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Microprocessor

Microprocessor
Length of the instruction POP D is

 2 byte
 1 byte
 3 byte
 4 byte

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Microprocessor
In one’s complement 8 bit representation 11111111 represents

+0
1
-1
-0

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Microprocessor
In microprocessor based system DMA refers to

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

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Microprocessor
Which of the following interrupt is both level and edge sensitive?

 RST 7.5
 TRAP
 INTR
 RST 5.5

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Microprocessor
A microprocessor differentiates between op code, data/address at any time by

 the sequence in which memory contents are fetched by it
 the program counter
 the stack pointer
 its internal registers

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Microprocessor
Both the ALU and control section of CPU employ which special purpose storage location?

 Registers
 Buffers
 Accumulators
 Decoders

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