/// <summary>
/// Reads one byte from the specified bank, at the specified offset
/// </summary>
/// <param name="memoryType"></param>
/// <param name="offset"></param>
/// <returns></returns>
public byte ReadByte(enumMemoryType memoryType, int offset)
{
switch (memoryType)
{
case enumMemoryType.CPU:
return(_prgRom[CpuOffsetToPrgRomOffset(offset)]);
case enumMemoryType.PPU:
return(!ReadInterceptors.TryGetValue(offset, out currentReadInterceptor) ? _chrRom[offset] : currentReadInterceptor(offset));
default:
throw new ArgumentOutOfRangeException(nameof(memoryType), memoryType, null);
}
}
/// <summary>
/// Writes one byte to the specified bank, at the specified offset
/// </summary>
/// <param name="memoryType"></param>
/// <param name="offset"></param>
/// <param name="data"></param>
public void WriteByte(enumMemoryType memoryType, int offset, byte data)
{
switch (memoryType)
{
case enumMemoryType.CPU:
_prgRom[CpuOffsetToPrgRomOffset(offset)] = data;
return;
case enumMemoryType.PPU:
if (!WriteInterceptors.TryGetValue(offset, out currentWriteInterceptor))
{
_chrRom[offset] = data;
}
else
{
currentWriteInterceptor(offset, data);
}
return;
default:
throw new ArgumentOutOfRangeException(nameof(memoryType), memoryType, null);
}
}