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Microprocessor

Microprocessor
Register pair used to indicate memory

 B and C
 W and Z
 H and L
 D and E

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

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

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Microprocessor
Assertion(A): Address bus is unidirectional. Reason(R): Data bus is bidirectional

 Both A & R are true and R is the correct explanation of A
 A is false but R is true
 A is true but R is false
 Both A & R are true but R is not the correct explanation of A

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Microprocessor
The cycle required to fetch and execute an instruction in a 8085 microprocessor is which one of the following?

 Instruction cycle
 Machine cycle
 Memory cycle
 Clock cycle

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Microprocessor
During OPCODE fetch the state of S0 and S1 is

 10
 01
 11
 00

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Microprocessor
How many segments are there in 8086?

 2.
 6.
 4.
 3.

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