Language Processors
Assembler is

is a program that appears to execute a source program as if it were machine language
a program that places programs into memory and prepares them for execution
a program that automate the translation of assembly language into machine language
a program that accepts a program written in a high level language and produces an object program

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

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

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Language Processors
The function(s) of the Storage Assignment is/are:

to assign storage to all temporary locations that are necessary for intermediate results
to assign storage to all variables referenced in the source program
All of these
to assign storage to literals, and to ensure that the storage is allocated and appropriate locations are initialized

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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 syntactic constructs through reductions
recognition of basic elements and creation of uniform symbols

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Language Processors
The advantage(s) of incorporating the macro processor into pass 1 is/ are:

many functions do not have to be implemented twice
All of these
Functions are combined and it is not necessary to create intermediate files as output from the macro processor and input to the assembler
more flexibility is available to the programmer in which he/she may use all the features of the assembler in conjunction with macros

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