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Microprocessor

Microprocessor
In 8085 microprocessor, in response to RST 7.5 interrupts the execution is transferred to memory location

 003CH
 0034H
 002CH
 0000H

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Microprocessor
The address bus of any microprocessor is always

 None
 Unidirectional
 Bi-directional
 Either unidirectional or bi-directional

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Microprocessor
________used to implement the hardware interrupts (RST 7.5, RST 6.5, RST 5.5) by setting various bits to form masks or generate output data via the Serial Output Data (SOD) line.

 EI
 SIM
 DI
 RIM

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Microprocessor
While INX B instruction execute,

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

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Microprocessor
The relation among IC (Instruction Cycle), FC (Fetch cycle) and EC (Execute Cycle) is

 IC = FC + EC
 IC = FC + 2EC
 EC = IC + FC
 IC = FC - EC

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Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to memory data register.
 transferred to address bus.
 incremented by one.
 transferred to memory address register .

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