Ejemplo n.º 1
0
        public void FrameAdvance(bool render, bool renderSound)
        {
            Cpu.Debug = Tracer.Enabled;
            Frame++;
            _isLag = true;
            PSG.BeginFrame(Cpu.TotalExecutedCycles);

            if (Cpu.Debug && Cpu.Logger == null)             // TODO, lets not do this on each frame. But lets refactor CoreComm/CoreComm first
            {
                Cpu.Logger = (s) => Tracer.Put(s);
            }

            byte temp_ret1 = ControllerDeck.ReadPort1(Controller, true, true);
            byte temp_ret2 = ControllerDeck.ReadPort2(Controller, true, true);

            bool Int_pending = (!temp_ret1.Bit(4)) | (!temp_ret2.Bit(4));

            VDP.ExecuteFrame(Int_pending);

            PSG.EndFrame(Cpu.TotalExecutedCycles);

            if (_isLag)
            {
                _lagCount++;
            }
        }
Ejemplo n.º 2
0
        public void FrameAdvance(IController controller, bool render, bool renderSound)
        {
            _controller = controller;
            _cpu.Debug  = _tracer.Enabled;
            _frame++;
            _isLag = true;
            PSG.BeginFrame(_cpu.TotalExecutedCycles);

            if (_cpu.Debug && _cpu.Logger == null)             // TODO, lets not do this on each frame. But lets refactor CoreComm/CoreComm first
            {
                _cpu.Logger = (s) => _tracer.Put(s);
            }

            byte tempRet1 = ControllerDeck.ReadPort1(controller, true, true);
            byte tempRet2 = ControllerDeck.ReadPort2(controller, true, true);

            bool intPending = (!tempRet1.Bit(4)) | (!tempRet2.Bit(4));

            _vdp.ExecuteFrame(intPending);

            PSG.EndFrame(_cpu.TotalExecutedCycles);

            if (_isLag)
            {
                _lagCount++;
            }
        }
Ejemplo n.º 3
0
        public void get_controller_state()
        {
            ushort port1 = ControllerDeck.ReadPort1(Controller);

            _psg.Register[14] = (ushort)(0xFF - port1);

            ushort port2 = ControllerDeck.ReadPort2(Controller);

            _psg.Register[15] = (ushort)(0xFF - port2);
        }
Ejemplo n.º 4
0
        byte ReadController2()
        {
            _isLag = false;
            byte retval;

            if (InputPortSelection == InputPortMode.Left)
            {
                retval = ControllerDeck.ReadPort2(Controller, true, false);
                return(retval);
            }

            if (InputPortSelection == InputPortMode.Right)
            {
                retval = ControllerDeck.ReadPort2(Controller, false, false);
                return(retval);
            }
            return(0x7F);
        }
Ejemplo n.º 5
0
        public void FrameAdvance(IController controller, bool render, bool renderSound)
        {
            _controller = controller;

            // NOTE: Need to research differences between reset and power cycle
            if (_controller.IsPressed("Power"))
            {
                HardReset();
            }

            if (_controller.IsPressed("Reset"))
            {
                SoftReset();
            }

            _frame++;
            _isLag = true;
            PSG.BeginFrame(_cpu.TotalExecutedCycles);

            if (_tracer.Enabled)
            {
                _cpu.TraceCallback = s => _tracer.Put(s);
            }
            else
            {
                _cpu.TraceCallback = null;
            }
            byte tempRet1 = ControllerDeck.ReadPort1(controller, true, true);
            byte tempRet2 = ControllerDeck.ReadPort2(controller, true, true);

            bool intPending = (!tempRet1.Bit(4)) | (!tempRet2.Bit(4));

            _vdp.ExecuteFrame(intPending);

            PSG.EndFrame(_cpu.TotalExecutedCycles);

            if (_isLag)
            {
                _lagCount++;
            }
        }
Ejemplo n.º 6
0
        public void FrameAdvance(IController controller, bool render, bool renderSound)
        {
            _controller = controller;

            // NOTE: Need to research differences between reset and power cycle
            if (_controller.IsPressed("Power"))
            {
                HardReset();
            }

            if (_controller.IsPressed("Reset"))
            {
                SoftReset();
            }

            _cpu.Debug = _tracer.Enabled;
            _frame++;
            _isLag = true;
            PSG.BeginFrame(_cpu.TotalExecutedCycles);

            if (_cpu.Debug && _cpu.Logger == null)             // TODO, lets not do this on each frame. But lets refactor CoreComm/CoreComm first
            {
                _cpu.Logger = (s) => _tracer.Put(s);
            }

            byte tempRet1 = ControllerDeck.ReadPort1(controller, true, true);
            byte tempRet2 = ControllerDeck.ReadPort2(controller, true, true);

            bool intPending = (!tempRet1.Bit(4)) | (!tempRet2.Bit(4));

            _vdp.ExecuteFrame(intPending);

            PSG.EndFrame(_cpu.TotalExecutedCycles);

            if (_isLag)
            {
                _lagCount++;
            }
        }
        public bool FrameAdvance(IController controller, bool render, bool renderSound)
        {
            _controller = controller;

