private IEnumerable <XElement> GetSnapElements(XElement snap, CICKeyType cic, RegionType region)
{
var condition = snap.Attribute("Condition");
var value = snap.Attribute("Value");
Boolean valid = false;
if (condition != null)
{
switch (condition.Value)
{
case "CIC": valid = CompareCic(value.Value, cic); break;
case "Region": valid = CompareRegion(value.Value, region); break;
default: break;
}
if (!valid)
{
return(Enumerable.Empty <XElement>());
}
}
List <XElement> writes = new List <XElement>();
writes.AddRange(snap.Elements("GPRRegSet"));
writes.AddRange(snap.Elements("Mem32"));
writes.AddRange(snap.Elements("BootSnap").SelectMany(s => GetSnapElements(s, cic, region)));
return(writes);
}
public void LoadBootSnap(CICKeyType cic, RegionType region)
{
List<GprRegWrite> regs = new List<GprRegWrite>();
List<Mem32Write> mem32 = new List<Mem32Write>();
BinaryWriter bw = new BinaryWriter(Machine.Current.N64MemorySafe);
StreamReader reader = new StreamReader(m_BootSnapStream);
XDocument doc = XDocument.Load(reader, LoadOptions.None);
XElement root = doc.Root;
var results = GetSnapElements(root, cic, region);
foreach (var result in results)
{
if (result.Name == "GPRRegSet")
{
regs.Add(
new GprRegWrite
{
index = Int32.Parse(result.Attribute("Index").Value),
value = UInt64.Parse(HexFix(result.Value), NumberStyles.AllowHexSpecifier)
});
}
if (result.Name == "Mem32")
{
mem32.Add(
new Mem32Write
{
index = Int32.Parse(result.Attribute("Index").Value),
position = Int64.Parse(HexFix(result.Attribute("Offset").Value), NumberStyles.AllowHexSpecifier),
value = UInt32.Parse(HexFix(result.Value), NumberStyles.AllowHexSpecifier),
});
}
}
/* Now we do the actual writes to the emulator */
foreach (var reg in regs)
{
Machine.Current.DeviceCPU.State.WriteGPRUnsigned(reg.index, reg.value);
}
foreach (var m in mem32)
{
bw.BaseStream.Position = m.position + (4 * m.index);
bw.Write(m.value);
}
}
public void LoadBootSnap(CICKeyType cic, RegionType region)
{
List <GprRegWrite> regs = new List <GprRegWrite>();
List <Mem32Write> mem32 = new List <Mem32Write>();
BinaryWriter bw = new BinaryWriter(Machine.Current.Memory);
StreamReader reader = new StreamReader(m_BootSnapStream);
XDocument doc = XDocument.Load(reader, LoadOptions.None);
XElement root = doc.Root;
var results = GetSnapElements(root, cic, region);
foreach (var result in results)
{
if (result.Name == "GPRRegSet")
{
regs.Add(
new GprRegWrite
{
index = Int32.Parse(result.Attribute("Index").Value),
value = UInt64.Parse(HexFix(result.Value), NumberStyles.AllowHexSpecifier)
});
}
if (result.Name == "Mem32")
{
mem32.Add(
new Mem32Write
{
index = Int32.Parse(result.Attribute("Index").Value),
position = Int64.Parse(HexFix(result.Attribute("Offset").Value), NumberStyles.AllowHexSpecifier),
value = UInt32.Parse(HexFix(result.Value), NumberStyles.AllowHexSpecifier),
});
}
}
/* Now we do the actual writes to the emulator */
foreach (var reg in regs)
{
