Language Processors
The macro processor must perform

expand macro calls and substitute arguments
save the macro definitions
All of these
recognize macro definitions and macro calls

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Language Processors
A loader is

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

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Language Processors
A self-relocating program is one which

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

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