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Microprocessor

Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0048H.
 0060H.
 0024H.
 0030H.

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Microprocessor
The address bus of any microprocessor is always

 Bi-directional
 None
 Either unidirectional or bi-directional
 Unidirectional

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Microprocessor
Consider the following registers: 1. Accumulator and flag register 2. B and C register 3. D and E register 4. H and L register Which of these 8-bit registers of 8085 microprocessor can be paired together to make a 16-bit register?

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

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Microprocessor
A single instruction to clear the lower nibble of accumulator in 8085 language assembly is

 XRI 0FH
 XRI FOH
 ANI OFH
 ANI F0H

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Microprocessor
It is possible to copy a file in the same directory.

True
False

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Microprocessor
Using one 8259 IC is equivalent to providing …………. INTR pins on 8085

 16
 12
 18
 8

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