Language Processors
Which of the following might be used to convert high-level language instructions into machine language?

an operating environment
applications software
an interpreter
system software

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Language Processors
A base register table

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
allows the programmer to write base registers and displacements explicitly in the source program
is a term that refers to the control programs of an operating system

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

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

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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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