43 lines
942 B
C#
43 lines
942 B
C#
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using System.IO;
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namespace MyNes.Core
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{
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[BoardInfo("Unknown", 232)]
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internal class Mapper232 : Board
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{
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private int prg_reg;
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internal override void HardReset()
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{
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base.HardReset();
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Switch16KPRG(3, PRGArea.AreaC000);
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}
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internal override void WritePRG(ref ushort address, ref byte data)
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{
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if (address < 49152)
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{
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prg_reg = ((data & 0x18) >> 1) | (prg_reg & 3);
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}
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else
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{
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prg_reg = (prg_reg & 0xC) | (data & 3);
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}
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Switch16KPRG(prg_reg, PRGArea.Area8000);
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Switch16KPRG(3 | (prg_reg & 0xC), PRGArea.AreaC000);
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}
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internal override void WriteStateData(ref BinaryWriter stream)
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{
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base.WriteStateData(ref stream);
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stream.Write(prg_reg);
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}
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internal override void ReadStateData(ref BinaryReader stream)
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{
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base.ReadStateData(ref stream);
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prg_reg = stream.ReadInt32();
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}
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}
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}
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