Electronics and Communication Engineering - Microprocessors

6. 

Assertion (A): In C it is possible for functions to call themselves.

Reason (R): C makes use of 'Pointers'.

A. Both A and R are correct and R is correct explanation of A
B. Both A and R are correct but R is not correct explanation of A
C. A is correct R is wrong
D. A is wrong R is correct

Answer: Option B

Explanation:

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7. 

In IC 74181 a sum greater than 15 leads to low carry out.

A. True
B. False

Answer: Option A

Explanation:

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8. 

Assertion (A): In 8085, the zero flag is set when ALU operation results in 0. If the result is not 0, this flag is reset.

Reason (R): In 8085 the S flag is set when the contents of accumulator become negative during execution of an instruction.

A. Both A and R are correct and R is correct explanation of A
B. Both A and R are correct but R is not correct explanation of A
C. A is correct R is wrong
D. A is wrong R is correct

Answer: Option D

Explanation:

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9. 

The operations which occur most frequently in a computer are

A. fetch
B. execute
C. both (a) and (b)
D. none of the above

Answer: Option C

Explanation:

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10. 

The addressing mode depicted in the given figure is

A. direct
B. register
C. register indirect
D. immediate

Answer: Option C

Explanation:

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