mirror of
https://github.com/MoleskiCoder/EightBitNet.git
synced 2024-12-23 17:31:33 +00:00
9a06b1743f
Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
51 lines
1.5 KiB
C#
51 lines
1.5 KiB
C#
namespace EightBit
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{
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using System;
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public sealed class InputOutput
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{
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private byte[] input;
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private byte[] output;
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public InputOutput()
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{
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input = new byte[0x100];
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output = new byte[0x100];
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}
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public event EventHandler<PortEventArgs> ReadingPort;
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public event EventHandler<PortEventArgs> ReadPort;
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public event EventHandler<PortEventArgs> WritingPort;
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public event EventHandler<PortEventArgs> WrittenPort;
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byte Read(byte port) { return ReadInputPort(port); }
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void Write(byte port, byte value) { WriteOutputPort(port, value); }
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byte ReadInputPort(byte port)
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{
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OnReadingPort(port);
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var value = input[port];
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OnReadPort(port);
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return value;
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}
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void WriteInputPort(byte port, byte value) => input[port] = value;
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byte ReadOutputPort(byte port) => output[port];
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void WriteOutputPort(byte port, byte value)
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{
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OnWritingPort(port);
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output[port] = value;
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OnWrittenPort(port);
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}
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private void OnReadingPort(byte port) => ReadingPort?.Invoke(this, new PortEventArgs(port));
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private void OnReadPort(byte port) => ReadPort?.Invoke(this, new PortEventArgs(port));
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private void OnWritingPort(byte port) => WritingPort?.Invoke(this, new PortEventArgs(port));
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private void OnWrittenPort(byte port) => WrittenPort?.Invoke(this, new PortEventArgs(port));
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}
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}
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