49 lines
1.3 KiB
C#
49 lines
1.3 KiB
C#
//////////////////////////////////////////////
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// Mapper200 1200-in-1 //
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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 Mapper200 : Mapper
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{
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public Mapper200(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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SetPROM_16K_Bank(4, 0);
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SetPROM_16K_Bank(6, 0);
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if (VROM_1K_SIZE != 0)
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{
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SetVROM_8K_Bank(0);
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}
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}
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//void Mapper200::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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SetPROM_16K_Bank(4, addr & 0x07);
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SetPROM_16K_Bank(6, addr & 0x07);
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SetVROM_8K_Bank(addr & 0x07);
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if ((addr & 0x01) != 0)
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{
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SetVRAM_Mirror(VRAM_VMIRROR);
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}
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else
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{
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SetVRAM_Mirror(VRAM_HMIRROR);
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}
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}
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}
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}
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