private static void JumpTo(Emulator emulator, byte lower, byte upper, bool condition)
{
ushort address = (ushort)((upper << 8) + lower);
emulator.ProgramCounter = condition ? address : emulator.ProgramCounter;
}
private static void CopyFromSourceToDestination(Emulator emulator, Register?source, Register destination)
{
emulator[destination] = source.HasValue ? emulator[source.Value] : emulator.GetHLMemoryValue();
}