Language Processors
Job Control Language (JCL) statements are Used to

Allocate the CPU to a job
Specify, to the operating system, the beginning and end of a job in a batch
Read the input from the slow-speed card reader to the high-speed magnetic disk
All of these

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Language Processors
The function(s) of the Syntax phase is/ are:

to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs
to build a literal table and an identifier table
to parse the source program into the basic elements or tokens of the language
to build a uniform symbol table

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Language Processors
The system/370 assembler language

is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
allows multiple programs to reside in separate areas of core at the same time
is a term that refers to the control programs of an operating system
allows the programmer to write base registers and displacements explicitly in the source program

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Language Processors
A base register table

is a term that refers to the control programs of an operating system
allows multiple programs to reside in separate areas of core at the same time
allows the programmer to write base registers and displacements explicitly in the source program
is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain

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