public void Push(ushort value)
        {
            var spAddress = GetRegister(Registers.SP);

            MemoryMapper.SetUInt16(spAddress, value);
            SetRegister(Registers.SP, (ushort)(spAddress - 2));
            StackFrameSize += 2;
        }
 public void SetRegister(Registers reg, ushort value)
 {
     MemoryMapper.SetUInt16((ushort)RegisterMap[reg], value);
 }