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Microprocessor

Microprocessor
________is the only non-vectored interrupt in 8085 microprocessor.

 RST 5.5
 INTR
 RST 7
 TRAP

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Microprocessor
The word size of 8085 microprocessor is

 20-bit
 8-bit
 16-bit
 4-bit

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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
 00000100
 11000100
 010001000

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Microprocessor
Identify the non-programmable interfacing device from the following

 8257.
 8212.
 8295.
 8255.

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

 POP 30 H
 POP D
 POP B
 POP PSW

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Microprocessor
If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory)

Doubles
Halves
Increases by 2^(address bits)/addressability
Remains unchanged

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