public byte PpuRead(ushort address, bool readOnly = false)
{
byte data = 0x00;
address &= 0x3FFF;
if (_cartridge.CpuWrite(address, data))// Possible remove
{
}
else if (address <= 0x1FFF) //Pattern memory
{
data = _tablePattern[(address & 0x1000) >> 12, address & 0x0FFF];
}
else if (address >= 0x2000 && address <= 0x3EFF) //Name table memory
{
}
else if (address >= 0x3F00 && address <= 0x3FFF) //Palette memory
{
address &= 0x001f;
if (address == 0x0010)
{
address = 0x0000;
}
if (address == 0x0014)
{
address = 0x0004;
}
if (address == 0x0018)
{
address = 0x0008;
}
if (address == 0x001C)
{
address = 0x000C;
}
data = _tablePalette[address];
}
return(data);
}
public void CpuWrite(ushort address, byte data)
{
if (_cartridge.CpuWrite(address, data))// Possible remove
{
}
else if (address <= 0x1FFF)
{
CpuRam[address & 0x07FF] = data;
}
else if (address >= 0x2000 && address <= 0x3FFF)
{
_ppu.CpuWrite((ushort)(address & 0x0007), data);
}
}
