Language Processors
The task(s) of the Lexial analysis phase is/are:

to build a literal table and an identifier table
to parse the source program into the basic elements or tokens of the language
to build a uniform symbol table
All of these

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Language Processors
The system/370 assembler language

is a term that refers to the control programs of an operating system
is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
allows multiple programs to reside in separate areas of core at the same time
allows the programmer to write base registers and displacements explicitly in the source program

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Language Processors
In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with

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

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Language Processors
Assembly code data base is associated with

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

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