67 lines
1.5 KiB
C#
67 lines
1.5 KiB
C#
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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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public class NES_QJ : MMC3Board_Base
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{
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//state
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int block;
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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("block", ref block);
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}
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public override void WritePRG(int addr, byte value)
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{
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base.WritePRG(addr, value);
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SetMirrorType(mmc3.MirrorType); //often redundant, but gets the job done
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}
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public override bool Configure(NES.EDetectionOrigin origin)
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{
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//analyze board type
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switch (Cart.board_type)
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{
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case "NES-QJ": //super spike v'ball / nintendo world cup
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AssertPrg(256); AssertChr(256); AssertVram(0); AssertWram(0);
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AssertBattery(false);
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break;
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default:
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return false;
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}
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BaseSetup();
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return true;
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}
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protected override int Get_PRGBank_8K(int addr)
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{
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//base logic will return the mmc reg, which needs to be masked without awareness of the extra block
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return (base.Get_PRGBank_8K(addr) & 0xF) + block * 16;
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}
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protected override int Get_CHRBank_1K(int addr)
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{
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//base logic will return the mmc reg, which needs to be masked without awareness of the extra block
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return (base.Get_CHRBank_1K(addr) & 0x7F) + block * 128;
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}
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public override byte ReadWRAM(int addr)
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{
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return (byte)block;
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}
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public override void WriteWRAM(int addr, byte value)
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{
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if (mmc3.wram_enable && !mmc3.wram_write_protect)
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{
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block = value & 1;
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}
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}
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}
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}
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