public void SetRegisterByName(string registerName, object value)
{
object boxed = (object)Registers;
Registers.GetType().GetField(registerName).SetValue(boxed, value);
Registers = (RegisterStruct)boxed;
}
public int ExecuteInstruction()
{
if (SingleStep || Breakpoints.Contains(Registers.PC) || (HLBreak && Registers.HL != oldReg.HL && !IgnoreChangeAddrs.Contains(Registers.PC)))
{
if (Breakpoints.Contains(Registers.PC))
{
Console.WriteLine($"Hit breakpoint at 0x{Registers.PC:x}");
}
if (Registers.HL != oldReg.HL)
{
Console.WriteLine($"Written ${Registers.HL:X} to HL (was {oldReg.HL:X})");
}
SingleStep = true;
bool waiting = true;
while (waiting)
{
ConsoleKeyInfo keyInfo = Console.ReadKey();
int currentLineCursor = Console.CursorTop;
Console.SetCursorPosition(0, Console.CursorTop);
Console.Write(new string(' ', 3));
Console.SetCursorPosition(0, currentLineCursor);
switch (keyInfo.KeyChar)
{
case 'a':
{
Console.Write("Addr> 0x");
string strAddr = Console.ReadLine();
try
{
ushort readAddr = Convert.ToUInt16(strAddr, 16);
{
byte bValue = Memory[readAddr];
Memory.Read(out ushort val, readAddr);
Console.WriteLine($"byte: 0x{bValue:X}\nushort: 0x{val:x}");
}
} catch { }
break;
}
case 'b':
{
Console.Write("Toggle breakpoint at> 0x");
string strAddr = Console.ReadLine();
try
{
ushort readAddr = Convert.ToUInt16(strAddr, 16);
{
if (Breakpoints.Contains(readAddr))
{
Breakpoints.Remove(readAddr);
Console.WriteLine($"Removed breakpoint at 0x{readAddr:x}");
}
else
{
Breakpoints.Add(readAddr);
Console.WriteLine($"Added breakpoint at 0x{readAddr:x}");
}
}
} catch { }
break;
}
case 'c':
{
SingleStep = false;
waiting = false;
if (!IgnoreChangeAddrs.Contains(Registers.PC))
{
IgnoreChangeAddrs.Add(Registers.PC);
}
break;
}
case 'd':
{
Console.Write("Path for dump> ");
string path = Console.ReadLine();
using (System.IO.FileStream fs = System.IO.File.Create(path))
{
Memory.DumpMemory(fs);
}
break;
}
case 'n':
{
waiting = false;
break;
}
case 'i':
{
Console.WriteLine($"Regs: A:{Registers.A:X} B:{Registers.B:X} C:{Registers.C:X} D:{Registers.D:X} E:{Registers.E:X} F:{Registers.F:X} H:{Registers.H:X} L:{Registers.L:X}\nRegs: AF:{Registers.AF:X} BC:{Registers.BC:X} DE:{Registers.DE:X} HL:{Registers.HL:X}\nRegs: PC:{Registers.PC:X} SP:{Registers.SP:X}");
break;
}
case 'q':
{
System.Environment.Exit(1);
break;
}
}
SDL2.SDL.SDL_Delay(100);
}
}
if (((IFVBlank && IEVBlank) || (IFLCDStat && IELCDStat) || (IFTimer && IETimer) || (IFSerial && IESerial) || (IFJoypad && IEJoypad)) && IME)
{
IME = false;
this.StackPush(Registers.PC);
ushort target = 0;
if (IFJoypad && IEJoypad)
{
target = 0x60;
}
if (IFSerial && IESerial)
{
target = 0x58;
}
if (IFTimer && IETimer)
{
target = 0x50;
}
if (IFLCDStat && IELCDStat)
{
target = 0x48;
}
if (IFVBlank && IEVBlank)
{
target = 0x40;
}
Console.WriteLine($"Executing Interrupt! Target: 0x{target:x}");
Memory.Read(out Registers.PC, target);
return(5 * 4);
}
else
{
oldReg = Registers;
byte opcodeRaw = Memory[Registers.PC];
ushort operandAddr = (ushort)(Registers.PC + 1);
Memory.Read(out ushort maybeUshortArgLog, operandAddr);
if (Opcodes.List.TryGetValue(opcodeRaw, out CurrentInst))
{
Console.WriteLine($"0x{Registers.PC:x}: {CurrentInst.Mneumonic}".Replace("a8", $"a8<0x{Memory[operandAddr]:x}>").Replace("a16", $"a16<0x{maybeUshortArgLog:x}>").Replace("d8", $"d8<0x{Memory[operandAddr]:x}>").Replace("d16", $"d16<0x{maybeUshortArgLog:x}>"));
CurrentInst.Execute(this);
Registers.PC += CurrentInst.EffectiveLength;
return(CurrentInst.Cycles);
}
else
{
Program.DumpStuffException();
throw new NotImplementedException($"OPCode 0x{opcodeRaw:X}");
}
}
}