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NES - Mapper 78 implemented, Holy Diver & Uchuusen - Cosmo Carrier now work

This commit is contained in:
andres.delikat 2011-09-23 02:42:57 +00:00
parent 78e8e7a1a7
commit 0003b7320b
3 changed files with 99 additions and 1 deletions
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1
BizHawk.Emulation/BizHawk.Emulation.csproj
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@ -108,6 +108,7 @@
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper107.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper240.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper242.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\Mapper078.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\DRROM.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper095.cs" />
<Compile Include="Consoles\Nintendo\NES\Boards\MMC3_family\Mapper206.cs" />

2
BizHawk.Emulation/Consoles/Nintendo/Docs/compatibility.txt
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@ -65,7 +65,7 @@ Open bus and bus conflict emulation is not considered complete or thorough in an
075 VRC1 Nothing
076 Misc (J) Nothing
077 Misc (J) Nothing
078 Misc Nothing
078 Misc Complete
079 NINA-06 Complete
080 Misc (J) Nothing
082 Misc (J) Nothing

97
BizHawk.Emulation/Consoles/Nintendo/NES/Boards/Mapper078.cs Normal file
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@ -0,0 +1,97 @@
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace BizHawk.Emulation.Consoles.Nintendo
{
class Mapper078 : NES.NESBoardBase
{
bool holydiver;
int chr;
int prg_bank_mask_16k;
byte prg_bank_16k;
ByteBuffer prg_banks_16k = new ByteBuffer(2);
public override bool Configure(NES.EDetectionOrigin origin)
{
switch (Cart.board_type)
{
case "IREM-HOLYDIVER":
holydiver = true;
break;
case "JALECO-JF-16":
holydiver = false;
break;
default:
return false;
}
SetMirrorType(Cart.pad_h, Cart.pad_v);
prg_bank_mask_16k = (Cart.prg_size / 16) - 1;
prg_banks_16k[1] = 0xFF;
return true;
}
public override void Dispose()
{
prg_banks_16k.Dispose();
base.Dispose();
}
public override void SyncState(Serializer ser)
{
base.SyncState(ser);
ser.Sync("chr", ref chr);
ser.Sync("prg_bank_mask_16k", ref prg_bank_mask_16k);
ser.Sync("prg_bank_16k", ref prg_bank_16k);
ser.Sync("prg_banks_16k", ref prg_banks_16k);
}
void SyncPRG()
{
prg_banks_16k[0] = prg_bank_16k;
}
public override void WritePRG(int addr, byte value)
{
prg_bank_16k = (byte)(value & 7);
SyncPRG();
if (value.Bit(3))
{
if (holydiver)
SetMirrorType(EMirrorType.Horizontal);
else
SetMirrorType(EMirrorType.OneScreenA);
}
else
{
if (holydiver)
SetMirrorType(EMirrorType.Vertical);
else
SetMirrorType(EMirrorType.OneScreenB);
}
chr = (value >> 4);
}
public override byte ReadPRG(int addr)
{
int bank_16k = addr >> 14;
int ofs = addr & ((1 << 14) - 1);
bank_16k = prg_banks_16k[bank_16k];
bank_16k &= prg_bank_mask_16k;
addr = (bank_16k << 14) | ofs;
return ROM[addr];
}
public override byte ReadPPU(int addr)
{
if (addr < 0x2000)
return VROM[(addr & 0x1FFF) + (chr * 0x2000)];
else
return base.ReadPPU(addr);
}
}
}