internal void Pop(WordRegister register)
{
byte high, low;
Timing.BeginStackReadCycle();
low = Memory.Untimed.ReadByteAt(Registers.SP);
Timing.EndStackReadCycle(false, low);
Registers.SP++;
Timing.BeginStackReadCycle();
high = Memory.Untimed.ReadByteAt(Registers.SP);
Timing.EndStackReadCycle(true, high);
Registers.SP++;
ushort value = (low, high).ToWord();
Registers[register] = value;
}