AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper113.cs

////////////////////////////
// Mapper113  PC-Sachen/Hacker                                          //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;


namespace VirtualNes.Core
{
    public class Mapper113 : Mapper
    {
        public Mapper113(NES parent) : base(parent)
        {
        }

        public override void Reset()
        {
            //	SetPROM_32K_Bank( 0, 1, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
            SetPROM_32K_Bank(0);
            SetVROM_8K_Bank(0);
        }

        //void Mapper113::WriteLow(WORD addr, BYTE data)
        public override void WriteLow(ushort addr, byte data)
        {
            //DEBUGOUT( "$%04X:$%02X L=%3d\n", addr, data, nes.GetScanline() );
            switch (addr)
            {
                case 0x4100:
                case 0x4111:
                case 0x4120:
                case 0x4194:
                case 0x4195:
                case 0x4900:
                    if (nes.rom.GetPROM_CRC() == 0xA75AEDE5)
                    { // HES 6-in-1
                        if ((data & 0x80) != 0)
                        {
                            SetVRAM_Mirror(VRAM_VMIRROR);
                        }
                        else
                        {
                            SetVRAM_Mirror(VRAM_HMIRROR);
                        }
                    }
                    SetPROM_32K_Bank(data >> 3);
                    SetVROM_8K_Bank(((data >> 3) & 0x08) + (data & 0x07));
                    break;
            }
        }

        //void Mapper113::Write(WORD addr, BYTE data)
        public override void Write(ushort addr, byte data)
        {
            //DEBUGOUT( "$%04X:$%02X L=%3d\n", addr, data, nes.GetScanline() );
            switch (addr)
            {
                case 0x8008:
                case 0x8009:
                    SetPROM_32K_Bank(data >> 3);
                    SetVROM_8K_Bank(((data >> 3) & 0x08) + (data & 0x07));
                    break;
                case 0x8E66:
                case 0x8E67:
                    //SetVROM_8K_Bank((data & 0x07) ? 0 : 1);
                    SetVROM_8K_Bank((data & 0x07) != 0 ? 0 : 1);
                    break;
                case 0xE00A:
                    SetVRAM_Mirror(VRAM_MIRROR4L);
                    break;
            }
        }


    }
}