48 lines
1.1 KiB
C#
48 lines
1.1 KiB
C#
//////////////////////////////////////////////////////////////////////////
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// Mapper061 //
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//////////////////////////////////////////////////////////////////////////
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using static VirtualNes.MMU;
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using static VirtualNes.Core.CPU;
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using INT = System.Int32;
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using BYTE = System.Byte;
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using System;
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//using Codice.CM.Client.Differences;
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namespace VirtualNes.Core
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{
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public class Mapper061 : Mapper
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{
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public Mapper061(NES parent) : base(parent)
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{
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}
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public override void Reset()
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{
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SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
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}
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//void Mapper061::Write(WORD addr, BYTE data)
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public override void Write(ushort addr, byte data)
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{
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switch (addr & 0x30)
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{
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case 0x00:
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case 0x30:
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SetPROM_32K_Bank(addr & 0x0F);
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break;
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case 0x10:
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case 0x20:
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SetPROM_16K_Bank(4, ((addr & 0x0F) << 1) | ((addr & 0x20) >> 4));
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SetPROM_16K_Bank(6, ((addr & 0x0F) << 1) | ((addr & 0x20) >> 4));
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break;
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}
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if ((addr & 0x80) != 0) SetVRAM_Mirror(VRAM_HMIRROR);
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else SetVRAM_Mirror(VRAM_VMIRROR);
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}
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}
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}
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