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Microprocessor

Microprocessor
Which of the following instruction is not possible in 8085?

 POP PSW
 POP D
 POP 30 H
 POP B

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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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Microprocessor
The execution of RST n instruction causes the stack pointer to

 increment by two
 remain unaffected
 decrement by two
None of these

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Microprocessor
RST 3 instruction will cause the processor to branch to the location

 0028H
 0018H
 0000H
 0024H

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Microprocessor
What is SIM?

  Set interrupt mask.
 None of these.
 Sorting interrupt mask.
 Select interrupt mask.

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Microprocessor
The maximum number of seven segment displays that can be connected to 8279 is

 18
 16
 8
 12

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