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

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

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Language Processors
Terminal Table

a permanent table which lists all key words and special symbols of the language in symbolic form
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
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
contains all constants in the program

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Language Processors
Which of the following functions is/ are performed by the loader?

Physically place the machine instructions and data into memory
All of these
Allocate space in memory for the programs and resolve symbolic references between object decks
Adjust all address dependent locations, such as address constants, to correspond to the allocated space

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Language Processors
A non-relocatable program is one which

All of these
can itself perform the relocation of its address-sensitive portions
consists of a program and relevant information for its relocation
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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