//////////////////////////////////////////////////////////////////////////
// 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);
			}
		}


	}
}