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
A non-relocatable program is one which

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

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Language Processors
A compiler is

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

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