namespace MyNes.Core; [BoardInfo("20-in-1", 61)] internal class Mapper061 : Board { internal override void WritePRG(ref ushort address, ref byte data) { if ((address & 0x10) == 0) { Switch32KPRG(address & 0xF, PRGArea.Area8000); } else { Switch16KPRG(((address & 0xF) << 1) | ((address & 0x20) >> 5), PRGArea.Area8000); Switch16KPRG(((address & 0xF) << 1) | ((address & 0x20) >> 5), PRGArea.AreaC000); } Switch01KNMTFromMirroring(((address & 0x80) == 128) ? Mirroring.Horz : Mirroring.Vert); } }