AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper188.cs

57 lines
1.4 KiB
C#

//////////////////////////////////////////////////////////////////////////
// Mapper188 Bandai Karaoke Studio //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
namespace VirtualNes.Core
{
public class Mapper188 : Mapper
{
public Mapper188(NES parent) : base(parent)
{
}
public override void Reset()
{
if (PROM_8K_SIZE > 16)
{
SetPROM_32K_Bank(0, 1, 14, 15);
}
else
{
SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
}
}
//void Mapper188::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
if (data != 0)
{
if ((data & 0x10) != 0)
{
data &= 0x07;
SetPROM_16K_Bank(4, data);
}
else
{
SetPROM_16K_Bank(4, data + 8);
}
}
else
{
if (PROM_8K_SIZE == 0x10)
{
SetPROM_16K_Bank(4, 7);
}
else
{
SetPROM_16K_Bank(4, 8);
}
}
}
}
}