Machine.Current.DeviceCPU.State.WriteGPRUnsigned(reg.index, reg.value);
}
foreach (var m in mem32)
{
bw.BaseStream.Position = m.position + (4 * m.index);
bw.Write(m.value);
}
}
public static Int32 Seed(this CICKeyType cic)
{
switch (cic)
{
default: return(0);
case CICKeyType.CIC_X101:
case CICKeyType.CIC_X102: return(0x3F);
case CICKeyType.CIC_X103: return(0x78);
case CICKeyType.CIC_X105: return(0x91);
case CICKeyType.CIC_X106: return(0x85);
}
}
private void ComputeCICType()
{
Byte[] bootcodeBuffer = new Byte[Size];
using (MemoryStream ms = new MemoryStream(bootcodeBuffer))
{
CopyCode(ms);
}
Crc32HashAlgorithm alg = new Crc32HashAlgorithm();
alg.Initialize();
alg.ComputeHash(bootcodeBuffer);
switch (alg.CrcValue)
{
case 0x6170A4A1: m_CICType = CICKeyType.CIC_X101; break;
case 0x90BB6CB5: m_CICType = CICKeyType.CIC_X102; break;
case 0x0B050EE0: m_CICType = CICKeyType.CIC_X103; break;
case 0x98BC2C86: m_CICType = CICKeyType.CIC_X105; break;
case 0xACC8580A: m_CICType = CICKeyType.CIC_X106; break;
default: m_CICType = CICKeyType.Unknown; break;
}
m_BootChecksum = alg.CrcValue;
#if DEBUG
/* For future of converting the bootcode hashcodes to MD5 */
MD5 md5 = MD5.Create();
md5.Initialize();
md5.ComputeHash(bootcodeBuffer);
StringBuilder sb = new StringBuilder();
foreach (Byte b in md5.Hash)
{
sb.AppendFormat("{0:X2}", b);
}
Debug.WriteLine(String.Format("MD5 Checksum for CIC Type ({0}): {1}", m_CICType, sb.ToString()));
#endif
}
public static String GetGoodName(this CICKeyType type)
{
switch (type)
{
case CICKeyType.CIC_HLE: return("HLE CIC");
case CICKeyType.CIC_X101: return("CIC-X101");
case CICKeyType.CIC_X102: return("CIC-X102");
case CICKeyType.CIC_X103: return("CIC-X103");
case CICKeyType.CIC_X105: return("CIC-X105");
case CICKeyType.CIC_X106: return("CIC-X106");
default: return(type.ToString());
}
}
public RomChecksum(CICKeyType type)
{
m_CicType = type;
}
public RomChecksum(CICKeyType type)
{
m_CicType = type;
}
private Boolean CompareCic(String cicName, CICKeyType cic)
{
return cic.ToString().Contains(cicName);
}
private IEnumerable<XElement> GetSnapElements(XElement snap, CICKeyType cic, RegionType region)
{
var condition = snap.Attribute("Condition");
var value = snap.Attribute("Value");
Boolean valid = false;
if (condition != null)
{
switch (condition.Value)
{
case "CIC": valid = CompareCic(value.Value, cic); break;
case "Region": valid = CompareRegion(value.Value, region); break;
default: break;
}
if (!valid)
return Enumerable.Empty<XElement>();
}
List<XElement> writes = new List<XElement>();
writes.AddRange(snap.Elements("GPRRegSet"));
writes.AddRange(snap.Elements("Mem32"));
writes.AddRange(snap.Elements("BootSnap").SelectMany(s => GetSnapElements(s, cic, region)));
return writes;
}
private void AssertPIFCodes(RegionType region, CICKeyType cic, ExecutionState state)
{
Assert.Equal(0x00000000A4000040L, state.PC);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[0]);
Assert.Equal(0xFFFFFFFFA4001F0CUL, state.GPRRegs[6]);
