AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper046.cs

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2024-08-05 00:44:30 +08:00
//////////////////////////////////////////////////////////////////////////
// Mapper046 Rumble Station //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
using static VirtualNes.Core.CPU;
using INT = System.Int32;
using BYTE = System.Byte;
using Codice.CM.Client.Differences;
namespace VirtualNes.Core
{
public class Mapper046 : Mapper
{
int[] reg = new int[4];
public Mapper046(NES parent) : base(parent)
{
}
public override void Reset()
{
reg[0] = 0;
reg[1] = 0;
reg[2] = 0;
reg[3] = 0;
SetBank();
SetVRAM_Mirror(VRAM_VMIRROR);
}
//void Mapper046::WriteLow(WORD addr, BYTE data)
public override void WriteLow(ushort addr, byte data)
{
reg[0] = data & 0x0F;
reg[1] = (data & 0xF0) >> 4;
SetBank();
}
//void Mapper046::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
reg[2] = data & 0x01;
reg[3] = (data & 0x70) >> 4;
SetBank();
}
void SetBank()
{
SetPROM_8K_Bank(4, reg[0] * 8 + reg[2] * 4 + 0);
SetPROM_8K_Bank(5, reg[0] * 8 + reg[2] * 4 + 1);
SetPROM_8K_Bank(6, reg[0] * 8 + reg[2] * 4 + 2);
SetPROM_8K_Bank(7, reg[0] * 8 + reg[2] * 4 + 3);
SetVROM_1K_Bank(0, reg[1] * 64 + reg[3] * 8 + 0);
SetVROM_1K_Bank(1, reg[1] * 64 + reg[3] * 8 + 1);
SetVROM_1K_Bank(2, reg[1] * 64 + reg[3] * 8 + 2);
SetVROM_1K_Bank(3, reg[1] * 64 + reg[3] * 8 + 3);
SetVROM_1K_Bank(4, reg[1] * 64 + reg[3] * 8 + 4);
SetVROM_1K_Bank(5, reg[1] * 64 + reg[3] * 8 + 5);
SetVROM_1K_Bank(6, reg[1] * 64 + reg[3] * 8 + 6);
SetVROM_1K_Bank(7, reg[1] * 64 + reg[3] * 8 + 7);
}
//void Mapper046::SaveState(LPBYTE p)
public override void SaveState(byte[] p)
{
p[0] = (byte)reg[0];
p[1] = (byte)reg[1];
p[2] = (byte)reg[2];
p[3] = (byte)reg[3];
}
//void Mapper046::LoadState(LPBYTE p)
public override void LoadState(byte[] p)
{
reg[0] = p[0];
reg[1] = p[1];
reg[2] = p[2];
reg[3] = p[3];
}
public override bool IsStateSave()
{
return true;
}
}
}