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Microprocessor

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

 POP D
 POP B
 POP 30 H
 POP PSW

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Microprocessor
Register pair used to indicate memory

 W and Z
 B and C
 H and L
 D and E

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Microprocessor
Let the content of accumulator and register B be 0000 0100 and 0100 0000 respectively before execution of instruction SUB B. The content of accumulator after the execution of this instruction will be

 01000000
 11000100
 010001000
 00000100

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Microprocessor
We say that a set of gates is logically complete if we can build any circuit without using any other kind of gates. Which of the following sets are logically complete

Set of {EXOR, NOT}
Set of {AND,OR,NOT}
Set of {AND,OR}
None of these

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Microprocessor
In 8085 microprocessor, the RST6 instruction transfer programme execution to following location

 0048H.
 0024H.
 0060H.
 0030H.

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

 18
 8
 16
 12

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