public Machine7800(Cart c, InputAdapter ia, int slines, int startl, int fHZ, int sRate, int[] p)
            : base(ia, slines, startl, fHZ, sRate, p, 320)
        {
            Mem = new AddressSpace(this, 16, 6);  // 7800: 16bit, 64byte pages

            _CPU = new M6502(Mem);
            _CPU.RunClocksMultiple = 4;

            Maria = new Maria(this);
            Mem.Map(0x0000, 0x0040, Maria);
            Mem.Map(0x0100, 0x0040, Maria);
            Mem.Map(0x0200, 0x0040, Maria);
            Mem.Map(0x0300, 0x0040, Maria);

            PIA = new PIA(this);
            Mem.Map(0x0280, 0x0080, PIA);
            Mem.Map(0x0480, 0x0080, PIA);
            Mem.Map(0x0580, 0x0080, PIA);  // unsure about this one

            RAM1 = new RAM6116();
            Mem.Map(0x1800, 0x0800, RAM1);

            RAM2 = new RAM6116();
            Mem.Map(0x2000, 0x0800, RAM2);
            Mem.Map(0x0040, 0x00c0, RAM2); // page 0 shadow
            Mem.Map(0x0140, 0x00c0, RAM2); // page 1 shadow
            Mem.Map(0x2800, 0x0800, RAM2); // shadow1
            Mem.Map(0x3000, 0x0800, RAM2); // shadow2
            Mem.Map(0x3800, 0x0800, RAM2); // shadow3

            // Insert the 7800 Highscore cartridge if requested
            if (EMU7800App.Instance.Settings.Use7800HSC)
            {
                HSC = new HSC7800();
                Mem.Map(0x1000, 0x800, HSC.SRAM);
                Mem.Map(0x3000, 0x1000, HSC);
                Trace.WriteLine("7800 Highscore Cartridge Installed");
            }

            Cart = c;
            Mem.Map(0x4000, 0xc000, Cart);
        }
        public Machine2600(Cart c, InputAdapter ia, int slines, int startl, int fHZ, int sRate, int[] p)
            : base(ia, slines, startl, fHZ, sRate, p, 160)
        {
            Mem = new AddressSpace(this, 13, 6);  // 2600: 13bit, 64byte pages

            _CPU = new M6502(Mem);
            _CPU.RunClocksMultiple = 1;

            TIA = new TIA(this);
            for (ushort i = 0; i < 0x1000; i += 0x100)
            {
                Mem.Map(i, 0x0080, TIA);
            }

            PIA = new PIA(this);
            for (ushort i = 0x0080; i < 0x1000; i += 0x100)
            {
                Mem.Map(i, 0x0080, PIA);
            }

            Mem.Map(0x1000, 0x1000, c);
        }
        public static string GetRegisters(M6502 cpu)
        {
            dSB = new StringBuilder();
            dSB.Append(String.Format(
                "PC:{0:x4} A:{1:x2} X:{2:x2} Y:{3:x2} S:{4:x2} P:",
                cpu.PC, cpu.A, cpu.X, cpu.Y, cpu.S));

            string flags = "nv0bdizcNV1BDIZC";

            for (int i = 0; i < 8; i++)
            {
                dSB.Append(((cpu.P & (1 << (7 - i))) == 0)
                    ? flags[i] : flags[i + 8]);
            }
            return dSB.ToString();
        }