octa reserves quadword values (the mnemonic is a holdover from 16-bit days).

octa 保留四字值（此缩写形式延用了 16 位时的用法）。

youdao

Therefore, for arbitrary addresses, we have no idea where in the loaded quadword the value we wanted is.

因而，对于任意的地址，我们无从知道在加载的四字中我们想要的那个值位于何处。

youdao

These all need to be quadword aligned, so that you can copy it into your main program and use the values with DMA transfers.

而且它们都是按四字节对齐的以便能够将其复制进您的主程序并在 DMA 传输时使用值。

youdao