114 lines
2.3 KiB
C#
114 lines
2.3 KiB
C#
using BizHawk.Emulation.Common;
|
|
using BizHawk.Common.NumberExtensions;
|
|
|
|
namespace BizHawk.Emulation.Cores.ColecoVision
|
|
{
|
|
public partial class ColecoVision : IEmulator
|
|
{
|
|
public IEmulatorServiceProvider ServiceProvider { get; }
|
|
|
|
public ControllerDefinition ControllerDefinition => ControllerDeck.Definition;
|
|
|
|
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;
|
|
|
|
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));
|
|
|
|
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 devies twice per scanline
|
|
if ((i==76) || (i==152))
|
|
{
|
|
PSG.Sample();
|
|
if (use_SGM) { SGM_sound.Sample(); }
|
|
}
|
|
}
|
|
|
|
_cpu.FlagI = false;
|
|
if (intPending && scanLine == 50)
|
|
{
|
|
if (_vdp.EnableInterrupts)
|
|
{
|
|
_cpu.FlagI = true;
|
|
intPending = false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (_isLag)
|
|
{
|
|
_lagCount++;
|
|
}
|
|
}
|
|
|
|
public bool use_SGM = false;
|
|
public bool is_MC = false;
|
|
public int MC_bank = 0;
|
|
public bool enable_SGM_high = false;
|
|
public bool enable_SGM_low = false;
|
|
public byte port_0x53, port_0x7F;
|
|
|
|
|
|
public int Frame => _frame;
|
|
|
|
public string SystemId => "Coleco";
|
|
|
|
public bool DeterministicEmulation => true;
|
|
|
|
public void ResetCounters()
|
|
{
|
|
_frame = 0;
|
|
_lagCount = 0;
|
|
_isLag = false;
|
|
}
|
|
|
|
public CoreComm CoreComm { get; }
|
|
|
|
public void Dispose()
|
|
{
|
|
}
|
|
}
|
|
}
|