AxibugEmuOnline/AxibugEmuOnline.Client/Assets/VirtualNes.Core/Mapper/Mapper200.cs

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2024-08-03 22:26:53 +08:00
//////////////////////////////////////////////
// Mapper200 1200-in-1 //
//////////////////////////////////////////////////////////////////////////
using static VirtualNes.MMU;
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namespace VirtualNes.Core
{
public class Mapper200 : Mapper
{
public Mapper200(NES parent) : base(parent)
{
}
public override void Reset()
{
// SetPROM_32K_Bank( 0, 1, PROM_8K_SIZE-2, PROM_8K_SIZE-1 );
SetPROM_16K_Bank(4, 0);
SetPROM_16K_Bank(6, 0);
if (VROM_1K_SIZE != 0)
{
SetVROM_8K_Bank(0);
}
}
//void Mapper200::Write(WORD addr, BYTE data)
public override void Write(ushort addr, byte data)
{
SetPROM_16K_Bank(4, addr & 0x07);
SetPROM_16K_Bank(6, addr & 0x07);
SetVROM_8K_Bank(addr & 0x07);
if ((addr & 0x01) != 0)
{
SetVRAM_Mirror(VRAM_VMIRROR);
}
else
{
SetVRAM_Mirror(VRAM_HMIRROR);
}
}
}
}