
|
NESHeader header;
|
|
memcpy((char*)&header, buffer, sizeof(NESHeader));
|
|
buffer += sizeof(NESHeader);
|
|
|
|
header.SanitizeHeader(romFile.size());
|
|
|
|
romData.MapperID = header.GetMapperID();
|
|
romData.SubMapperID = header.GetSubMapper();
|
|
romData.MirroringType = header.GetMirroringType();
|
|
romData.HasBattery = header.HasBattery();
|
|
romData.IsPalRom = header.IsPalRom();
|
|
romData.IsVsSystem = header.IsVsSystem();
|
|
romData.IsPlayChoice = header.IsPlaychoice();
|
|
romData.HasTrainer = header.HasTrainer();
|
|
|
|
if(romData.HasTrainer) {
|
|
//512-byte trainer at $7000-$71FF (stored before PRG data)
|
|
romData.TrainerData.insert(romData.TrainerData.end(), buffer, buffer + 512);
|
|
buffer += 512;
|
|
}
|
|
|
|
if(header.GetRomHeaderVersion() != RomHeaderVersion::Nes2_0) {
|
|
//Check rom CRC to set submapper as needed
|
|
uint32_t romCrc = CRC32::GetCRC(buffer, header.GetPrgSize() + header.GetChrSize());
|
|
auto crcCheckResult = _submapperByCrc.find(romCrc);
|
|
if(crcCheckResult != _submapperByCrc.end()) {
|
|
romData.SubMapperID = crcCheckResult->second;
|
|
MessageManager::DisplayMessage("GameInfo", "Header information corrected.");
|
|
}
|
|
}
|
|
|
|
romData.PrgRom.insert(romData.PrgRom.end(), buffer, buffer + header.GetPrgSize());
|
|
buffer += header.GetPrgSize();
|
|
romData.ChrRom.insert(romData.ChrRom.end(), buffer, buffer + header.GetChrSize());
|
|
|
|
return romData;
|
|
}
|