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NESHawk: Update Mapper 114

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alyosha-tas 2017-10-31 10:36:00 -04:00 committed by GitHub
parent dda86fce90
commit ec848f2c43
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1 changed files with 67 additions and 64 deletions
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131
BizHawk.Emulation.Cores/Consoles/Nintendo/NES/Boards/MMC3_family/Mapper114.cs
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@ -1,60 +1,63 @@
using BizHawk.Common; using BizHawk.Common;
using System; using System;
namespace BizHawk.Emulation.Cores.Nintendo.NES namespace BizHawk.Emulation.Cores.Nintendo.NES
{ {
// Mapper for Aladdin Super Game // Mapper for Aladdin Super Game
public sealed class Mapper114 : MMC3Board_Base public sealed class Mapper114 : MMC3Board_Base
{ {
private ByteBuffer EXPREGS = new ByteBuffer(2); private ByteBuffer EXPREGS = new ByteBuffer(2);
private byte[] sec = { 0, 3, 1, 5, 6, 7, 2, 4 }; private int prg_mask_16;
public override bool Configure(NES.EDetectionOrigin origin) private byte[] sec = { 0, 3, 1, 5, 6, 7, 2, 4 };
{
switch (Cart.board_type) public override bool Configure(NES.EDetectionOrigin origin)
{ {
switch (Cart.board_type)
{
case "MAPPER114": case "MAPPER114":
break; break;
default: default:
return false; return false;
} }
BaseSetup(); BaseSetup();
SetMirrorType(EMirrorType.Horizontal); SetMirrorType(EMirrorType.Horizontal);
mmc3.MMC3Type = MMC3.EMMC3Type.MMC3A; mmc3.MMC3Type = MMC3.EMMC3Type.MMC3A;
return true; prg_mask_16 = Cart.prg_size / 16 - 1;
} return true;
}
public override void Dispose()
{ public override void Dispose()
EXPREGS.Dispose();
base.Dispose();
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("expregs", ref EXPREGS);
}
public override void WriteEXP(int addr, byte value)
{ {
if ((addr & 0x7) == 0 && addr >= 0x1000) EXPREGS.Dispose();
{ base.Dispose();
EXPREGS[0] = value; }
}
} public override void SyncState(Serializer ser)
public override void WriteWRAM(int addr, byte value)
{ {
if ((addr & 0x7) == 0) base.SyncState(ser);
{ ser.Sync("expregs", ref EXPREGS);
EXPREGS[0] = value; }
}
} public override void WriteEXP(int addr, byte value)
{
public override void WritePRG(int addr, byte value) if ((addr & 0x7) == 0 && addr >= 0x1000)
{
EXPREGS[0] = value;
}
}
public override void WriteWRAM(int addr, byte value)
{
if ((addr & 0x7) == 0)
{
EXPREGS[0] = value;
}
}
public override void WritePRG(int addr, byte value)
{ {
switch (addr & 0x6000) switch (addr & 0x6000)
{ {
@ -85,20 +88,20 @@ namespace BizHawk.Emulation.Cores.Nintendo.NES
base.WritePRG(0x6000, value); base.WritePRG(0x6000, value);
} }
break; break;
} }
} }
public override byte ReadPRG(int addr) public override byte ReadPRG(int addr)
{ {
if ((EXPREGS[0] & 0x80) > 0) if ((EXPREGS[0] & 0x80) > 0)
{ {
var bank = (EXPREGS[0] & 0x1F); var bank = EXPREGS[0] & 0x1F & prg_mask_16;
return ROM[(bank << 14) + (addr & 0x3FFF)]; return ROM[(bank << 14) + (addr & 0x3FFF)];
} }
else else
{ {
return base.ReadPRG(addr); return base.ReadPRG(addr);
} }
} }
} }
} }