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MCQ | Procedures and Macros in 8086 Microprocessor

Multiple choice questions and answers (MCQ) based on the Procedures and Macros of the 8086 microprocessor with 4 choices, correct answer and explanation.
Submitted by Monika Sharma, on September 01, 2019

Question 1:

Which of the following assembler directives are used to define a Procedure in the 8086 microprocessor?

1. PROCEDURE and ENDP
2. STARTP and ENDP
3. PROC and ENDPROC
4. None of the above

Answer: d. None of the above

Explanation:

The assembler directive that are used for defining a procedure in the 8086 microprocessor are: PROC and ENDP.

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Question 2:

Which of the following features is not offered by Macros?

1. Code reusability
2. Less memory space
3. Fast execution
4. None of the above

Answer: b. Less Memory Space

Explanation:

Every time a Macro is invoked, the entire set of instructions is loaded into the main memory due to which the execution of macros takes large memory space.

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Question 3:

Which of the following is the correct syntax for calling a Macro?

1. MACRO macro_name
2. MACRO macro_name [ parameter's list]
3. macro_name [parameter's list ]
4. None of the above

Answer: c. macro_name [parameter's list ]

Explanation:

While calling a Macro, we need not mention the assembler directive: MACRO. Also, the parameter's list is optional to pass. It is passed only if the definition of the Macro contains parameters.

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Question 4:

Which of the following characteristics of Procedures makes it unfit for being used for short instruction sets with less number of instructions?

1. Extra code requirement for integrating procedures
2. Linking of procedures with the mainline program takes too much time
3. Extra work load on processor for shifting controls
4. All of the Above

Answer: d. All of the above

Explanation:

All the mentioned reasons are responsible for a procedure not being a suitable option for handling short instruction sets with less number of instructions.

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Question 5:

In a program, a Macro is being called 'n' times. Then how many times is the machine code generated for the same?

1. 1 time
2. 'n' times
3. 'n-1' times
4. None of the above

Answer: b. 'n' times

Explanation:

The machine code (containing the instructions within the Macros) is generated every time the macro is called. So, if a Macro is being called 'n' times, then the number of times the machine code is generated is also 'n'?