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Microprocessor

Microprocessor
The number of interrupt lines in 8085 is

5
2
4
3

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Microprocessor
In a C expression using assignment operators, relational operators and arithmetic operators, the hierarchy of operations (in the absence of parenthesis) is

Arithmetic, relational, assignment
Relational, assignment, arithmetic
Arithmetic, assignment, relational
Assignment, relational, arithmetic

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Microprocessor
Consider the following statements: Arithmetic Logic Unit (ALU) 1.Performs arithmetic operations 2.Performs comparisons. 3.Communicates with I/O devices 4.Keeps watch on the system Which of these statements are correct?

 1 and 2 only
 1, 2 and 3
 1, 2, 3 and 4
 3 and 4 only

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has the same number of gates as circuit B
Circuit B has more gates than circuit A
Circuit A has more gates than circuit B
None of these

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Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0018H
 0028H
 0000H
 0024H

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Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 INTR
 RST 5.5
 RST 7
 TRAP

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