Exemplo n.º 1
0
        public void CanSetSpriteAtByteBorderBit()
        {
            var sprite = new byte[5];
            sprite[0] = 0xff;

            var display = new TestDisplay();

            var cpu = new CPU(new Memory(), display, null);
            cpu.SetSprite(8, 0, sprite, 1);

            // 0      1       2       3
            // 0000000011111110000000000000000
            // 0x0    0xff   0x0     0x0
            Assert.AreEqual(0xff, display.Screen[1]);
        }
Exemplo n.º 2
0
        public void CanSetSprite1()
        {
            var sprite = new byte[5];
            sprite[0] = 0x20;
            sprite[1] = 0x60;
            sprite[2] = 0x20;
            sprite[3] = 0x20;
            sprite[4] = 0x70;

            var display = new TestDisplay();

            var cpu = new CPU(new Memory(), display, null);
            cpu.SetSprite(4, 4, sprite, 5);

            display.Print();
        }
Exemplo n.º 3
0
        public void CanDetectCollisions()
        {
            var sprite = new byte[1];
            sprite[0] = 0x20; // 00100000 lsb = 00000100 msb
            var display = new TestDisplay();
            display.Screen[0] = 0x4; // 00100000 lsb
            var memory = new Memory();
            memory.LoadAt(sprite, 0x300);
            var cpu = new CPU(memory, display, new Keyboard());
            cpu.Register[0] = 0;
            cpu.Register[1] = 0;
            cpu.AddressRegister = 0x300;
            cpu.ProcessInstruction(0xd011);

            Assert.AreEqual(1, cpu.Register[0xf]);
        }
Exemplo n.º 4
0
            public void Run(string programpath)
            {
                var display = new ConsoleDisplay();
                var keyboard = new ConsoleKeyboard();
                memory = new Memory();
                cpu = new CPU(memory, display, keyboard);
                disassembler = new Disassembler();

                // Load ROM
                var romfile = File.OpenRead("ROM.bin");
                var rom = new byte[512];
                romfile.Read(rom, 0, 512);
                romfile.Close();
                memory.InitializeROM(rom);

                // Load Program
                var programfile = File.OpenRead(programpath);
                var program = new byte[3584];
                programfile.Read(program, 0, 3584);
                memory.LoadProgram(program);

                // Start clock
                Stopwatch sw = new Stopwatch();
                var cpuspeed = 6 * Stopwatch.Frequency / 1000;
                while (true){
                    var debug = keyboard.CheckKeys();
                    if (debug){
                        StartDebugging();
                        debug = false;
                        continue;
                    }

                    if(!sw.IsRunning || sw.ElapsedTicks > cpuspeed) {
                        cpu.Clock();
                        sw.Restart();
                    }
                }
            }
Exemplo n.º 5
0
        public void CanSetSpriteAtOddBit()
        {
            var sprite = new byte[5];
            sprite[0] = 0xff;

            var display = new TestDisplay();

            var cpu = new CPU(new Memory(), display, null);
            cpu.SetSprite(10, 0, sprite, 1);
            display.Print();
            // 0      1       2       3
            // 0000000000111111100000000000000
            // 0000000011111110000000011000000 msb -> lsb
            // 0x0    0x3f   0xc0     0x0

            Assert.AreEqual(0xfc, display.Screen[1]);
            Assert.AreEqual(0x03, display.Screen[2]);
        }
Exemplo n.º 6
0
        public void CanWrapSpriteAtY()
        {
            var sprite = new byte[5];
            sprite[0] = 0xff;
            sprite[1] = 0xff;

            var display = new TestDisplay();

            var cpu = new CPU(new Memory(), display, null);
            cpu.SetSprite(0, 31, sprite, 2);

            Assert.AreEqual(0xff, display.Screen[31*8]);
            Assert.AreEqual(0xff, display.Screen[0]);
        }
Exemplo n.º 7
0
        public void CanWrapSpriteAtX()
        {
            var sprite = new byte[5];
            sprite[0] = 0xff;

            var display = new TestDisplay();

            var cpu = new CPU(new Memory(), display, null);
            cpu.SetSprite(62, 0, sprite, 1);

            // 62        63      |64       65
            // 11111100 00000000 |00000000 00000011
            // 00111111 00000000 |00000000 11000000 lsb
            // 0xfc   0x0     0x0      0x3
            display.Print();
            Assert.AreEqual(0xc0, display.Screen[7]);
            Assert.AreEqual(0x3f, display.Screen[0]);
        }
Exemplo n.º 8
0
        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            SetContentView(Chip8Android.Resource.Layout.Main);
            SetClickHandler(Resource.Id.button0);
            SetClickHandler(Resource.Id.button1);
            SetClickHandler(Resource.Id.button2);
            SetClickHandler(Resource.Id.button3);
            SetClickHandler(Resource.Id.button4);
            SetClickHandler(Resource.Id.button5);
            SetClickHandler(Resource.Id.button6);
            SetClickHandler(Resource.Id.button7);
            SetClickHandler(Resource.Id.button8);
            SetClickHandler(Resource.Id.button9);
            SetClickHandler(Resource.Id.buttonA);
            SetClickHandler(Resource.Id.buttonB);
            SetClickHandler(Resource.Id.buttonC);
            SetClickHandler(Resource.Id.buttonD);
            SetClickHandler(Resource.Id.buttonE);
            SetClickHandler(Resource.Id.buttonF);

            Chip8View view = (Chip8View)FindViewById(Resource.Id.chip8view);

            var memory = new Memory();
            memory.InitializeInterpreterBuffer();
            int appno = 2;
            var apps = new string[]{
                "IBM Logo.ch8",
                "Brix.ch8",
                "Keypad Test.ch8",
                "Trip8 Demo.ch8"
            };

            var stream = Assets.Open(apps[appno]);
            byte[] buffer = new byte[3584];
            stream.Read(buffer, 0, 3584);
            memory.LoadProgram(buffer);
            keyboard = new KeyboardHandler();
            var chip8 = new CPU(memory, view, keyboard);

            timer = new System.Timers.Timer(1);
            timer.Elapsed += (sender, e) => chip8.Clock();
            timer.Enabled = true;

            //			GridView view = (GridView)FindViewById(Resource.Id.gridview);
            //			view.Adapter = new ImageAdapter(this.BaseContext);
        }