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Microprocessor

Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 PSW
 B-C
 Stack Pointer
 D-E

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

 Clock cycle
 Memory cycle
 Instruction cycle
 Machine cycle

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Microprocessor
The number of interrupt lines in 8085 is

4
3
2
5

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Microprocessor
The data bus of any microprocessor is always

 Bi-directional
 None
 Either unidirectional or bi-directional
 Unidirectional

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 Program Counter.
 Stack Pointer.
 D-E.
 H-L.

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Microprocessor
A number of 1-bit registers used in microprocessors to indicate certain conditions are usually referred to as

 latches
 counters
 flags
 shift registers

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