            // NOTE: Need to research differences between reset and power cycle
            if (_controller.IsPressed("Power"))
            {
                HardReset();
            }

            if (_controller.IsPressed("Reset"))
            {
                SoftReset();
            }

            _frame++;

            _isLag = true;
            if (_tracer.Enabled)
            {
                _cpu.TraceCallback = s => _tracer.Put(s);
            }
            else
            {
                _cpu.TraceCallback = null;
            }
            byte tempRet1 = ControllerDeck.ReadPort1(controller, true, false);
            byte tempRet2 = ControllerDeck.ReadPort2(controller, true, false);

            bool intPending = false;

            // the return values represent the controller's current state, but the sampling rate is not high enough
            // to catch all changes in wheel orientation
            // so we use the wheel variable and interpolate between frames

            // first determine how many degrees the wheels changed, and how many regions have been traversed
            float change1 = (float)(((ControllerDeck.wheel1 - ControllerDeck.temp_wheel1) % 180) / 1.25);
            float change2 = (float)(((ControllerDeck.wheel2 - ControllerDeck.temp_wheel2) % 180) / 1.25);

            // special cases
            if ((ControllerDeck.temp_wheel1 > 270) && (ControllerDeck.wheel1 < 90))
            {
                change1 = (float)((ControllerDeck.wheel1 + (360 - ControllerDeck.temp_wheel1)) / 1.25);
            }

            if ((ControllerDeck.wheel1 > 270) && (ControllerDeck.temp_wheel1 < 90))
            {
                change1 = -(float)((ControllerDeck.temp_wheel1 + (360 - ControllerDeck.wheel1)) / 1.25);
            }

            if ((ControllerDeck.temp_wheel2 > 270) && (ControllerDeck.wheel2 < 90))
            {
                change2 = (float)((ControllerDeck.wheel2 + (360 - ControllerDeck.temp_wheel2)) / 1.25);
            }

            if ((ControllerDeck.wheel2 > 270) && (ControllerDeck.temp_wheel2 < 90))
            {
                change2 = -(float)((ControllerDeck.temp_wheel2 + (360 - ControllerDeck.wheel2)) / 1.25);
            }

            int changes1 = change1 > 0 ? (int)Math.Floor(change1) : (int)Math.Ceiling(change1);
            int changes2 = change2 > 0 ? (int)Math.Floor(change2) : (int)Math.Ceiling(change2);

            for (int scanLine = 0; scanLine < 262; scanLine++)
            {
                _vdp.RenderScanline(scanLine);

                if (scanLine == 192)
                {
                    _vdp.InterruptPending = true;

                    if (_vdp.EnableInterrupts)
                    {
                        _cpu.NonMaskableInterrupt = true;
                    }
                }

                for (int i = 0; i < 228; i++)
                {
                    PSG.generate_sound(1);
                    if (use_SGM)
                    {
                        SGM_sound.generate_sound(1);
                    }
                    _cpu.ExecuteOne();

                    // pick out sound samples from the sound devices twice per scanline
                    int v = PSG.Sample();

                    if (use_SGM)
                    {
                        v += SGM_sound.Sample();
                    }

                    if (v != _latchedSample)
                    {
                        _blip.AddDelta((uint)_sampleClock, v - _latchedSample);
                        _latchedSample = v;
                    }

                    _sampleClock++;
                }

                // starting from scanline 20, changes to the wheel are added once per scanline (up to 144)
                if (scanLine > 20)
                {
                    if (changes1 != 0)
                    {
                        if (changes1 > 0)
                        {
                            ControllerDeck.temp_wheel1 = (float)((ControllerDeck.temp_wheel1 + 1.25) % 360);
                            changes1--;
                        }
                        else
                        {
                            ControllerDeck.temp_wheel1 = (float)((ControllerDeck.temp_wheel1 - 1.25) % 360);
                            changes1++;
                        }
                    }

                    if (changes2 != 0)
                    {
                        if (changes2 > 0)
                        {
                            ControllerDeck.temp_wheel2 = (float)((ControllerDeck.temp_wheel2 + 1.25) % 360);
                            changes2--;
                        }
                        else
                        {
                            ControllerDeck.temp_wheel2 = (float)((ControllerDeck.temp_wheel2 - 1.25) % 360);
                            changes2++;
                        }
                    }
                }

                tempRet1 = ControllerDeck.ReadPort1(controller, true, true);
                tempRet2 = ControllerDeck.ReadPort2(controller, true, true);

                intPending = (!tempRet1.Bit(4) && temp_1_prev) | (!tempRet2.Bit(4) && temp_2_prev);

                _cpu.FlagI = false;
                if (intPending)
                {
                    _cpu.FlagI = true;
                    intPending = false;
                }

                temp_1_prev = tempRet1.Bit(4);
                temp_2_prev = tempRet2.Bit(4);
            }

            ControllerDeck.temp_wheel1 = ControllerDeck.wheel1;
            ControllerDeck.temp_wheel2 = ControllerDeck.wheel2;

            if (_isLag)
            {
                _lagCount++;
            }

            return(true);
        }