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Microprocessor

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

 ANI F0H
 XRI 0FH
 ANI OFH
 XRI FOH

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Microprocessor
How many segments are there in 8086?

 6.
 2.
 3.
 4.

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Microprocessor
How many T-states are required for execution of OUT 80H instruction?

 7
 16
 13
 10

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Microprocessor
While INX B instruction execute,

 only carry flag will be affected
 all flags will be affected
 no flags will be affected
 only carry and zero flags will be affected

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Microprocessor
PSW stands for

 accumulator contents
 none
 flag byte
 accumulator and flag register contents

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the I/O devices and memory chips
 the O/P devices only
 the I/P device only
 all the I/O devices

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