USING

June 12, 2022June 12, 2022; dwoolbrightdwoolbright; 0 Comments;

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Quiz: USING

Which line causes the first assembly error?

USING *,R7, R8

X DS CL4

Y DS CL4

MVC X,Y

DROP R8

MVC X,Y

DROP R7

MVC X,Y

Deselect Answer

The USING statement.

The first MVC.

DROP R8

The second MVC X,Y

The third MVC X,Y

None

What is the first operand of a simple USING statement?

Deselect Answer

A collection of one or more registers.

A base address.

A storage location for data.

An equate symbol.

None of These.

None

Choose one reasons for an addressability error.

Deselect Answer

The assembler doesn't have enought memory.

A fullword has not been defined on a fullword boundary.

The assembler can't compute a displacement.

A field has been defined twice.

None

What directive frees the registers previously committed by a simple USING statement?

Deselect Answer

END

STOP

CANCEL

DROP

None of These.

None

What is the range of a simple USING statement?

Deselect Answer

The range starts at the USING statement and continues until the end of the program, or until all registers have been dropped.

The range starts at the USING statement and continues until the end of the program.

The range is the collection of storage for which the assembler can choose a base register.

The range is the collection of executable code for the program.

None of These.

None

What is the domain of a simple USING statement?

Deselect Answer

The domain starts at the USING statement and continues until the end of the program, or until all registers have been dropped.

The domain starts at the USING statement and continues until the end of the program.

The domain starts at the base address and continues for 4k.

The domain is the collection of executable code for the entire program.

None of These.

None

What is the purpose of a simple USING statement?

Deselect Answer

To inform the assembler which memory areas are available for use.

To inform the assembler which registers to use for base/displacement addresses and to indicate the base address for each register.

To inform the assembler which registers are not used for base/displacement addresses.

To inform the assembler which address space it can use.

None of These.

None

Which line causes the first assembly error?

USING *,R7, R8

X DS CL4

Y DS CL4

MVC X,Y

DROP R7

MVC X,Y

DROP R8

MVC X,Y

Deselect Answer

The USING statement.

The first MVC.

DROP R8

The second MVC X,Y

The third MVC X,Y

None

What follows the first operand of a simple USING statement?

Deselect Answer

A collection of one or more registers.

A base address.

A storage location for data.

An equate symbol.

None of These.

None

10.

How much storage can a single base register cover?

Deselect Answer

256 bytes

512 bytes

1024 bytes

2048 bytes

4096 bytes

None

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USING

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