public static void PowerOnR4300()
{
for (int i = 0; i < Registers.R4300.Reg.Length; ++i)
{
Registers.R4300.Reg[i] = 0; // Clear Registers
}
COP0.PowerOnCOP0();
COP1.PowerOnCOP1();
OpcodeTable.Init();
}
public static void InterpretOpcode(uint Opcode)
{
if (Registers.R4300.Reg[0] != 0)
{
Registers.R4300.Reg[0] = 0;
}
if (Registers.COP0.Reg[Registers.COP0.COUNT_REG] >= 0xFFFFFFFF)
{
Registers.COP0.Reg[Registers.COP0.COUNT_REG] = 0x0;
Count = 0x0;
}
OpcodeTable.OpcodeDesc Desc = new OpcodeTable.OpcodeDesc(Opcode);
OpcodeTable.InstInfo Info = OpcodeTable.GetOpcodeInfo(Opcode);
if (Common.Variables.Debug)
{
string ASM = string.Format(
Info.FormattedASM,
Desc.op1, Desc.op2, Desc.op3, Desc.op4,
Desc.Imm, Desc.Target);
Common.Logger.PrintInfoLine($"0x{Registers.R4300.PC:x}: {Convert.ToString(Opcode, 2).PadLeft(32, '0')}: {ASM}");
}
Info.Interpret(Desc);
CycleCounter += Info.Cycles;
Count += Info.Cycles;
Registers.COP0.Reg[Registers.COP0.COUNT_REG] = Count >> 1;
--Registers.COP0.Reg[Registers.COP0.RANDOM_REG];
if (Registers.COP0.Reg[Registers.COP0.RANDOM_REG] < Registers.COP0.Reg[Registers.COP0.WIRED_REG])
{
Registers.COP0.Reg[Registers.COP0.RANDOM_REG] = 0x1F; // TODO: Reset the Random Register to 0x1F after writing to the Wired Register.
}
Common.Measure.InstructionCount += 1;
Common.Measure.CycleCounter = CycleCounter;
}
public static void PowerOnR4300()
{
for (int i = 0; i < Registers.R4300.Reg.Length; ++i)
{
Registers.R4300.Reg[i] = 0; // Clear Registers.
}
uint RomType = 0; // 0 = Cart, 1 = DD
uint ResetType = 0; // 0 = Cold Reset, 1 = NMI, 2 = Reset to boot disk
uint osVersion = 0; // 00 = 1.0, 15 = 2.5, etc.
uint TVType = 1; // 0 = PAL, 1 = NTSC, 2 = MPAL
Registers.R4300.Reg[1] = 0x0000000000000001;
Registers.R4300.Reg[2] = 0x000000000EBDA536;
Registers.R4300.Reg[3] = 0x000000000EBDA536;
Registers.R4300.Reg[4] = 0x000000000000A536;
Registers.R4300.Reg[5] = 0xFFFFFFFFC0F1D859;
Registers.R4300.Reg[6] = 0xFFFFFFFFA4001F0C;
Registers.R4300.Reg[7] = 0xFFFFFFFFA4001F08;
Registers.R4300.Reg[8] = 0x00000000000000C0;
Registers.R4300.Reg[10] = 0x0000000000000040;
Registers.R4300.Reg[11] = 0xFFFFFFFFA4000040;
Registers.R4300.Reg[12] = 0xFFFFFFFFED10D0B3;
Registers.R4300.Reg[13] = 0x000000001402A4CC;
Registers.R4300.Reg[14] = 0x000000002DE108EA;
Registers.R4300.Reg[15] = 0x000000003103E121;
Registers.R4300.Reg[19] = RomType;
Registers.R4300.Reg[20] = TVType;
Registers.R4300.Reg[21] = ResetType;
Registers.R4300.Reg[22] = (GetCICSeed() >> 8) & 0xFF;
Registers.R4300.Reg[23] = osVersion;
Registers.R4300.Reg[25] = 0xFFFFFFFF9DEBB54F;
Registers.R4300.Reg[29] = 0xFFFFFFFFA4001FF0;
Registers.R4300.Reg[31] = 0xFFFFFFFFA4001550;
Registers.R4300.HI = 0x000000003FC18657;
Registers.R4300.LO = 0x000000003103E121;
Registers.R4300.PC = 0xA4000040;
memory.FastMemoryCopy(0xA4000000, 0xB0000000, 0xFFF); // Load the Boot Code into the correct memory address.
COP0.PowerOnCOP0();
COP1.PowerOnCOP1();
R4300_ON = true;
OpcodeTable.Init();
Thread CPUThread =
new Thread(() =>
{
Common.Measure.MeasureTime.Start();
while (R4300_ON)
{
uint Opcode = memory.ReadUInt32(Registers.R4300.PC);
InterpretOpcode(Opcode);
while (Common.Settings.STEP_MODE && !Common.Variables.Step)
{
;
}
if (Common.Settings.STEP_MODE)
{
Registers.R4300.PrintRegisterInfo();
Registers.COP0.PrintRegisterInfo();
Registers.COP1.PrintRegisterInfo();
Thread.Sleep(250);
Common.Variables.Step = false;
}
}
Common.Measure.MeasureTime.Stop();
});
CPUThread.Name = "R4300";
CPUThread.Start();
}
public static void InterpretOpcode(uint Opcode)
{
OpcodeTable.GetInterpreterMethod(Opcode)(new OpcodeTable.OpcodeDesc(Opcode));
}
