private void DisplayState(MegadriveState state)
{
Console.WriteLine($"A0=${state.ReadAReg(0x0):X8} A1=${state.ReadAReg(0x1):X8}");
Console.WriteLine($"A2=${state.ReadAReg(0x2):X8} A3=${state.ReadAReg(0x3):X8}");
Console.WriteLine($"A4=${state.ReadAReg(0x4):X8} A5=${state.ReadAReg(0x5):X8}");
Console.WriteLine($"A6=${state.ReadAReg(0x6):X8} A7=${state.ReadAReg(0x7):X8}");
Console.WriteLine($"D0=${state.ReadDReg(0x0):X8} D1=${state.ReadDReg(0x1):X8}");
Console.WriteLine($"D2=${state.ReadDReg(0x2):X8} D3=${state.ReadDReg(0x3):X8}");
Console.WriteLine($"D4=${state.ReadDReg(0x4):X8} D5=${state.ReadDReg(0x5):X8}");
Console.WriteLine($"D6=${state.ReadDReg(0x6):X8} D7=${state.ReadDReg(0x7):X8}");
Console.WriteLine($"PC=${state.PC:X8} SR=${state.SR:X8}");
Console.WriteLine();
}
/// <summary>
/// Initializes a new instance of the <see cref="MegadriveDecoder"/> class.
/// </summary>
/// <param name="rom">rom data.</param>
public MegadriveDecoder(Data rom)
{
RomHeader h = new RomHeader(rom);
this.DisplayHeader(h);
ushort checksum = rom.Checksum(0x200);
string match = checksum == h.Checksum ? "match" : "invalid";
Console.WriteLine($"Calc Checksum:\t${checksum}\t{match}");
Console.WriteLine();
this.state = new MegadriveState(rom, h.Origin, h.SP, h.RomStart, h.RomEnd, h.RamStart, h.RamEnd);
this.disassembly = new Dictionary <uint, OpCode>();
}
