forked from sin365/AxibugEmuOnline
71 lines
1.6 KiB
C#
71 lines
1.6 KiB
C#
using System.IO;
|
|
|
|
namespace MyNes.Core
|
|
{
|
|
[BoardInfo("Asder", 112)]
|
|
internal class Mapper112 : Board
|
|
{
|
|
private int address_A000;
|
|
|
|
internal override void HardReset()
|
|
{
|
|
base.HardReset();
|
|
Switch16KPRG(PRG_ROM_16KB_Mask, PRGArea.AreaC000);
|
|
}
|
|
|
|
internal override void WritePRG(ref ushort address, ref byte data)
|
|
{
|
|
switch (address & 0xE001)
|
|
{
|
|
case 32768:
|
|
address_A000 = data & 7;
|
|
break;
|
|
case 40960:
|
|
switch (address_A000)
|
|
{
|
|
case 0:
|
|
Switch08KPRG(data, PRGArea.Area8000);
|
|
break;
|
|
case 1:
|
|
Switch08KPRG(data, PRGArea.AreaA000);
|
|
break;
|
|
case 2:
|
|
Switch02KCHR(data >> 1, CHRArea.Area0000);
|
|
break;
|
|
case 3:
|
|
Switch02KCHR(data >> 1, CHRArea.Area0800);
|
|
break;
|
|
case 4:
|
|
Switch01KCHR(data, CHRArea.Area1000);
|
|
break;
|
|
case 5:
|
|
Switch01KCHR(data, CHRArea.Area1400);
|
|
break;
|
|
case 6:
|
|
Switch01KCHR(data, CHRArea.Area1800);
|
|
break;
|
|
case 7:
|
|
Switch01KCHR(data, CHRArea.Area1C00);
|
|
break;
|
|
}
|
|
break;
|
|
case 57344:
|
|
Switch01KNMTFromMirroring(((data & 1) == 1) ? Mirroring.Horz : Mirroring.Vert);
|
|
break;
|
|
}
|
|
}
|
|
|
|
internal override void WriteStateData(ref BinaryWriter stream)
|
|
{
|
|
base.WriteStateData(ref stream);
|
|
stream.Write(address_A000);
|
|
}
|
|
|
|
internal override void ReadStateData(ref BinaryReader stream)
|
|
{
|
|
base.ReadStateData(ref stream);
|
|
address_A000 = stream.ReadInt32();
|
|
}
|
|
}
|
|
}
|