AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper185.cs

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2024-08-03 23:15:19 +08:00
//////////////////////////////////////////////////////////////////////////
// Mapper185 Character disable protect //
//////////////////////////////////////////////////////////////////////////
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 Mapper185 : Mapper
{
BYTE patch;
public Mapper185(NES parent) : base(parent)
{
}
public override void Reset()
{
switch (PROM_16K_SIZE)
{
case 1: // 16K only
SetPROM_16K_Bank(4, 0);
SetPROM_16K_Bank(6, 0);
break;
case 2: // 32K
SetPROM_32K_Bank(0);
break;
}
for (INT i = 0; i < 0x400; i++)
{
VRAM[0x800 + i] = 0xFF;
}
patch = 0;
uint crc = nes.rom.GetPROM_CRC();
if (crc == 0xb36457c7)
{ // Spy vs Spy(J)
patch = 1;
}
}
//void Mapper185::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
if (((patch == 0) && ((data & 0x03) != 0)) || ((patch != 0) && data == 0x21))
{
SetVROM_8K_Bank(0);
}
else
{
SetVRAM_1K_Bank(0, 2); // use vram bank 2
SetVRAM_1K_Bank(1, 2);
SetVRAM_1K_Bank(2, 2);
SetVRAM_1K_Bank(3, 2);
SetVRAM_1K_Bank(4, 2);
SetVRAM_1K_Bank(5, 2);
SetVRAM_1K_Bank(6, 2);
SetVRAM_1K_Bank(7, 2);
}
}
}
}