90 lines
1.5 KiB
C#
90 lines
1.5 KiB
C#
using BizHawk.Emulation.Common;
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namespace BizHawk.Emulation.Cores.Calculators
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{
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public partial class TI83 : IEmulator
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{
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public IEmulatorServiceProvider ServiceProvider { get; }
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public ControllerDefinition ControllerDefinition => TI83Controller;
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public bool FrameAdvance(IController controller, bool render, bool rendersound)
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{
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_controller = controller;
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_lagged = true;
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if (_tracer.Enabled)
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{
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_cpu.TraceCallback = s => _tracer.Put(s);
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}
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else
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{
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_cpu.TraceCallback = null;
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}
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_onPressed = controller.IsPressed("ON");
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if (_onPressed && ON_key_int_EN && !ON_key_int)
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{
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ON_key_int = true;
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_cpu.FlagI = true;
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}
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// see: http://wikiti.brandonw.net/index.php?title=83:Ports:04
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// for timer interrupt frequency
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// CPU frequency is 6MHz
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for (int i = 0; i < 100000; i++)
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{
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_cpu.ExecuteOne();
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TIM_count++;
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if (TIM_count >= TIM_hit)
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{
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TIM_count = 0;
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if (TIM_1_int_EN)
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{
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TIM_1_int = true;
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_cpu.FlagI = true;
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}
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}
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}
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Frame++;
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if (_lagged)
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{
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_lagCount++;
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}
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_isLag = _lagged;
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return true;
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}
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public int Frame
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{
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get { return _frame; }
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private set { _frame = value; }
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}
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public string SystemId => "TI83";
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public bool DeterministicEmulation => true;
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public void ResetCounters()
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{
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Frame = 0;
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_lagCount = 0;
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_isLag = false;
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}
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public CoreComm CoreComm { get; }
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public void Dispose()
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{
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}
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}
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}
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