Assert.Equal(0xFFFFFFFFA4001F08UL, state.GPRRegs[7]);
Assert.Equal(0x00000000000000C0UL, state.GPRRegs[8]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[9]);
Assert.Equal(0x0000000000000040UL, state.GPRRegs[10]);
Assert.Equal(0xFFFFFFFFA4000040UL, state.GPRRegs[11]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[16]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[17]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[18]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[19]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[21]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[26]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[27]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[28]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[28]);
Assert.Equal(0xFFFFFFFFA4001FF0UL, state.GPRRegs[29]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[30]);
switch (Cartridge.Current.RomImage.Region)
{
case RegionType.MPAL:
case RegionType.PAL:
{
switch (Cartridge.Current.RomImage.BootRomInformation.CIC)
{
default:
case CICKeyType.Unknown:
case CICKeyType.CIC_X102:
{
Assert.Equal(0xFFFFFFFFC0F1D859UL, state.GPRRegs[5]);
Assert.Equal(0x000000002DE108EAUL, state.GPRRegs[14]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[24]);
break;
}
case CICKeyType.CIC_X101:
{
break;
}
case CICKeyType.CIC_X103:
{
Assert.Equal(0xFFFFFFFFD4646273UL, state.GPRRegs[5]);
Assert.Equal(0x000000001AF99984UL, state.GPRRegs[14]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[24]);
break;
}
case CICKeyType.CIC_X105:
{
Assert.Equal(0xFFFFFFFFDECAAAD1UL, state.GPRRegs[5]);
Assert.Equal(0x000000000CF85C13UL, state.GPRRegs[14]);
Assert.Equal(0x0000000000000002UL, state.GPRRegs[24]);
AssertEqualMemoryReadU32(0xA4001004, 0xBDA807FC);
break;
}
case CICKeyType.CIC_X106:
{
Assert.Equal(0xFFFFFFFFB04DC903UL, state.GPRRegs[5]);
Assert.Equal(0x000000001AF99984UL, state.GPRRegs[14]);
Assert.Equal(0x0000000000000002UL, state.GPRRegs[24]);
break;
}
}
Assert.Equal(0x0000000000000000UL, state.GPRRegs[20]);
Assert.Equal(0x0000000000000006UL, state.GPRRegs[23]);
Assert.Equal(0xFFFFFFFFA4001554UL, state.GPRRegs[31]);
break;
}
default:
case RegionType.Unknown:
case RegionType.NTSC:
{
switch (Cartridge.Current.RomImage.BootRomInformation.CIC)
{
default:
case CICKeyType.Unknown:
case CICKeyType.CIC_X102:
{
Assert.Equal(0xFFFFFFFFC95973D5UL, state.GPRRegs[5]);
Assert.Equal(0x000000002449A366UL, state.GPRRegs[14]);
break;
}
case CICKeyType.CIC_X101:
{
Assert.Equal(0x000000000000003FUL, state.GPRRegs[22]);
break;
}
case CICKeyType.CIC_X103:
{
Assert.Equal(0xFFFFFFFF95315A28UL, state.GPRRegs[5]);
Assert.Equal(0x000000005BACA1DFUL, state.GPRRegs[14]);
break;
}
case CICKeyType.CIC_X105:
{
AssertEqualMemoryReadU32(0xA4001004, 0x8DA807FC);
Assert.Equal(0x000000005493FB9AUL, state.GPRRegs[5]);
Assert.Equal(0xFFFFFFFFC2C20384UL, state.GPRRegs[14]);
break;
}
case CICKeyType.CIC_X106:
{
Assert.Equal(0xFFFFFFFFE067221FUL, state.GPRRegs[5]);
