ReadInt - reading signed/unsigned number

    static int ReadInt(lua_State *L)
    // memoryAddress, size, is_signed, virtual_protect
    {
        enum ARGUMENT_ORDER
        {
            ARGUMENT_POINTER = 1,
            ARGUMENT_SIZE,
            ARGUMENT_SIGN,
            ARGUMENT_VIRTUAL_PROTECT,
        };

        Script S(L, 0);

        void* address = (void*)S.GetInt(ARGUMENT_POINTER, false);

        if(address)
        {
            size_t size = S.GetInt(ARGUMENT_SIZE, 0);

            if (S.GetBool(ARGUMENT_VIRTUAL_PROTECT, false))
                UnprotectMemory(address, size);

            signed long int value;

            switch (size)
            {
                default:
                    value = *(BYTE*)address;
                    break;
                case sizeof(WORD):
                    value = *(WORD*)address;
                    break;
                case sizeof(DWORD):
                    value = *(DWORD*)address;
            }

            if(S.GetBool(ARGUMENT_SIGN, false))
            {
                if(1 << ((size*8)-1) & value)
                    value -= 1 << (size*8);
            }

            S.PushInt(value);
        }

        return 1;
    }