数字指令装置 digital command assembly ; DC digitl commnd ssbly
多字指令 multiwordinsturction ; [计] multiword instruction ; multiple word instruction
单字指令 one word instruction ; [计] single-word instruction
数字指令 [计] digital command
手动方式数字指令 Manual numeric command
长字指令 Long Word Instruction
数字指令系统 [计] digital command system
早期文字指令接口的 DOS
虽然指令集主要是将它们拆解成4个32位的字，不过对于这种情况的处理已经有足够的支持了。
The instruction set is primarily geared around dividing it into four 32-bit words, but there is enough support to handle any of these situations.
因此，在大部分体系架构上，会使用一条find - first - bit - set指令在5个32位的字(140个优先级)中哪一位的优先级最高。
Therefore, on most architectures, a find-first-bit-set instruction is used to find the highest priority bit set in one of five 32-bit words (for the 140 priorities).
记住，lqd指令只能从16字节边界加载，所以它会在加载期间忽略最低有效的四位，而只会从内存加载已对齐的四字。
Remember, the LQD instruction only loads from 16-byte boundaries. It will therefore ignore the four least significant bits during the load, and just load an aligned quadword from memory.
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