AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper070.cs

//////////////////////////////////////////////////////////////////////////
// Mapper070  Bandai 74161                                              //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
using BYTE = System.Byte;


namespace VirtualNes.Core
{
    public class Mapper070 : Mapper
    {
        BYTE patch;
        public Mapper070(NES parent) : base(parent)
        {
        }

        public override void Reset()
        {
            patch = 0;

            uint crc = nes.rom.GetPROM_CRC();

            if (crc == 0xa59ca2ef)
            {   // Kamen Rider Club(J)
                patch = 1;
                nes.SetRenderMethod(EnumRenderMethod.POST_ALL_RENDER);
            }
            if (crc == 0x10bb8f9a)
            {   // Family Trainer - Manhattan Police(J)
                patch = 1;
            }
            if (crc == 0x0cd00488)
            {   // Space Shadow(J)
                patch = 1;
            }

            SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
            SetVROM_8K_Bank(0);
        }

        //void Mapper070::Write(WORD addr, BYTE data)
        public override void Write(ushort addr, byte data)
        {
            SetPROM_16K_Bank(4, (data & 0x70) >> 4);
            SetVROM_8K_Bank(data & 0x0F);

            if (patch != 0)
            {
                if ((data & 0x80) != 0) SetVRAM_Mirror(VRAM_HMIRROR);
                else SetVRAM_Mirror(VRAM_VMIRROR);
            }
            else
            {
                if ((data & 0x80) != 0) SetVRAM_Mirror(VRAM_MIRROR4H);
                else SetVRAM_Mirror(VRAM_MIRROR4L);
            }
        }


    }
}