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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 245
 244
 247
 246

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

 Machine cycle
 Memory cycle
 Clock cycle
 Instruction cycle

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Microprocessor
Consider the following I) Sign flag II) Trap flag III) Parity flag IV) Auxiliary carry flag. Which one of the above flags is/are present in 8085 microprocessor?

 (I) only
 (I) & (II)
 (I) ,(III) & (IV)
 (II) & (III)

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Microprocessor
A 37 bit mantissa has an accuracy of

8 decimal places
10 decimal places
6 decimal places
11 decimal places

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Microprocessor
The five flags in 8085 are designated as

Z, CY, S, D, AC
D, Z, S, P, AC
Z, CY, S, P and AC
Z, C, S, P, AC

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

 ANI OFH
 XRI FOH
 XRI 0FH
 ANI F0H

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