Atri - implement mapper F6

This commit is contained in:
adelikat 2012-03-31 20:32:40 +00:00
parent 79782defbe
commit 7e30f2844f
4 changed files with 55 additions and 0 deletions

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@ -78,8 +78,10 @@
<Compile Include="Buffer.cs" />
<Compile Include="Consoles\Atari\2600\Atari2600.cs" />
<Compile Include="Consoles\Atari\2600\Atari2600.Core.cs" />
<Compile Include="Consoles\Atari\2600\Mappers\mCV.cs" />
<Compile Include="Consoles\Atari\2600\Mappers\m2K.cs" />
<Compile Include="Consoles\Atari\2600\Mappers\m4K.cs" />
<Compile Include="Consoles\Atari\2600\Mappers\mF6.cs" />
<Compile Include="Consoles\Atari\2600\Mappers\mF8.cs" />
<Compile Include="Consoles\Atari\2600\oldTIA.cs" />
<Compile Include="Consoles\Atari\2600\M6532.cs" />

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@ -3,6 +3,7 @@ using System.Collections.Generic;
using System.IO;
using BizHawk.Emulation.CPUs.M6502;
using BizHawk.Emulation.Consoles.Atari;
using BizHawk.Emulation.Consoles.Atari._2600;
namespace BizHawk
{
@ -109,7 +110,9 @@ namespace BizHawk
{
case "4K": mapper = new m4K(); break;
case "2K": mapper = new m2K(); break;
case "CV": mapper = new mCV(); break;
case "F8": mapper = new mF8(); break;
case "F6": mapper = new mF6(); break;
default: throw new InvalidOperationException("mapper not supported: " + game.GetOptionsDict()["m"]);
}
mapper.core = this;

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@ -0,0 +1,12 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BizHawk.Emulation.Consoles.Atari._2600
{
class mCV: MapperBase
{
}
}

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@ -0,0 +1,38 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BizHawk.Emulation.Consoles.Atari._2600
{
class mF6 : MapperBase
{
int toggle = 0;
public override byte ReadMemory(ushort addr)
{
Address(addr);
if (addr < 0x1000) return base.ReadMemory(addr);
return core.rom[toggle * 4 * 1024 + (addr & 0xFFF)];
}
public override void WriteMemory(ushort addr, byte value)
{
Address(addr);
if (addr < 0x1000) base.WriteMemory(addr, value);
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("toggle", ref toggle);
}
void Address(ushort addr)
{
if (addr == 0x1FF6) toggle = 0;
if (addr == 0x1FF7) toggle = 1;
if (addr == 0x1FF8) toggle = 2;
if (addr == 0x1FF9) toggle = 3;
}
}
}