What's the size of a QWORD on a 64-bit machine?
问题 I'm currently looking to find an answer to the above question. So far I found people saying, that the word size refers to the size of a processor register, which would suggest on a 64-bit machine the word size being 64 bits and thus a QWORD (4 * word) being 256 bits in size. But on the other hand I found sources like this saying the size would be 128 bits (64 bits for 32-bit and doubled this for 64-bit), while even then others suggest the size would be 64 bits. But the last one is somehow