一、引言: 在大型计算机系统中,采用平行流水线技术是获得高速的有效方法。可以保证系统每拍流出接近一条指令的速度。在流水线技术中,流水线站长的选择是很重要的。站长选择太短,比如取一个译码时间作为一个标准站长,对比较多的指令则加长了操作拍节数,因而使机器速度下降。如果取得太长势必拉长的处理机的时钟间隔,同样也严重地影响机器的速度。往往是选取一个定点加法运算的时间作为流水线的一个标准站长。 First, the introduction: In large-scale computer systems, the use of parallel pipeline technology is an effective way to obtain high-speed. Can guarantee the system out of each beat close to a command speed. In the pipeline technology, the choice of pipeline owners is very important. Webmaster choice is too short, such as taking a decoding time as a standard webmaster, more instructions will be lengthened the number of operating beat, so that the machine speed down. If you get too long the processor clock interval will be stretched, but also seriously affect the speed of the machine. Often is to select a fixed-point addition time as a standard line of the owners.