43 lines
984 B
C#
43 lines
984 B
C#
using System.IO;
|
|
|
|
namespace MyNes.Core
|
|
{
|
|
[BoardInfo("Unknown", 232)]
|
|
internal class Mapper232 : Board
|
|
{
|
|
private int prg_reg;
|
|
|
|
internal override void HardReset()
|
|
{
|
|
base.HardReset();
|
|
Switch16KPRG(3, PRGArea.AreaC000);
|
|
}
|
|
|
|
internal override void WritePRG(ref ushort address, ref byte data)
|
|
{
|
|
if (address < 49152)
|
|
{
|
|
prg_reg = ((data & 0x18) >> 1) | (prg_reg & 3);
|
|
}
|
|
else
|
|
{
|
|
prg_reg = (prg_reg & 0xC) | (data & 3);
|
|
}
|
|
Switch16KPRG(prg_reg, PRGArea.Area8000);
|
|
Switch16KPRG(3 | (prg_reg & 0xC), PRGArea.AreaC000);
|
|
}
|
|
|
|
internal override void WriteStateData(ref BinaryWriter stream)
|
|
{
|
|
base.WriteStateData(ref stream);
|
|
stream.Write(prg_reg);
|
|
}
|
|
|
|
internal override void ReadStateData(ref BinaryReader stream)
|
|
{
|
|
base.ReadStateData(ref stream);
|
|
prg_reg = stream.ReadInt32();
|
|
}
|
|
}
|
|
}
|