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

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

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Language Processors
A base register table

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

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