55 lines
1.1 KiB
C#
55 lines
1.1 KiB
C#
using System.IO;
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namespace MyNes.Core;
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[BoardInfo("6-in-1 (SuperGK)", 57)]
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internal class Mapper057 : Board
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{
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private int chr_aaa;
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private int chr_bbb;
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private int chr_hhh;
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internal override void WritePRG(ref ushort address, ref byte data)
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{
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switch (address & 0x8800)
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{
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case 32768:
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chr_aaa = data & 7;
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chr_hhh = (data & 0x40) >> 3;
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break;
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case 34816:
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chr_bbb = data & 7;
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if ((data & 0x10) == 16)
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{
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Switch32KPRG((data & 0xE0) >> 6, PRGArea.Area8000);
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}
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else
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{
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Switch16KPRG((data & 0xE0) >> 5, PRGArea.Area8000);
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Switch16KPRG((data & 0xE0) >> 5, PRGArea.AreaC000);
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}
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Switch01KNMTFromMirroring(((data & 8) == 8) ? Mirroring.Horz : Mirroring.Vert);
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break;
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}
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Switch08KCHR(chr_hhh | (chr_aaa | chr_bbb));
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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(chr_aaa);
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stream.Write(chr_bbb);
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stream.Write(chr_hhh);
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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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chr_aaa = stream.ReadInt32();
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chr_bbb = stream.ReadInt32();
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chr_hhh = stream.ReadInt32();
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}
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}
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