AxibugEmuOnline/Core/VirtualNes.Core/Mapper/Mapper077.cs

//////////////////////////////////////////////////////////////////////////
// Mapper077  Irem Early Mapper #0                                      //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;


namespace VirtualNes.Core
{
    public class Mapper077 : Mapper
    {
        public Mapper077(NES parent) : base(parent)
        {
        }

        public override void Reset()
        {
            SetPROM_32K_Bank(0);

            SetVROM_2K_Bank(0, 0);
            SetCRAM_2K_Bank(2, 1);
            SetCRAM_2K_Bank(4, 2);
            SetCRAM_2K_Bank(6, 3);
        }

        //void Mapper077::Write(WORD addr, BYTE data)
        public override void Write(ushort addr, byte data)
        {
            SetPROM_32K_Bank(data & 0x07);

            SetVROM_2K_Bank(0, (data & 0xF0) >> 4);
        }


    }
}