【摘要】 本文讨论LISP机LISP-M1系统中,面向COMMON·LISP语言子集的求值机构.文中提出了一种新的数据表示综合方案,即系统在整体上以对象上带类型说明法为主,但在适当场合采用指针上带类型说明法.同时,为了提高系统并行操作,运算效率、节省控存,在动态类型检测与分枝,各种类型函数的实现,表存贮器使用等方面都采取了较好的编码策略.本系统在模拟系统上试运行,效果明显.更多还原

【Abstract】 This paper is concerned with the evaluator,based on a subset of COMMON LISP,on the LISP machine LISP-M1.A new approach to data representation is (?)oposed,namely,a mixed method using tagged objects on the whole and typed pointers whereever suitable.In procedures of dynamic type checking, various function ealling,list memory aceessing,and so forth,proper micropro- gramming stategies are adopted to improve efficiency.By running the evalua- tor on the simulator of LISP-M1,the results have shown that it does boost the performance of LISP programs.更多还原