Method PopUnsignedDWord

src/newgrf_text.cpp:710–714

	int16_t  PopSignedWord()    { return (int32_t)this->PopUnsignedWord(); }

	uint32_t PopUnsignedDWord()
	{
		uint32_t val = this->PopUnsignedWord();
		return val | (this->PopUnsignedWord() << 16);
	}
	int32_t  PopSignedDWord()   { return (int32_t)this->PopUnsignedDWord(); }

	uint64_t PopUnsignedQWord()