谁帮我把下面的一段话翻译成英文？摘要：鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，

Question

谁帮我把下面的一段话翻译成英文？摘要：鉴于MCS-51系统只提供“二级中断嵌套”，提出扩展51系统中断优先级的纯软件方法。其利用51系统内建的中断允许寄存器IE和中断优先级寄存器IP，通过屏蔽字机制来实现；以C51的形式，给出这种扩展方法的函数库实现，为该方法的使用赋予友好、简洁的用户接口。

Answer 1

In view of the MCS-51 system to provide only "secondary nested interrupt," made the system disrupted the expansion of 51 priority pure software approach. 51 built-in advantage of its system to allow the interruption of IE register and interrupt priority register IP, through the screening mechanism for the realization of the word; in the form of C51, given the expansion of this method to achieve the library for the use of methods to give friendly, simple The user interface.