单词double word
un.: 双倍字
网络: 双字；双字组
双倍字
The first double word of every frame points to the next frame and this is immediately followed by the address of the calling function.
每一帧的第一个双字（doubleword）指向下一帧，这后面紧跟着调用函数的地址。
The SPU actually loads two instructions at a time from a doubleword-aligned boundary.
SPU实际上会从一个双字对齐的边界开始一次加载两条指令。
It provides for word and doubleword operand fetches and stores between storage and a set of 32 Floating-Point Registers (FPRs).
它规定在存储设备与一组32位浮点寄存器（Floating-PointRegister，FPR）之间存取和储存的字和双字操作数。
Fixed-point instructions operate on byte, halfword, word, and doubleword operands.
定点指令作用于字节、半字、字和双字操作数。
All stack values must be doubleword (8-byte) aligned, and the whole frame should be quadword (16-byte) aligned.
所有堆栈的值都必须是双字（8个字节）对齐的，整个帧应该是4字（16个字节）对齐的。
byte , halfword , word , and doubleword sizes.
字节、半字、字和双字大小。
On some RISC platforms, of course, you must have doubleword and quadword values aligned in this way.
当然，在一些精简指令集的平台上，你必须以这种方式两个字和四个字的值。