Language Processors
In analyzing the compilation of PL/I program, the term "Machine independent optimization" is associated with

recognition of basic elements and creation of uniform symbols
recognition of basic syntactic constructs through reductions
creation of more optional matrix
use of macro processor to produce more optimal assembly code

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Language Processors
Terminal Table

contains all constants in the program
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
a permanent table which lists all key words and special symbols of the language in symbolic form
consists of a full or partial list of the tokens as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation

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Language Processors
A non-relocatable program is one which

consists of a program and relevant information for its relocation
can itself perform the relocation of its address-sensitive portions
All of these
cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation

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