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refactor Via.Port from an abstract class to interface, require inheriting classes to implement SyncState, and of course, don't use SyncObject

This commit is contained in:
adelikat 2017-05-13 11:10:37 -05:00
parent 4d7afaa70a
commit 2840b69e41
2 changed files with 40 additions and 31 deletions
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67
BizHawk.Emulation.Cores/Computers/Commodore64/MOS/Via.Port.cs
View File

@ -1,51 +1,49 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using BizHawk.Common;
using BizHawk.Emulation.Cores.Computers.Commodore64.Media;
namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
{
public sealed partial class Via
{
private abstract class Port
private interface IPort
{
public abstract int ReadPra(int pra, int ddra);
public abstract int ReadPrb(int prb, int ddrb);
public abstract int ReadExternalPra();
public abstract int ReadExternalPrb();
int ReadPra(int pra, int ddra);
int ReadPrb(int prb, int ddrb);
int ReadExternalPra();
int ReadExternalPrb();
public void SyncState(Serializer ser)
{
SaveState.SyncObject(ser, this);
}
void SyncState(Serializer ser);
}
private sealed class DisconnectedPort : Port
private sealed class DisconnectedPort : IPort
{
public override int ReadPra(int pra, int ddra)
public int ReadPra(int pra, int ddra)
{
return (pra | ~ddra) & 0xFF;
}
public override int ReadPrb(int prb, int ddrb)
public int ReadPrb(int prb, int ddrb)
{
return (prb | ~ddrb) & 0xFF;
}
public override int ReadExternalPra()
public int ReadExternalPra()
{
return 0xFF;
}
public override int ReadExternalPrb()
public int ReadExternalPrb()
{
return 0xFF;
}
public void SyncState(Serializer ser)
{
// Do nothing
}
}
private sealed class DriverPort : Port
private sealed class DriverPort : IPort
{
private readonly Func<int> _readPrA;
private readonly Func<int> _readPrB;
@ -56,33 +54,39 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
_readPrB = readPrB;
}
public override int ReadPra(int pra, int ddra)
public int ReadPra(int pra, int ddra)
{
return _readPrA();
}
public override int ReadPrb(int prb, int ddrb)
public int ReadPrb(int prb, int ddrb)
{
return (prb & ddrb) | (_readPrB() & ~ddrb);
}
public override int ReadExternalPra()
public int ReadExternalPra()
{
return _readPrA();
}
public override int ReadExternalPrb()
public int ReadExternalPrb()
{
return _readPrB();
}
public void SyncState(Serializer ser)
{
// Do nothing
}
}
private sealed class IecPort : Port
private sealed class IecPort : IPort
{
private readonly Func<bool> _readClock;
private readonly Func<bool> _readData;
private readonly Func<bool> _readAtn;
private readonly int _driveNumber;
private int _driveNumber;
public IecPort(Func<bool> readClock, Func<bool> readData, Func<bool> readAtn, int driveNumber)
{
@ -92,12 +96,12 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
_driveNumber = (driveNumber & 0x3) << 5;
}
public override int ReadPra(int pra, int ddra)
public int ReadPra(int pra, int ddra)
{
return (pra | ~ddra) & 0xFF;
}
public override int ReadPrb(int prb, int ddrb)
public int ReadPrb(int prb, int ddrb)
{
return (prb & ddrb) |
(~ddrb & 0xE5 & (
@ -108,12 +112,12 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
);
}
public override int ReadExternalPra()
public int ReadExternalPra()
{
return 0xFF;
}
public override int ReadExternalPrb()
public int ReadExternalPrb()
{
return
(_readClock() ? 0x04 : 0x00) |
@ -121,6 +125,11 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
(_readAtn() ? 0x80 : 0x00) |
_driveNumber;
}
public void SyncState(Serializer ser)
{
ser.Sync("_driveNumber", ref _driveNumber);
}
}
}
}

4
BizHawk.Emulation.Cores/Computers/Commodore64/MOS/Via.cs
View File

@ -61,7 +61,7 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
[SaveState.SaveWithName("InterruptEnableRegister")]
private int _ier;
[SaveState.SaveWithName("Port")]
private readonly Port _port;
private readonly IPort _port;
[SaveState.SaveWithName("PortLatchA")]
private int _paLatch;
@ -421,7 +421,7 @@ namespace BizHawk.Emulation.Cores.Computers.Commodore64.MOS
ser.Sync("InterruptEnableRegister", ref _ier);
ser.BeginSection("Port");
_port.SyncState(ser); // TODO
_port.SyncState(ser);
ser.EndSection();