71 lines
1.3 KiB
C#
71 lines
1.3 KiB
C#
//163 is for nanjing games
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using System;
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using System.IO;
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using System.Diagnostics;
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namespace BizHawk.Emulation.Consoles.Nintendo
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{
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class Mapper241 : NES.NESBoardBase
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{
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//configuration
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int prg_bank_mask_32k;
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//state
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ByteBuffer prg_banks_32k = new ByteBuffer(1);
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public override bool Configure(NES.EDetectionOrigin origin)
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{
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//configure
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switch (Cart.board_type)
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{
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case "MAPPER241":
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break;
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default:
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return false;
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}
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prg_bank_mask_32k = (Cart.prg_size / 32) - 1;
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prg_banks_32k[0] = 0;
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SetMirrorType(Cart.pad_h, Cart.pad_v);
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return true;
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}
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public override byte ReadEXP(int addr)
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{
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//some kind of magic number..
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return 0x50;
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}
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public override void WritePPU(int addr, byte value)
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{
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base.WritePPU(addr, value);
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}
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public override byte ReadPPU(int addr)
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{
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return base.ReadPPU(addr);
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}
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public override void WritePRG(int addr, byte value)
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{
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prg_banks_32k[0] = value;
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ApplyMemoryMapMask(prg_bank_mask_32k, prg_banks_32k);
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}
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public override byte ReadPRG(int addr)
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{
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addr = ApplyMemoryMap(15, prg_banks_32k, addr);
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return ROM[addr];
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}
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public override void SyncState(Serializer ser)
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{
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base.SyncState(ser);
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ser.Sync("prg_banks_32k", ref prg_banks_32k);
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}
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}
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}
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