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术语 pushdown nesting
释义 pushdown nesting
下推嵌套法;[推下堆巢]
A technique in which each word in turn enters the top register and is then “pushed down” the column from register to register to make room for the subsequent words as they are assigned as data is transferred into storage. When a word is transferred out of the storage (again, only from the top register). other data in the storage moves back up the column from register to register to fill the space left empty. This is accomplished either through programs or the equipment itself.
一种技术或方法,其中当数据被送入存储区时,每个字依次进入顶部寄存器,然 后被“下推 ”一列(从寄存器到寄存器)为后继被指定送入的字留出空间。当某个字从存储器(发)送出去 时(仍然只能从顶部寄存器发送),存储器中的其它数据向上移动一列(从寄存器到寄存器)以 填满留下的空隙位置。这一工作可以通过程序完成,也可由设备本身完成。
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