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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
 XRI FOH
 ANI OFH

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Microprocessor
For the number A[15:0] = 0110110010001111, A[14:13] is ______ A[3:2].

The same as
Less than
Greater than
Cannot be determined

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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

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

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Microprocessor
The 8085 microprocessor uses a crystal of frequency 6.25 Mhz. The T-state value is

 640ns
 960ns
 320ns
 1280ns

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Microprocessor
A structure that stores a number of bits taken “together as a unit” is a

Mux
Decoder
Register
Gate

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Microprocessor
PSW stands for

 accumulator and flag register contents
 none
 flag byte
 accumulator contents

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