Assert.Equal(0x000000005CD2B70FUL, state.GPRRegs[14]);
break;
}
}
Assert.Equal(0x0000000000000001UL, state.GPRRegs[20]);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[23]);
Assert.Equal(0x0000000000000003UL, state.GPRRegs[24]);
Assert.Equal(0xFFFFFFFFA4001550UL, state.GPRRegs[31]);
break;
}
}
switch (cic)
{
case CICKeyType.CIC_X101:
{
Assert.Equal(0x000000000000003FUL, state.GPRRegs[22]);
break;
}
case CICKeyType.Unknown:
default:
case CICKeyType.CIC_X102:
{
Assert.Equal(0x0000000000000001UL, state.GPRRegs[1]);
Assert.Equal(0x000000000EBDA536UL, state.GPRRegs[2]);
Assert.Equal(0x000000000EBDA536UL, state.GPRRegs[3]);
Assert.Equal(0x000000000000A536UL, state.GPRRegs[4]);
Assert.Equal(0xFFFFFFFFED10D0B3UL, state.GPRRegs[12]);
Assert.Equal(0x000000001402A4CCUL, state.GPRRegs[13]);
Assert.Equal(0x000000003103E121UL, state.GPRRegs[15]);
Assert.Equal(0x000000000000003FUL, state.GPRRegs[22]);
Assert.Equal(0xFFFFFFFF9DEBB54FUL, state.GPRRegs[25]);
break;
}
case CICKeyType.CIC_X103:
{
Assert.Equal(0x0000000000000001UL, state.GPRRegs[1]);
Assert.Equal(0x0000000049A5EE96UL, state.GPRRegs[2]);
Assert.Equal(0x0000000049A5EE96UL, state.GPRRegs[3]);
Assert.Equal(0x000000000000EE96UL, state.GPRRegs[4]);
Assert.Equal(0xFFFFFFFFCE9DFBF7UL, state.GPRRegs[12]);
Assert.Equal(0xFFFFFFFFCE9DFBF7UL, state.GPRRegs[13]);
Assert.Equal(0x0000000018B63D28UL, state.GPRRegs[15]);
Assert.Equal(0x0000000000000078UL, state.GPRRegs[22]);
Assert.Equal(0xFFFFFFFF825B21C9UL, state.GPRRegs[25]);
break;
}
case CICKeyType.CIC_X105:
{
AssertEqualMemoryReadU32(0xA4001000, 0x3C0DBFC0);
AssertEqualMemoryReadU32(0xA4001008, 0x25AD07C0);
AssertEqualMemoryReadU32(0xA400100C, 0x31080080);
AssertEqualMemoryReadU32(0xA4001010, 0x5500FFFC);
AssertEqualMemoryReadU32(0xA4001014, 0x3C0DBFC0);
AssertEqualMemoryReadU32(0xA4001018, 0x8DA80024);
AssertEqualMemoryReadU32(0xA400101C, 0x3C0BB000);
Assert.Equal(0x0000000000000000UL, state.GPRRegs[1]);
Assert.Equal(0xFFFFFFFFF58B0FBFUL, state.GPRRegs[2]);
Assert.Equal(0xFFFFFFFFF58B0FBFUL, state.GPRRegs[3]);
Assert.Equal(0x0000000000000FBFUL, state.GPRRegs[4]);
Assert.Equal(0xFFFFFFFF9651F81EUL, state.GPRRegs[12]);
Assert.Equal(0x000000002D42AAC5UL, state.GPRRegs[13]);
Assert.Equal(0x0000000056584D60UL, state.GPRRegs[15]);
Assert.Equal(0x0000000000000091UL, state.GPRRegs[22]);
Assert.Equal(0xFFFFFFFFCDCE565FUL, state.GPRRegs[25]);
break;
}
case CICKeyType.CIC_X106:
{
Assert.Equal(0x0000000000000000UL, state.GPRRegs[1]);
Assert.Equal(0xFFFFFFFFA95930A4UL, state.GPRRegs[2]);
Assert.Equal(0xFFFFFFFFA95930A4UL, state.GPRRegs[3]);
Assert.Equal(0x00000000000030A4UL, state.GPRRegs[4]);
Assert.Equal(0xFFFFFFFFBCB59510UL, state.GPRRegs[12]);
Assert.Equal(0xFFFFFFFFBCB59510UL, state.GPRRegs[13]);
Assert.Equal(0x000000007A3C07F4UL, state.GPRRegs[15]);
Assert.Equal(0x0000000000000085UL, state.GPRRegs[22]);
Assert.Equal(0x00000000465E3F72UL, state.GPRRegs[25]);
break;
}
}
}
private Cartridge MockUpCartridge(RegionType region, CICKeyType cic)
