AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper240.cs

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2024-08-03 22:26:53 +08:00
//////////////////////////////
// Mapper240 Gen Ke Le Zhuan //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
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namespace VirtualNes.Core
{
public class Mapper240 : Mapper
{
public Mapper240(NES parent) : base(parent)
{
}
public override void Reset()
{
SetPROM_32K_Bank(0, 1, PROM_8K_SIZE - 2, PROM_8K_SIZE - 1);
if (VROM_1K_SIZE != 0)
{
SetVROM_8K_Bank(0);
}
}
//void Mapper240::WriteLow(WORD addr, BYTE data)
public override void WriteLow(ushort addr, byte data)
{
if (addr >= 0x4020 && addr < 0x6000)
{
SetPROM_32K_Bank((data & 0xF0) >> 4);
SetVROM_8K_Bank(data & 0xF);
}
}
}
}