AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper089.cs

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2024-08-04 23:37:02 +08:00
//////////////////////////////////////////////////////////////////////////
// Mapper089 SunSoft (水戸黄門) //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
using static VirtualNes.Core.CPU;
using INT = System.Int32;
using BYTE = System.Byte;
using System;
using Codice.CM.Client.Differences;
namespace VirtualNes.Core
{
public class Mapper089 : Mapper
{
public Mapper089(NES parent) : base(parent)
{
}
public override void Reset()
{
SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
SetVROM_8K_Bank(0);
}
//void Mapper089::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
if ((addr & 0xFF00) == 0xC000)
{
SetPROM_16K_Bank(4, (data & 0x70) >> 4);
SetVROM_8K_Bank(((data & 0x80) >> 4) | (data & 0x07));
if ((data & 0x08) != 0) SetVRAM_Mirror(VRAM_MIRROR4H);
else SetVRAM_Mirror(VRAM_MIRROR4L);
}
}
}
}