Abstract

Microprogramming a high-level language interpreter permits execution speeds to be achieved which rival large conventional systems. However, the limited size of current control memories imposes limitations on the complexity of the resident interpreter. An extremely terse APL interpreter has been developed and implemented by the author, which requires less than 2K words of control storage on a contemporary microprocessor. Two areas in which specially significant advances have been achieved were the design of the parser and the design of the virtual memory management algorithms. The design of dynamic structures for microprogrammed memory management is presented here.

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