{
var mockedCart = new Mock<Cartridge>();
var mockedCartRom = new Mock<ICartRom>();
var mockedBootRom = new Mock<IBootRom>();
GameSerial serial = new GameSerial(new Byte[] { 0x00, 00, 00, 00, 00, 00, 00, 00 });
MemoryStream stream = new MemoryStream();
for (Int32 i = 0; i < (1024 ^ 2); i++)
stream.WriteByte(0);
mockedBootRom.Setup<CICKeyType>(x => x.CIC).Returns(cic);
mockedBootRom.Setup<Int32>(x => x.BootChecksum).Returns(0x00);
mockedCartRom.Setup<PiBusSpeedConfig>(x => x.BusConfig).Returns(new PiBusSpeedConfig(0x80, 0x37, 0x12, 0x40));
mockedCartRom.Setup<String>(x => x.Name).Returns("MockedCartridge");
mockedCartRom.Setup<Int32>(x => x.Clockrate).Returns(60);
mockedCartRom.Setup<Int64>(x => x.EntryPoint).Returns(0x80000000);
mockedCartRom.Setup<GameSerial>(x => x.Serial).Returns(serial);
mockedCartRom.Setup<Int32>(x => x.CRC1).Returns(0x00);
mockedCartRom.Setup<Int32>(x => x.CRC2).Returns(0x00);
mockedCartRom.Setup<Boolean>(x => x.IsHeaderOnly).Returns(false);
mockedCartRom.Setup<IBootRom>(x => x.BootRomInformation).Returns(mockedBootRom.Object);
mockedCartRom.Setup<RegionType>(x => x.Region).Returns(region);
mockedCartRom.Setup<Stream>(x => x.RomStream).Returns(stream);
mockedCart.SetupProperty<Boolean>(c => c.IsOpened, true);
mockedCart.Setup<Stream>(c => c.PiCartridgeStream).Returns(stream);
mockedCart.Setup<ICartRom>(c => c.RomImage).Returns(mockedCartRom.Object);
return mockedCart.Object;
}
public static void SetupExecutionState(BootMode bootMode)
{
if (bootMode == BootMode.IPL_ROM)
{
throw new InvalidOperationException("Low-level IPL booting not supported yet");
//Machine.Current.RCP.State.PC = 0x1FC00000;
/* TODO:
* Schedule CPU and RCP threads to execute MIPS Interpreter
* Have CPU sit idle, and RCP execute the PIF Rom
* */
}
else if (bootMode == BootMode.HLE_IPL)
{
if (Machine.Current.DeviceRCP.Interface_Parallel.InsertedCartridge != null)
{
/* Code taken from mupen64plus-core on github */
ExecutionState state = Machine.Current.DeviceCPU.State;
state.PC = 0xA4000040;
/* PI Setup */
var pi = Machine.Current.Memory.PI;
PiBusSpeedConfig config = Cartridge.Current.RomImage.BusConfig;
pi.Domain1Latency = config.DeviceLatency;
pi.Domain1PageSize = config.PageSize;
pi.Domain1PulseWidth = config.PulseWidth;
pi.Domain1Release = config.ReleaseTime;
pi.Status.DataShared = 0;
/* TODO: sp_register.sp_status_reg = 1;
* rsp_register.rsp_pc = 0;
*
* ai_register.ai_dram_addr = 0;
* ai_register.ai_len = 0;
*
* vi_register.vi_v_intr = 1023;
* vi_register.vi_current = 0;
* vi_register.vi_h_start = 0;
*
* /* MI Setup */
var mi = Machine.Current.Memory.MI;
mi.VersionReg.DataToMaster = 0x02020102;
mi.VersionReg.DataToSlave &= ~(0x10U | 0x8U | 0x4U | 0x1U);
PifHleCopyBootRom();
state.GPRRegs[19] = 0; /* 0: Cart, 1: DiskDrive */
state.GPRRegs[20] = (UInt64)((Int32)Cartridge.Current.RomImage.Region) - 1;
state.GPRRegs[21] = 0; /* 0: ColdReset, 1: NMI */
