AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper246.cs

//////////////////////////////////////////////////////////////////////////
// Mapper246  Phone Serm Berm                                           //
//////////////////////////////////////////////////////////////////////////

using static VirtualNes.MMU;


namespace VirtualNes.Core
{
    public class Mapper246 : Mapper
    {
        public Mapper246(NES parent) : base(parent)
        {
        }


        //void Mapper246::Reset()
        public override void Reset()
        {
            SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
        }

        //void Mapper246::WriteLow(WORD addr, BYTE data)
        public override void WriteLow(ushort addr, byte data)
        {
            if (addr >= 0x6000 && addr < 0x8000)
            {
                switch (addr)
                {
                    case 0x6000:
                        SetPROM_8K_Bank(4, data);
                        break;
                    case 0x6001:
                        SetPROM_8K_Bank(5, data);
                        break;
                    case 0x6002:
                        SetPROM_8K_Bank(6, data);
                        break;
                    case 0x6003:
                        SetPROM_8K_Bank(7, data);
                        break;
                    case 0x6004:
                        SetVROM_2K_Bank(0, data);
                        break;
                    case 0x6005:
                        SetVROM_2K_Bank(2, data);
                        break;
                    case 0x6006:
                        SetVROM_2K_Bank(4, data);
                        break;
                    case 0x6007:
                        SetVROM_2K_Bank(6, data);
                        break;
                    default:
                        CPU_MEM_BANK[addr >> 13][addr & 0x1FFF] = data;
                        break;
                }
            }

        }
    }
}