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Microprocessor

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

234
64 H
6 AFH
45 H

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Microprocessor
Length of the instruction POP D is

 2 byte
 4 byte
 3 byte
 1 byte

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Microprocessor
In order to save accumulator value on the stack, which of the following instruction may be used

 PUSH PSW
 PUSH SP
 PUSH A
 POP PSW

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

 TRAP
 RST 7
 RST 5.5
 INTR

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Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 2
 16
 8
 6

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Microprocessor
In microprocessor based system DMA refers to

None of these
 direct memory access for the I/O device
 direct memory access for the user
 direct memory access for microprocessor

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