Наследование: C64Lib.Memory.Base.RamBase
Пример #1
0
        bool write_protected; // Flag: Disk write-protected

        #endregion Fields

        #region Constructors

        public Job1541(Drive1541Ram RAM)
        {
            ram = RAM;

            the_file = null;

            gcr_data = new byte[GCR_DISK_SIZE];
            gcr_ptr = gcr_track_start = 0;
            gcr_track_end = gcr_track_start + GCR_TRACK_SIZE;
            current_halftrack = 2;

            disk_changed = true;

            // TODO
            //if (GlobalPrefs.ThePrefs.Emul1541Proc)
            //    open_d64_file(GlobalPrefs.ThePrefs.DrivePath[0]);
        }
Пример #2
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        MOS6526_2 _TheCIA2; // Pointer to C64 CIA 2

        #endregion Fields

        #region Constructors

        public MOS6502_1541(C64 c64, Job1541 job, C64Display disp, Drive1541Ram Ram, Drive1541Rom Rom)
        {
            the_c64 = c64;
            the_job = job;
            the_display = disp;
            ram = Ram;
            rom = Rom;

            a = x = y = 0;
            sp = 0xff;
            n_flag = z_flag = 0;
            v_flag = d_flag = c_flag = false;
            i_flag = true;

            via1_t1c = via1_t1l = via1_t2c = via1_t2l = 0;
            via1_sr = 0;
            via2_t1c = via2_t1l = via2_t2c = via2_t2l = 0;
            via2_sr = 0;

            first_irq_cycle = 0;
            Idle = false;
        }
Пример #3
0
        public C64(EmulatorIOAdapter ioAdapter)
        {
            int i, j;

            emulationSpeed = 0.0f;

            // The thread is not yet running
            thread_running = false;
            quit_thyself = false;
            have_a_break = false;

            // Open display
            TheDisplay = new C64Display(this, ioAdapter);

            // Allocate RAM/ROM memory
            //RAM = new byte[0x10000];

            _ram = new SystemRam();
            _colorRam = new ColorRam();

            _basicRom = new BasicRom();
            _kernalRom = new KernalRom();
            _characterRom = new CharacterRom();

            //Basic = new byte[0x2000];
            //Kernal = new byte[0x2000];
            //Char = new byte[0x1000];
            //Color = new byte[0x0400];

            _ram1541 = new Drive1541Ram();
            _rom1541 = new Drive1541Rom();

            //RAM1541 = new byte[0x0800];
            //ROM1541 = new byte[0x4000];

            // Create the chips
            TheCPU = new MOS6510(this, RAM, Basic, Kernal, Char, Color);

            TheJob1541 = new Job1541(_ram1541);
            TheCPU1541 = new MOS6502_1541(this, TheJob1541, TheDisplay, _ram1541, _rom1541);

            TheVIC = TheCPU.TheVIC = new MOS6569(this, TheDisplay, TheCPU, RAM, Char, Color);
            TheSID = TheCPU.TheSID = new MOS6581(this);
            TheCIA1 = TheCPU.TheCIA1 = new MOS6526_1(TheCPU, TheVIC);
            TheCIA2 = TheCPU.TheCIA2 = TheCPU1541.TheCIA2 = new MOS6526_2(TheCPU, TheVIC, TheCPU1541);
            TheIEC = TheCPU.TheIEC = new IEC(TheDisplay);
            TheREU = TheCPU.TheREU = new REU(TheCPU);

            _ram.InitializeWithPowerUpPattern();
            _colorRam.InitializeWithRandomValues();

            TheDisplay.Initialize();

            #if false
            //unsafe
            //{
            //    fixed (byte* pRAM = RAM, pColor = Color)
            //    {
            //        byte* p = pRAM;
            //        // Initialize RAM with powerup pattern
            //        for (i = 0; i < 512; i++)
            //        {
            //            for (j = 0; j < 64; j++)
            //                *p++ = 0;
            //            for (j = 0; j < 64; j++)
            //                *p++ = 0xff;
            //        }

            //        Random rand = new Random();
            //        p = pColor;
            //        // Initialize color RAM with random values
            //        for (i = 0; i < 1024; i++)
            //            *p++ = (byte)(rand.Next() & 0x0f);
            //    }
            //}
            #endif

            // Open joystick drivers if required
            open_close_joysticks(false, false, GlobalPrefs.ThePrefs.Joystick1On, GlobalPrefs.ThePrefs.Joystick2On);
            joykey = 0xff;

            CycleCounter = 0;

            // No need to check for state change.
            state_change = false;

            // TODO
            frameTimer.Reset();
            frameTimer.Start();
        }