state.GPRRegs[22] = (UInt64)Cartridge.Current.RomImage.BootRomInformation.CIC.Seed();
state.GPRRegs[23] = 0; /* S7: Unknown */
/* Required by CIC X105 */
BinaryWriter bw = new BinaryWriter(Machine.Current.Memory);
bw.BaseStream.Position = 0x04001000;
bw.Write(0x3c0dbfc0U);
bw.Write(0x8da807fcU);
bw.Write(0x25ad07c0U);
bw.Write(0x31080080U);
bw.Write(0x5500fffcU);
bw.Write(0x3c0dbfc0U);
bw.Write(0x8da80024U);
bw.Write(0x3c0bb000U);
/* Required by CIC X105 */
state.GPRRegs[11] = 0xffffffffa4000040UL; /* T3 */
state.GPRRegs[29] = 0xffffffffa4001ff0UL; /* SP */
state.GPRRegs[31] = 0xffffffffa4001550UL; /* RA */
}
else
{
logger.Warn("No cartridge inserted, skipping IPL boot");
Machine.Current.DeviceCPU.State.PC = 0xBFC00000;
}
logger.Debug("ROM Entry Point: " + Machine.Current.DeviceCPU.State.PC.ToString("X8"));
}
else if (bootMode == BootMode.HLE_IPL_OLD)
{
if (Machine.Current.DeviceRCP.Interface_Parallel.InsertedCartridge != null)
{
/* This is the older method of booting the emulator */
Machine.Current.DeviceCPU.State.PC = 0xA4000040;
/* This simulates the effects of the PIF Bootloader */
/* 1. Copy the game cartrdige boot rom into SP Memory
* 2. Load a snapshot of the CPU / Memory state generated by the real PIF boot sequence */
PifHleCopyBootRom();
using (Stream stream = typeof(SoftBootManager).Assembly.GetManifestResourceStream("Soft64.BootStateSnapshots.xml"))
{
CartridgeInfo info = Cartridge.Current.GetCartridgeInfo();
CICKeyType cic = Cartridge.Current.RomImage.BootRomInformation.CIC;
BootSnapReader bootsnap = new BootSnapReader(stream);
bootsnap.LoadBootSnap(cic, info.RegionCode);
}
}
else
{
logger.Warn("No cartridge inserted, skipping IPL boot");
Machine.Current.DeviceCPU.State.PC = 0xBFC00000;
}
logger.Debug("ROM Entry Point: " + Machine.Current.DeviceCPU.State.PC.ToString("X8"));
}
else
{
throw new ArgumentException("Unknown bootmode");
}
}
private void ComputeCICType()
{
Byte[] bootcodeBuffer = new Byte[Size];
using (MemoryStream ms = new MemoryStream(bootcodeBuffer))
{
CopyCode(ms);
}
Crc32HashAlgorithm alg = new Crc32HashAlgorithm();
alg.Initialize();
alg.ComputeHash(bootcodeBuffer);
switch (alg.CrcValue)
{
case 0x6170A4A1: m_CICType = CICKeyType.CIC_X101; break;
case 0x90BB6CB5: m_CICType = CICKeyType.CIC_X102; break;
case 0x0B050EE0: m_CICType = CICKeyType.CIC_X103; break;
case 0x98BC2C86: m_CICType = CICKeyType.CIC_X105; break;
case 0xACC8580A: m_CICType = CICKeyType.CIC_X106; break;
default: m_CICType = CICKeyType.Unknown; break;
}
m_BootChecksum = alg.CrcValue;
#if DEBUG
/* For future of converting the bootcode hashcodes to MD5 */
MD5 md5 = MD5.Create();
md5.Initialize();
md5.ComputeHash(bootcodeBuffer);
StringBuilder sb = new StringBuilder();
foreach (Byte b in md5.Hash)
{
sb.AppendFormat("{0:X2}", b);
}
Debug.WriteLine(String.Format("MD5 Checksum for CIC Type ({0}): {1}", m_CICType, sb.ToString()));
#endif
}
private Boolean CompareCic(String cicName, CICKeyType cic)
{
return(cic.ToString().Contains(cicName));
}