Operating System (OS)
Uniform Symbols Table

contains all constants in the program
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
None of these
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation

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Operating System (OS)
The advantage(s) of incorporating the macro processor into pass 1 is(are):

None of these
more flexibility is available to the programmer in that he may use all the features of the assembler in conjunction with macros.
many functions do not have to be implemented twice.
Functions are combined and it is not necessary to create intermediate files as output from the macros processor and input to the assembler.
All of these

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